{"title":"APO Series","description":"","products":[{"product_id":"askar-160apo","title":"Askar 160APO Triplet APO Refractor Telescope","description":"\u003cp\u003eThe \u003cstrong\u003eAskar 160APO\u003c\/strong\u003e is a high-quality large-aperture 160mm f\/7 triplet air-spaced apochromatic refractor from Askar (Jiaxing Sharpstar Optical Instrument Co., Ltd.). Sitting above the 140APO in the APO series, the 160APO offers substantially more light-gathering power, a longer focal length of 1120mm, and an engineering package designed to handle heavy camera and accessory loads — all with the premium optical correction and mechanical refinement the APO series is known for.\u003c\/p\u003e\n\n\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced astrophotographers\u003c\/strong\u003e who need maximum aperture in a refractor for high-resolution deep-sky imaging\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eObservatory builders\u003c\/strong\u003e setting up a dedicated permanent or semi-permanent imaging platform\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGalaxy and globular cluster imagers\u003c\/strong\u003e who benefit from the 1120mm focal length for fine detail\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExperienced visual observers\u003c\/strong\u003e seeking a premium large-aperture refractor\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e160mm f\/7 triplet APO optics\u003c\/strong\u003e with one ED glass element for exceptional colour correction at large aperture\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated retractable rear lens tube\u003c\/strong\u003e (115mm) with rudder-type locking ring — binoviewer-ready when contracted, full imaging access when extended\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3.5\" dual-speed rack-and-pinion focuser\u003c\/strong\u003e with 1:10 fine adjustment and 10cm travel, CNC machined with anti-reflective interior\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e360° high-precision rotator\u003c\/strong\u003e with locking scale markings\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e400mm Losmandy dovetail plate included\u003c\/strong\u003e — engineered for the weight of this instrument on heavy-duty mounts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo finder scope bases\u003c\/strong\u003e flanking the focuser\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEAF-compatible focuser\u003c\/strong\u003e for motorized autofocus\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShips in a protective aluminum case\u003c\/strong\u003e for safe storage and transport\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 1x flattener (f\/7) and 0.8x reducer (f\/5.6)\u003c\/strong\u003e available separately\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnique identification name ring\u003c\/strong\u003e on every unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-resolution deep-sky astrophotography with full-frame and APS-C cameras\u003c\/li\u003e\n  \u003cli\u003eGalaxy imaging where 1120mm focal length delivers fine structural detail\u003c\/li\u003e\n  \u003cli\u003eEmission nebula and narrowband imaging with LRGB, SHO filter sets\u003c\/li\u003e\n  \u003cli\u003eVisual observing with 1.25\" or 2\" eyepieces and diagonals\u003c\/li\u003e\n  \u003cli\u003eBinoviewer use (rear tube contracted)\u003c\/li\u003e\n  \u003cli\u003eWide-field imaging with the optional 0.8x reducer at f\/5.6\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRear thread:\u003c\/strong\u003e M84 female; includes 2\"\/1.25\" visual adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 1x flattener:\u003c\/strong\u003e maintains f\/7; corrects field curvature and coma; built-in filter thread and adapter set\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 0.8x reducer:\u003c\/strong\u003e reduces to f\/5.6; field flattening included; adapter set included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDovetail:\u003c\/strong\u003e 400mm Losmandy standard (included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEAF:\u003c\/strong\u003e Compatible with ZWO EAF and most motorized focusers (sold separately)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBinoviewer:\u003c\/strong\u003e Rear tube contracts for binoviewer compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAt 13.6kg gross weight, requires a \u003cstrong\u003every high-payload equatorial mount\u003c\/strong\u003e — look for at least 20–25kg imaging capacity\u003c\/li\u003e\n  \u003cli\u003eA \u003cstrong\u003eflattener is strongly recommended\u003c\/strong\u003e for full-frame astrophotography\u003c\/li\u003e\n  \u003cli\u003eThis is an \u003cstrong\u003eadvanced instrument\u003c\/strong\u003e for experienced imagers only — not suitable for beginners\u003c\/li\u003e\n  \u003cli\u003eFlattener, reducer, EAF, and additional accessories sold separately\u003c\/li\u003e\n  \u003cli\u003eDue to size and weight, best suited for observatory or semi-permanent setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the 160APO differ from the 140APO?\u003c\/strong\u003e\u003cbr\u003e\nThe 160APO has a 31% larger aperture area, a longer 1120mm focal length (vs 980mm), a larger 400mm Losmandy dovetail, and ships in an aluminum case instead of an Oxford cloth bag. It requires a heavier mount and is better suited to permanent or observatory setups.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat mount does it need?\u003c\/strong\u003e\u003cbr\u003e\nAt 13.6kg gross, look for mounts with 20–25kg imaging payload — for example, a Skywatcher EQ8, iOptron CEM120, or equivalent. The included 400mm Losmandy dovetail provides excellent balance options.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the retractable tube stable for imaging?\u003c\/strong\u003e\u003cbr\u003e\nYes. The retractable rear tube is engineered for rigidity — the optical axis is maintained when extended, and the rudder-type locking ring holds it securely under camera loads.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo I need the flattener for astrophotography?\u003c\/strong\u003e\u003cbr\u003e\nFor full-frame sensors, yes — the optional 1x flattener ensures sharp stars edge-to-edge. The 0.8x reducer also provides field flattening while shortening to f\/5.6 for faster exposures.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use it for visual observing?\u003c\/strong\u003e\u003cbr\u003e\nYes. It accepts 1.25\" and 2\" eyepieces and diagonals, and is binoviewer-compatible with the rear tube contracted.\u003c\/p\u003e\n\n\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\n\u003cp\u003eThe Askar 160APO is one of the most capable large-aperture APO refractors available in its price class. Its combination of 160mm optics, long focal length, large Losmandy dovetail, and premium focuser makes it ideal for high-resolution deep-sky imaging — especially galaxies and faint emission nebulae where aperture and focal length make a real difference. Best matched to users with a heavy-payload equatorial mount and an established astrophotography setup. Not recommended for beginners or portable rigs.\u003c\/p\u003e\n\n\u003ch2\u003eOptical Diagram Reports\u003c\/h2\u003e\n\u003cp\u003eThe following optical reports and technical diagrams are provided by Askar for the 160APO:\u003c\/p\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/c4c66299-8ebb-4a7f-8803-30a59af835e7.jpg\" alt=\"Askar 160APO Optical Path Diagram showing triplet APO lens configuration\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/850a58d0-a499-44f1-a227-16642dce87c5.jpg\" alt=\"Askar 160APO Spot Diagram showing star point quality across the image field\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/b288cb06-5853-4709-9b0a-e7de4729884c.jpg\" alt=\"Askar 160APO additional Spot Diagram\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/e9034687-025b-4925-b0e3-772445963f96.jpg\" alt=\"Askar 160APO Product Size Diagram\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/18edc4b2-28a4-4954-9e5a-fd16d14681ad.jpg\" alt=\"Askar 160APO Connection Diagram\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/fafe01e1-250c-41bb-bd04-81f28ef1cd08.jpg\" alt=\"Askar 160APO retractable lens tube instruction diagram\" style=\"max-width:100%;margin-bottom:12px;\"\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":44014108508271,"sku":"160APO","price":5383.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/APO160-a__37611.png?v=1766571575"},{"product_id":"160apo-1x-full-frame-flattener","title":"160APO 1x Full-frame Flattener","description":"\u003cp\u003e\u003cspan\u003eThe Askar 160 APO comes with three optional premium accessories, a 1.0x flattener and a 0.8x reducer. Introduced here is the 1.0x flattener, which is optimized for the Askar 160APO, and can provide more possibilities for telescope use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv id=\"ie_fimg-1736818366331\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/c143bdb5-29f0-4174-ba8f-6b526dcf3732.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_line-1736818366581\" class=\"ie_line\"\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1736818366586\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eThe 1.0x flattener does not change the telescope's focal ratio itself. After connecting with the Askar 160APO, it still maintained a focal ratio of 7. The flattener corrects field curvature and coma, resulting in flatter field edges and finer star points.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 1.0x flattener adopts a triplet design and supports a 44mm full-frame image circle.  The back focus from the M48 thread is a standard 55mm. The front thread is M92*1. At the camera end, it is equipped with M68*1, M54*0.75, and M48*0.75 three sizes of adapters, which are convenient for connection. At the same time, it has a built-in M48*0.75 2-inch filter thread, which can be directly installed and used. The overall CNC machined, both end threaded metal caps prevent ash when not in use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003e1x Flattener Size Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/d9b2c108-4323-4eef-9ba7-2fd468ea243c.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003e1x Flattener Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/6fac3c9d-95bd-414a-83dd-4ad887ac02bf.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eSpot Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/850a58d0-a499-44f1-a227-16642dce87c5.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":44014108541039,"sku":"ASK-Flat-APO-160","price":477.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/36dcdff4-2634-48ac-baae-73f8f7cb8932__39041.png?v=1766571594"},{"product_id":"160apo-0-8x-full-frame-reducer","title":"160APO 0.8x Full-frame Reducer","description":"\u003cp\u003e\u003cspan\u003eThe Askar 160 APO comes with three optional premium accessories, a 1.0x flattener and a 0.8x reducer. Introduced here is the 0.8x reducer, which is optimized for the Askar 160APO, and can provide more possibilities for telescope use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv id=\"ie_fimg-1736818366331\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/c143bdb5-29f0-4174-ba8f-6b526dcf3732.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_line-1736818366581\" class=\"ie_line\"\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1736818366586\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eThe 0.8x reducer can bring Askar 160APO's focal ratio down to F5.6. This is a standard reducer with field flattening capabilities as well. A shorter focal ratio allows the OTA to have a wider field of view and faster exposure times, making it suitable for capturing large areas of nebulae, star clusters, and faint, fast-moving celestial objects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 0.8x reducer adopts a quadruplet design and supports a 44mm full-frame image circle. The back focus from the M48 thread is a standard 55mm. The front thread is M92*1. At the camera end, it is equipped with M68*1, M54*0.75, and M48*0.75 three sizes of adapters, which are convenient for connection. At the same time, it has a built-in M48*0.75 2-inch filter thread, which can be directly installed and used. The overall CNC machined, both end threaded metal caps prevent ash when not in use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003e0.8x Reducer Size Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/95ffac13-afa4-40d1-abfb-0be35dfbf66a.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003e0.8x Reducer Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/24d58b5c-6e62-4a3d-986a-861875d627e5.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eSpot Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/b288cb06-5853-4709-9b0a-e7de4729884c.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":44014108704879,"sku":"ASK-0.8-APO-160","price":477.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/Askar_160_reducer__35581.png?v=1766571613"},{"product_id":"askar-103apo","title":"Askar 103APO Triplet APO Refractor Telescope","description":"\u003cp\u003eThe \u003cstrong\u003eAskar 103APO\u003c\/strong\u003e is a 103mm aperture, f\/6.8 triplet air-spaced apochromatic refractor designed and manufactured by Askar (Jiaxing Sharpstar Optical Instrument Co., Ltd.). Purpose-built for astrophotography, the 103APO combines a compact, lightweight form factor with a high-performance triplet APO objective that includes one element of ED glass — all at a price point that makes serious imaging accessible to more astronomers.\u003c\/p\u003e\n\n\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\n\u003cp\u003eThe Askar 103APO is best suited for \u003cstrong\u003eintermediate to advanced astrophotographers\u003c\/strong\u003e who want a compact yet capable APO refractor for deep-sky imaging. It is also an excellent choice for:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeep-sky imagers\u003c\/strong\u003e targeting nebulae, galaxies, and star clusters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-use users\u003c\/strong\u003e who want a telescope capable of both imaging and visual observation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTravellers and portable rig builders\u003c\/strong\u003e needing a lightweight, packable APO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVisual observers\u003c\/strong\u003e who want a high-quality, colour-corrected refractor with 1.25\"\/2\" eyepiece support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e103mm f\/6.8 triplet APO optics\u003c\/strong\u003e with one ED glass element — superior chromatic aberration correction versus standard doublets\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThree optional correctors\u003c\/strong\u003e: 1x flattener (f\/6.8), 0.8x reducer (f\/5.4), and 0.6x reducer (f\/4) — giving the 103APO one of the widest range of focal ratios in its class\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDetachable two-section lens tube\u003c\/strong\u003e — enables the 0.6x reducer and binoviewer use without additional adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3.3\" dual-speed rack-and-pinion focuser\u003c\/strong\u003e with 1:10 fine-focus adjustment and 10cm travel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e360° high-precision rotator\u003c\/strong\u003e with locking scale for repeatable framing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo finder scope bases\u003c\/strong\u003e — one on each side of the focuser for flexible accessory mounting\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e290mm extended Vixen dovetail plate\u003c\/strong\u003e — compatible with most equatorial mounts; optional Losmandy plate available\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMatting felt interior dew shield and baffled tube interior\u003c\/strong\u003e for maximum stray light reduction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEAF-compatible focuser\u003c\/strong\u003e for motorized autofocus\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight at just 5.5kg gross\u003c\/strong\u003e (including rings and dovetail)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnique identification name ring\u003c\/strong\u003e on every unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDeep-sky astrophotography with APS-C and full-frame cameras\u003c\/li\u003e\n  \u003cli\u003eWide-field imaging at f\/4 with the optional 0.6x reducer — excellent for large nebulae and star-forming regions\u003c\/li\u003e\n  \u003cli\u003eLRGB and narrowband filter imaging\u003c\/li\u003e\n  \u003cli\u003eVisual observing with 1.25\" and 2\" eyepieces or a diagonal\u003c\/li\u003e\n  \u003cli\u003eBinoviewer use (rear tube section detaches)\u003c\/li\u003e\n  \u003cli\u003eGuided astrophotography on mid-range equatorial mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRear thread:\u003c\/strong\u003e M84 female; includes 2\"\/1.25\" visual adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 1x flattener:\u003c\/strong\u003e maintains f\/6.8; corrects field curvature and coma; includes built-in 2\" filter thread and M54\/M48 adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 0.8x reducer:\u003c\/strong\u003e reduces to f\/5.4; field flattening included; M54\/M48 adapters included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 0.6x reducer:\u003c\/strong\u003e reduces to f\/4; requires rear tube detachment; M68\/M54\/M48 adapters included; ideal for wide-field imaging\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDovetail:\u003c\/strong\u003e 290mm Vixen standard; Losmandy dovetail optional\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEAF motorized focuser:\u003c\/strong\u003e Compatible with ZWO EAF and most third-party autofocusers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBinoviewer:\u003c\/strong\u003e Compatible when rear section is removed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eA \u003cstrong\u003eflattener or reducer is recommended\u003c\/strong\u003e for astrophotography with full-frame sensors; the bare OTA may show field curvature on large sensors\u003c\/li\u003e\n  \u003cli\u003eThe 0.6x reducer \u003cstrong\u003erequires detachment of the rear tube section\u003c\/strong\u003e — this is by design, not a deficiency\u003c\/li\u003e\n  \u003cli\u003eRequires a suitable \u003cstrong\u003eequatorial or GoTo mount\u003c\/strong\u003e for astrophotography; alt-az mounts for visual use only\u003c\/li\u003e\n  \u003cli\u003eNot recommended as a first telescope for beginners unfamiliar with equatorial mounts\u003c\/li\u003e\n  \u003cli\u003eAll reducers\/flatteners and EAF are sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 103APO good for beginners?\u003c\/strong\u003e\u003cbr\u003e\nIt is better suited to intermediate users who already understand polar alignment, guiding, and basic astrophotography workflows. Complete beginners may find a simpler setup more approachable first.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between the three optional correctors?\u003c\/strong\u003e\u003cbr\u003e\nThe 1x flattener keeps f\/6.8 and corrects edge aberrations. The 0.8x reducer shortens to f\/5.4 for faster exposures and wider fields. The 0.6x reducer delivers an ultra-fast f\/4 with the widest field, requiring removal of the rear tube section.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use it for visual observing?\u003c\/strong\u003e\u003cbr\u003e\nYes. The 103APO accepts 1.25\" and 2\" diagonals and eyepieces and supports binoviewer use when the rear tube is detached.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat mount do I need?\u003c\/strong\u003e\u003cbr\u003e\nLook for an equatorial mount with at least 8–12kg imaging payload. The 290mm Vixen dovetail fits most mid-range EQ mounts; a Losmandy dovetail is available for heavier-duty setups.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat cameras is it compatible with?\u003c\/strong\u003e\u003cbr\u003e\nAPS-C and full-frame cameras work well. For full-frame, pair with the 1x flattener or 0.8x reducer for flat, edge-to-edge stars.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs motorized autofocus supported?\u003c\/strong\u003e\u003cbr\u003e\nYes. The focuser is compatible with ZWO EAF and most third-party electronic autofocusers (sold separately).\u003c\/p\u003e\n\n\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\n\u003cp\u003eThe Askar 103APO is a standout value in the 100mm APO class. Its triplet optics, premium focuser, and exceptional range of optional correctors — including the rare f\/4 option — make it one of the most versatile compact astrographs available. If you're looking for a portable, capable refractor for deep-sky astrophotography and want the flexibility to shoot at f\/4, f\/5.4, or f\/6.8, the 103APO is hard to beat. Not the best choice for beginners or those without a compatible equatorial mount.\u003c\/p\u003e\n\n\u003ch2\u003eOptical Diagram Reports\u003c\/h2\u003e\n\u003cp\u003eThe following optical reports and technical diagrams are provided by Askar for the 103APO:\u003c\/p\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/4762e8b7-2864-4eb1-abbe-73c85901a578.jpg\" alt=\"Askar 103APO Optical Path Diagram showing triplet lens element configuration\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/5641f5ef-6fd6-4aaa-9405-9914eef55a55.jpg\" alt=\"Askar 103APO Spot Diagram with 1x Flattener\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/b2514716-d145-42d0-8ed0-66b9450d9ac7.jpg\" alt=\"Askar 103APO Spot Diagram with 0.8x Reducer\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/16dafd4c-e367-4689-92e5-e3f9f444acc4.jpg\" alt=\"Askar 103APO Spot Diagram with 0.6x Reducer\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/b56e16a0-7774-4019-83d3-5440c60a6e46.jpg\" alt=\"Askar 103APO Product Size Diagram\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/76104d42-e25d-4a5e-8de3-e82d81d42fb5.jpg\" alt=\"Askar 103APO Connection Diagram\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/ea041ee5-da40-4df3-ac57-43702506c5cd.jpg\" alt=\"Askar 103APO Segmented Lens Tube Detachment Diagram\" style=\"max-width:100%;margin-bottom:12px;\"\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":44014112079983,"sku":"103APO","price":1678.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/APO103-d__91289.png?v=1766571661"},{"product_id":"askar-120apo-triplet-apo-refractor-telescope","title":"Askar 120APO Triplet APO Refractor Telescope","description":"\u003cp\u003eThe \u003cstrong\u003eAskar 120APO\u003c\/strong\u003e is a premium 120mm aperture, f\/7 triplet air-spaced apochromatic refractor designed and manufactured by Askar (Jiaxing Sharpstar Optical Instrument Co., Ltd.). Built specifically for serious astrophotography and high-quality visual observation, the 120APO brings together large-aperture optics, a purpose-built imaging focuser, and a robust mechanical package — all in a surprisingly portable form factor. With a focal length of 840mm and a limiting magnitude of 12.2, this telescope is engineered to capture deep, detailed images of galaxies, nebulae, and star clusters.\u003c\/p\u003e\n\n\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\n\u003cp\u003eThe Askar 120APO is ideal for \u003cstrong\u003eintermediate to advanced astrophotographers\u003c\/strong\u003e who want a large-aperture APO refractor capable of illuminating full-frame sensors. It suits:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeep-sky imagers\u003c\/strong\u003e pursuing nebulae, galaxy clusters, and extended DSOs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-use users\u003c\/strong\u003e who want both a serious imaging platform and a capable visual telescope\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePortable observatory builders\u003c\/strong\u003e who need a high-performance instrument that doesn't require a massive mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVisual observers\u003c\/strong\u003e seeking a wide-field, colour-corrected view of the night sky through 1.25\" or 2\" eyepieces or a binoviewer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is not a beginner scope — it is best suited to users who already have experience with equatorial mounts and astrophotography workflows.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e120mm f\/7 triplet APO optics\u003c\/strong\u003e with one element of ED glass for outstanding chromatic aberration correction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e36% larger aperture area\u003c\/strong\u003e than the Askar 103APO — more light, more detail, more contrast\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLimiting magnitude of 12.2\u003c\/strong\u003e — revealing objects invisible to smaller refractors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3.3\" dual-speed rack-and-pinion focuser\u003c\/strong\u003e with 1:10 fine-focus ratio and 10cm of travel — smooth, precise, and rock-solid under imaging loads\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e360° high-precision rotator\u003c\/strong\u003e with locking scale markings — frame your target without touching the mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo-section segmented lens tube\u003c\/strong\u003e — rear section detaches for binoviewer use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo finder scope bases\u003c\/strong\u003e (one on each side of the focuser) for flexible accessory mounting without disassembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e290mm extended Vixen dovetail plate\u003c\/strong\u003e compatible with virtually all equatorial mounts; optional Losmandy plate available\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRetractable dew shield\u003c\/strong\u003e with enlarged CNC locking screws for fast, tool-free operation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTotal weight of just 6.5kg\u003c\/strong\u003e (including tube rings and dovetail) — portable enough for field use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEAF-compatible focuser\u003c\/strong\u003e — ready for motorized autofocus\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnique identification name ring\u003c\/strong\u003e on every unit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 1x flattener and 0.8x reducer\u003c\/strong\u003e available separately for full-frame flat-field imaging or wider, faster coverage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDeep-sky astrophotography with monochrome or one-shot colour cameras (APS-C and full-frame)\u003c\/li\u003e\n  \u003cli\u003eNarrowband imaging of emission nebulae, supernova remnants, and HII regions\u003c\/li\u003e\n  \u003cli\u003eLRGB and SHO filter imaging setups\u003c\/li\u003e\n  \u003cli\u003eGalaxy and star cluster photography where resolution and contrast are critical\u003c\/li\u003e\n  \u003cli\u003eHigh-quality visual observing with 1.25\" or 2\" eyepieces or a diagonal\u003c\/li\u003e\n  \u003cli\u003eBinoviewer use (rear tube section detaches to achieve correct backfocus)\u003c\/li\u003e\n  \u003cli\u003eMotorized autofocus with ZWO EAF and compatible focuser motors\u003c\/li\u003e\n  \u003cli\u003eDual-scope or guide scope setups — dual finder bases allow flexible mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRear thread:\u003c\/strong\u003e M84 female thread; includes 2\"\/1.25\" visual adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional flattener:\u003c\/strong\u003e Askar 120APO 1x Full-Frame Flattener — maintains f\/7, corrects field curvature and coma, includes built-in filter threads and M54\/M48 adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional reducer:\u003c\/strong\u003e Askar 120APO 0.8x Full-Frame Reducer — brings focal ratio to f\/5.6 for faster imaging; includes field flattening, built-in filter threads, and M54\/M48 adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDovetail:\u003c\/strong\u003e 290mm Vixen-style standard; Losmandy dovetail optional\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotorized focuser:\u003c\/strong\u003e Compatible with ZWO EAF and most third-party motorized focusers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBinoviewer compatibility:\u003c\/strong\u003e Rear tube section detaches to achieve correct backfocus for binoviewers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCamera compatibility:\u003c\/strong\u003e Suitable for APS-C and full-frame sensors (with flattener or reducer)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eA \u003cstrong\u003ededicated field flattener or reducer is recommended\u003c\/strong\u003e for full-frame astrophotography — the bare OTA may exhibit field curvature at the edges on large sensors\u003c\/li\u003e\n  \u003cli\u003eRequires an \u003cstrong\u003eequatorial or GoTo mount\u003c\/strong\u003e rated for at least 10–15kg payload for astrophotography; alt-az mounts are suitable for visual use only\u003c\/li\u003e\n  \u003cli\u003eThis is an \u003cstrong\u003eadvanced instrument\u003c\/strong\u003e — not recommended for first-time telescope buyers without prior astrophotography experience\u003c\/li\u003e\n  \u003cli\u003eEAF motorized focuser, Losmandy dovetail, filters, and reducers\/flatteners are \u003cstrong\u003esold separately\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eThe optional reducer\/flattener accessories use M54\/M48 threads — confirm your camera adapter compatibility before purchasing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Askar 120APO good for beginners?\u003c\/strong\u003e\u003cbr\u003e\nNot ideally. This telescope is best matched to intermediate or advanced astrophotographers who are already comfortable with equatorial mounts, imaging software, and polar alignment. Beginners will find better value in a smaller, more forgiving APO.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the Askar 120APO best used for?\u003c\/strong\u003e\u003cbr\u003e\nIt excels at deep-sky astrophotography — especially nebulae, galaxies, and star clusters. It is also a capable visual telescope for those who want a premium refractor experience.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo I need a flattener or reducer for astrophotography?\u003c\/strong\u003e\u003cbr\u003e\nFor APS-C sensors, the bare OTA often performs well. For full-frame sensors, the optional 1x flattener is recommended to eliminate edge field curvature. The 0.8x reducer is ideal when you want a wider field of view and faster f\/5.6 exposures.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat mounts is it compatible with?\u003c\/strong\u003e\u003cbr\u003e\nThe included 290mm Vixen dovetail plate fits most equatorial mounts. An optional Losmandy dovetail is available for heavier-duty mounts. Look for mounts with at least a 10–15kg imaging payload capacity.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use it for visual observing?\u003c\/strong\u003e\u003cbr\u003e\nYes. The 120APO accepts 1.25\" and 2\" diagonals and eyepieces, and the segmented tube allows binoviewer use. It is a capable and pleasurable visual instrument, not just an imaging platform.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat makes it different from the Askar 103APO?\u003c\/strong\u003e\u003cbr\u003e\nThe 120APO has 36% more aperture area than the 103APO, pushing the limiting magnitude to 12.2. The 3.3\" focuser is larger and more rigid, and the overall mechanical package is designed for heavier imaging loads.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs motorized autofocus supported?\u003c\/strong\u003e\u003cbr\u003e\nYes. The focuser is designed for compatibility with ZWO EAF and most third-party electronic autofocusers. EAF is sold separately.\u003c\/p\u003e\n\n\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\n\u003cp\u003eThe Askar 120APO is one of the most well-rounded large-aperture refractors available in its price class. It delivers true apochromatic correction, a premium imaging focuser, and a thoughtful mechanical design in a package that's still portable enough for field use. If you're an intermediate or advanced astrophotographer looking to step up to a 120mm APO platform with serious full-frame capability, the 120APO is an outstanding choice. Pair it with the optional 1x flattener for clean flat-field images, or the 0.8x reducer for a wider, faster setup. Not recommended for beginners or those without a suitable equatorial mount.\u003c\/p\u003e\n\n\u003ch2\u003eOptical Diagram Reports\u003c\/h2\u003e\n\u003cp\u003eThe following optical reports and technical diagrams are provided by Askar for the 120APO:\u003c\/p\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/ad346366-5e30-4faa-83ee-649f0300e265.jpg\" alt=\"Askar 120APO Optical Path Diagram showing triplet APO lens element configuration\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/2229efdb-a906-4d49-9c69-c1e741021fed.jpg\" alt=\"Askar 120APO Spot Diagram showing star point quality across the image field\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/c5d3bffb-5543-41e8-912f-95be0088f51b.jpg\" alt=\"Askar 120APO Product Size Diagram with full mechanical dimensions\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/b43e44b4-27c1-4eef-a33b-980f866a205d.jpg\" alt=\"Askar 120APO Connection Diagram showing rear thread and adapter options\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/98c87463-b6cd-40a5-add0-ef3c117ec850.jpg\" alt=\"Askar 120APO Segmented Lens Tube Detachment Diagram for binoviewer use\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/823f51ad-23b8-46a9-872c-9266e00911a5.jpg\" alt=\"Askar 120APO ZWO EAF Installation Diagram for motorized autofocus setup\" style=\"max-width:100%;margin-bottom:12px;\"\u003e","brand":"Askar","offers":[{"title":"Default","offer_id":53155868475503,"sku":"120APO","price":2378.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/120apoa.webp?v=1779735453"},{"product_id":"askar-103apo-triplet-apo-refractor-telescope","title":"Askar 103APO Triplet APO Refractor Telescope","description":"\u003cp\u003eThe \u003cstrong\u003eAskar 103APO\u003c\/strong\u003e is a 103mm aperture, f\/6.8 triplet air-spaced apochromatic refractor designed and manufactured by Askar (Jiaxing Sharpstar Optical Instrument Co., Ltd.). Purpose-built for astrophotography, the 103APO combines a compact, lightweight form factor with a high-performance triplet APO objective that includes one element of ED glass — all at a price point that makes serious imaging accessible to more astronomers.\u003c\/p\u003e\n\n\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\n\u003cp\u003eThe Askar 103APO is best suited for \u003cstrong\u003eintermediate to advanced astrophotographers\u003c\/strong\u003e who want a compact yet capable APO refractor for deep-sky imaging. It is also an excellent choice for:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeep-sky imagers\u003c\/strong\u003e targeting nebulae, galaxies, and star clusters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-use users\u003c\/strong\u003e who want a telescope capable of both imaging and visual observation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTravellers and portable rig builders\u003c\/strong\u003e needing a lightweight, packable APO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVisual observers\u003c\/strong\u003e who want a high-quality, colour-corrected refractor with 1.25\"\/2\" eyepiece support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e103mm f\/6.8 triplet APO optics\u003c\/strong\u003e with one ED glass element — superior chromatic aberration correction versus standard doublets\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThree optional correctors\u003c\/strong\u003e: 1x flattener (f\/6.8), 0.8x reducer (f\/5.4), and 0.6x reducer (f\/4) — giving the 103APO one of the widest range of focal ratios in its class\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDetachable two-section lens tube\u003c\/strong\u003e — enables the 0.6x reducer and binoviewer use without additional adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3.3\" dual-speed rack-and-pinion focuser\u003c\/strong\u003e with 1:10 fine-focus adjustment and 10cm travel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e360° high-precision rotator\u003c\/strong\u003e with locking scale for repeatable framing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo finder scope bases\u003c\/strong\u003e — one on each side of the focuser for flexible accessory mounting\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e290mm extended Vixen dovetail plate\u003c\/strong\u003e — compatible with most equatorial mounts; optional Losmandy plate available\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMatting felt interior dew shield and baffled tube interior\u003c\/strong\u003e for maximum stray light reduction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEAF-compatible focuser\u003c\/strong\u003e for motorized autofocus\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight at just 5.5kg gross\u003c\/strong\u003e (including rings and dovetail)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnique identification name ring\u003c\/strong\u003e on every unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDeep-sky astrophotography with APS-C and full-frame cameras\u003c\/li\u003e\n  \u003cli\u003eWide-field imaging at f\/4 with the optional 0.6x reducer — excellent for large nebulae and star-forming regions\u003c\/li\u003e\n  \u003cli\u003eLRGB and narrowband filter imaging\u003c\/li\u003e\n  \u003cli\u003eVisual observing with 1.25\" and 2\" eyepieces or a diagonal\u003c\/li\u003e\n  \u003cli\u003eBinoviewer use (rear tube section detaches)\u003c\/li\u003e\n  \u003cli\u003eGuided astrophotography on mid-range equatorial mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRear thread:\u003c\/strong\u003e M84 female; includes 2\"\/1.25\" visual adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 1x flattener:\u003c\/strong\u003e maintains f\/6.8; corrects field curvature and coma; includes built-in 2\" filter thread and M54\/M48 adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 0.8x reducer:\u003c\/strong\u003e reduces to f\/5.4; field flattening included; M54\/M48 adapters included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 0.6x reducer:\u003c\/strong\u003e reduces to f\/4; requires rear tube detachment; M68\/M54\/M48 adapters included; ideal for wide-field imaging\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDovetail:\u003c\/strong\u003e 290mm Vixen standard; Losmandy dovetail optional\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEAF motorized focuser:\u003c\/strong\u003e Compatible with ZWO EAF and most third-party autofocusers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBinoviewer:\u003c\/strong\u003e Compatible when rear section is removed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eA \u003cstrong\u003eflattener or reducer is recommended\u003c\/strong\u003e for astrophotography with full-frame sensors; the bare OTA may show field curvature on large sensors\u003c\/li\u003e\n  \u003cli\u003eThe 0.6x reducer \u003cstrong\u003erequires detachment of the rear tube section\u003c\/strong\u003e — this is by design, not a deficiency\u003c\/li\u003e\n  \u003cli\u003eRequires a suitable \u003cstrong\u003eequatorial or GoTo mount\u003c\/strong\u003e for astrophotography; alt-az mounts for visual use only\u003c\/li\u003e\n  \u003cli\u003eNot recommended as a first telescope for beginners unfamiliar with equatorial mounts\u003c\/li\u003e\n  \u003cli\u003eAll reducers\/flatteners and EAF are sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 103APO good for beginners?\u003c\/strong\u003e\u003cbr\u003e\nIt is better suited to intermediate users who already understand polar alignment, guiding, and basic astrophotography workflows. Complete beginners may find a simpler setup more approachable first.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between the three optional correctors?\u003c\/strong\u003e\u003cbr\u003e\nThe 1x flattener keeps f\/6.8 and corrects edge aberrations. The 0.8x reducer shortens to f\/5.4 for faster exposures and wider fields. The 0.6x reducer delivers an ultra-fast f\/4 with the widest field, requiring removal of the rear tube section.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use it for visual observing?\u003c\/strong\u003e\u003cbr\u003e\nYes. The 103APO accepts 1.25\" and 2\" diagonals and eyepieces and supports binoviewer use when the rear tube is detached.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat mount do I need?\u003c\/strong\u003e\u003cbr\u003e\nLook for an equatorial mount with at least 8–12kg imaging payload. The 290mm Vixen dovetail fits most mid-range EQ mounts; a Losmandy dovetail is available for heavier-duty setups.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat cameras is it compatible with?\u003c\/strong\u003e\u003cbr\u003e\nAPS-C and full-frame cameras work well. For full-frame, pair with the 1x flattener or 0.8x reducer for flat, edge-to-edge stars.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs motorized autofocus supported?\u003c\/strong\u003e\u003cbr\u003e\nYes. The focuser is compatible with ZWO EAF and most third-party electronic autofocusers (sold separately).\u003c\/p\u003e\n\n\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\n\u003cp\u003eThe Askar 103APO is a standout value in the 100mm APO class. Its triplet optics, premium focuser, and exceptional range of optional correctors — including the rare f\/4 option — make it one of the most versatile compact astrographs available. If you're looking for a portable, capable refractor for deep-sky astrophotography and want the flexibility to shoot at f\/4, f\/5.4, or f\/6.8, the 103APO is hard to beat. Not the best choice for beginners or those without a compatible equatorial mount.\u003c\/p\u003e\n\n\u003ch2\u003eOptical Diagram Reports\u003c\/h2\u003e\n\u003cp\u003eThe following optical reports and technical diagrams are provided by Askar for the 103APO:\u003c\/p\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/4762e8b7-2864-4eb1-abbe-73c85901a578.jpg\" alt=\"Askar 103APO Optical Path Diagram showing triplet lens element configuration\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/5641f5ef-6fd6-4aaa-9405-9914eef55a55.jpg\" alt=\"Askar 103APO Spot Diagram with 1x Flattener showing star point quality across the image field\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/b2514716-d145-42d0-8ed0-66b9450d9ac7.jpg\" alt=\"Askar 103APO Spot Diagram with 0.8x Reducer\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/16dafd4c-e367-4689-92e5-e3f9f444acc4.jpg\" alt=\"Askar 103APO Spot Diagram with 0.6x Reducer\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/b56e16a0-7774-4019-83d3-5440c60a6e46.jpg\" alt=\"Askar 103APO Product Size Diagram with full mechanical dimensions\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/76104d42-e25d-4a5e-8de3-e82d81d42fb5.jpg\" alt=\"Askar 103APO Connection Diagram showing rear thread and adapter options\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/ea041ee5-da40-4df3-ac57-43702506c5cd.jpg\" alt=\"Askar 103APO Segmented Lens Tube Detachment Diagram for 0.6x reducer and binoviewer\" style=\"max-width:100%;margin-bottom:12px;\"\u003e","brand":"Askar","offers":[{"title":"Default","offer_id":53155869327471,"sku":"103APO","price":1678.6,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/103apoa.webp?v=1779735640"},{"product_id":"askar-140apo-triplet-apo-refractor-telescope","title":"Askar 140APO Triplet APO Refractor Telescope","description":"\u003cp\u003eThe \u003cstrong\u003eAskar 140APO\u003c\/strong\u003e is a large-aperture 140mm f\/7 triplet air-spaced apochromatic refractor from Askar (Jiaxing Sharpstar Optical Instrument Co., Ltd.). Designed to serve both serious amateur astrophotographers and professional imagers, the 140APO steps up aperture, light-gathering power, and focuser size compared to smaller APO models in the series, while incorporating a clever retractable lens tube design that keeps overall length manageable. With a limiting magnitude of 12.5 and a 980mm focal length, this telescope excels at deep, detailed imaging of galaxies, nebulae, and star clusters.\u003c\/p\u003e\n\n\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced astrophotographers\u003c\/strong\u003e who need serious light-gathering power in a refractor platform\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-use observers\u003c\/strong\u003e wanting premium image quality both at the eyepiece and through a camera\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeep-sky imagers\u003c\/strong\u003e targeting galaxies, emission nebulae, and large-format DSOs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eObservatory users\u003c\/strong\u003e seeking a premium refractor for a permanent or semi-permanent setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e140mm f\/7 triplet APO optics\u003c\/strong\u003e with one ED glass element for outstanding chromatic correction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLimiting magnitude of 12.5\u003c\/strong\u003e — captures fainter objects with more detail than smaller APOs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated retractable rear lens tube\u003c\/strong\u003e (125mm extension) with rudder-type locking ring — enables binoviewer use when contracted, full imaging with flattener\/reducer when extended\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3.5\" dual-speed rack-and-pinion focuser\u003c\/strong\u003e with 1:10 fine adjustment and 10cm travel — larger and more rigid than the 3.3\" focuser on smaller models\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e360° high-precision rotator\u003c\/strong\u003e with locking scale for frame rotation without disturbing the mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e300mm Losmandy dovetail plate included\u003c\/strong\u003e — ideal for heavy equatorial mounts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo finder scope bases\u003c\/strong\u003e on either side of the focuser\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEAF-compatible focuser\u003c\/strong\u003e for motorized autofocus integration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePortable despite its size\u003c\/strong\u003e — shortest overall length 735mm; gross weight 10.9kg\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 1x flattener (f\/7) and 0.8x reducer (f\/5.6)\u003c\/strong\u003e — both include built-in 2\" filter threads and adapter sets\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnique identification name ring\u003c\/strong\u003e on every unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDeep-sky astrophotography with APS-C and full-frame cameras\u003c\/li\u003e\n  \u003cli\u003eHigh-resolution galaxy and nebula imaging where aperture and resolution matter\u003c\/li\u003e\n  \u003cli\u003eLRGB, narrowband, and SHO filter imaging\u003c\/li\u003e\n  \u003cli\u003eVisual observing with 1.25\" or 2\" eyepieces and diagonals\u003c\/li\u003e\n  \u003cli\u003eBinoviewer use (rear tube contracted)\u003c\/li\u003e\n  \u003cli\u003eWide-field imaging with the 0.8x reducer at f\/5.6\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRear thread:\u003c\/strong\u003e M84 female; includes 2\"\/1.25\" visual adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 1x flattener:\u003c\/strong\u003e maintains f\/7; corrects field curvature and coma; 2\" filter thread + M68\/M54\/M48 adapters included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 0.8x reducer:\u003c\/strong\u003e reduces to f\/5.6; field flattening included; 2\" filter thread + M54\/M48 adapters included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDovetail:\u003c\/strong\u003e 300mm Losmandy standard (included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEAF:\u003c\/strong\u003e Compatible with ZWO EAF and most motorized focusers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBinoviewer:\u003c\/strong\u003e Rear tube contracts for binoviewer compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAt 10.9kg gross weight, requires a \u003cstrong\u003ehigh-payload equatorial mount\u003c\/strong\u003e — look for at least 15–20kg imaging capacity for stable astrophotography\u003c\/li\u003e\n  \u003cli\u003eA \u003cstrong\u003eflattener or reducer is strongly recommended\u003c\/strong\u003e for full-frame astrophotography\u003c\/li\u003e\n  \u003cli\u003eNot recommended for beginners; best matched to users with EQ mount and imaging experience\u003c\/li\u003e\n  \u003cli\u003eFlattener, reducer, EAF, and additional accessories are all sold separately\u003c\/li\u003e\n  \u003cli\u003eReducer\/flattener adapters use M68\/M54\/M48 threads — confirm camera adapter compatibility before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the 140APO compare to the 120APO?\u003c\/strong\u003e\u003cbr\u003e\nThe 140APO offers a 36% larger aperture area, deeper limiting magnitude (12.5 vs 12.2), a larger 3.5\" focuser, and an integrated retractable tube design. It requires a heavier mount but delivers more resolution and contrast on faint objects.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat mount do I need?\u003c\/strong\u003e\u003cbr\u003e\nThe 140APO ships with a 300mm Losmandy dovetail. Look for a mount with at least 15–20kg imaging payload — for example, a Skywatcher EQ6-R, iOptron CEM70, or equivalent.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the retractable tube design stable?\u003c\/strong\u003e\u003cbr\u003e\nYes. Askar engineered the retractable rear tube for rigidity — the optical axis is not affected when the tube is extended, and the rudder-type locking ring secures it firmly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use it for visual observing?\u003c\/strong\u003e\u003cbr\u003e\nAbsolutely. With the rear tube contracted, connect 1.25\" or 2\" diagonals and eyepieces. It is also binoviewer compatible.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat cameras is it compatible with?\u003c\/strong\u003e\u003cbr\u003e\nAPS-C and full-frame sensors. For full-frame, pair with the optional 1x flattener for sharp stars edge-to-edge.\u003c\/p\u003e\n\n\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\n\u003cp\u003eThe Askar 140APO is a serious step up for astrophotographers who have outgrown smaller APOs and need more aperture and resolution. Its retractable tube, Losmandy dovetail, large 3.5\" focuser, and deep limiting magnitude make it ideal for high-end imaging setups. Choose it if you have a suitable heavy-payload mount and want one of the best mid-large refractors available at its price point. Not recommended for beginners or those with mounts rated below 15kg imaging payload.\u003c\/p\u003e\n\n\u003ch2\u003eOptical Diagram Reports\u003c\/h2\u003e\n\u003cp\u003eThe following optical reports and technical diagrams are provided by Askar for the 140APO:\u003c\/p\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/76c951b6-ace8-4a00-a80e-e8b78502b0d0.jpg\" alt=\"Askar 140APO Optical Path Diagram showing triplet APO lens element configuration\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/b7ee91fc-ef62-410f-b168-3e0a3de711d8.jpg\" alt=\"Askar 140APO Spot Diagram showing star point quality across the image field\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/7a0c45c2-97ce-481a-a4c3-c94128c4d6bd.jpg\" alt=\"Askar 140APO Product Size Diagram with full mechanical dimensions\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/e9fadd4e-46bc-43fd-9c71-bbe7f0b5ecd8.jpg\" alt=\"Askar 140APO Connection Diagram showing rear thread and adapter compatibility\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/71f53200-b54f-4817-97d5-8188e107c751.jpg\" alt=\"Askar 140APO retractable lens tube instruction diagram for eyepiece, flattener, and reducer use\" style=\"max-width:100%;margin-bottom:12px;\"\u003e","brand":"Askar","offers":[{"title":"Default","offer_id":53155870343279,"sku":"140APO","price":3498.6,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/140APOa.webp?v=1779736047"},{"product_id":"askar-185apo-triplet-apo-refractor-telescope","title":"Askar 185APO Triplet APO Refractor Telescope","description":"\u003cp\u003eThe \u003cstrong\u003eAskar 185APO\u003c\/strong\u003e is a premium large-aperture 185mm f\/7 triplet air-spaced apochromatic refractor from Askar (Jiaxing Sharpstar Optical Instrument Co., Ltd.). As one of the most capable refractors in the APO series, the 185APO fills a genuine market gap — delivering the light-gathering power and resolution of a large-aperture instrument with the optical quality of a true APO design, at a price point that remains competitive for its class. With a limiting magnitude of 13.1 and a 1295mm focal length, it is purpose-built for serious deep-sky imaging.\u003c\/p\u003e\n\n\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced and professional-level astrophotographers\u003c\/strong\u003e who need maximum aperture in a premium refractor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eObservatory users\u003c\/strong\u003e with permanent or semi-permanent imaging setups\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-resolution imagers\u003c\/strong\u003e targeting galaxies, globular clusters, and fine nebula structure\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-use observers\u003c\/strong\u003e who want the finest visual experience alongside imaging capability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e185mm f\/7 triplet APO optics\u003c\/strong\u003e with one ED glass element — exceptional colour correction at this aperture class\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLimiting magnitude of 13.1\u003c\/strong\u003e — significant gain over smaller APOs in the series\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated retractable rear lens tube\u003c\/strong\u003e (95mm) with rudder-type locking ring — contracts for binoviewer use, extends for imaging with flattener or reducer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3.5\" dual-speed rack-and-pinion focuser\u003c\/strong\u003e with 1:10 fine adjustment, 100mm travel, CNC machined anti-reflective interior\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e360° high-precision rotator\u003c\/strong\u003e with locking scale\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e400mm Losmandy dovetail plate included\u003c\/strong\u003e for heavy equatorial mounts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended 400mm handle\u003c\/strong\u003e with slot design for finder scope or accessory mounting\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo finder scope bases\u003c\/strong\u003e flanking the focuser\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEAF-compatible focuser\u003c\/strong\u003e for motorized autofocus\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eShips in a protective aluminum case\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 1x flattener (f\/7) and 0.8x reducer (f\/5.6)\u003c\/strong\u003e — both include built-in 2\" filter threads and M68\/M54\/M48 adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnique identification name ring\u003c\/strong\u003e on every unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-resolution deep-sky astrophotography with full-frame monochrome and OSC cameras\u003c\/li\u003e\n  \u003cli\u003eGalaxy imaging where 1295mm focal length and 185mm aperture deliver extraordinary detail\u003c\/li\u003e\n  \u003cli\u003eLRGB, narrowband, and SHO imaging of emission nebulae, supernova remnants, and star clusters\u003c\/li\u003e\n  \u003cli\u003eVisual observing with 1.25\" or 2\" eyepieces and diagonals\u003c\/li\u003e\n  \u003cli\u003eBinoviewer use (rear tube contracted)\u003c\/li\u003e\n  \u003cli\u003eWide-field imaging with the optional 0.8x reducer at f\/5.6\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRear thread:\u003c\/strong\u003e M84 female; includes 2\"\/1.25\" visual adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 1x flattener:\u003c\/strong\u003e maintains f\/7; corrects field curvature and coma; includes 2\" filter thread and M68\/M54\/M48 adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional 0.8x reducer:\u003c\/strong\u003e reduces to f\/5.6; field flattening included; M68\/M54\/M48 adapters included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDovetail:\u003c\/strong\u003e 400mm Losmandy standard (included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEAF:\u003c\/strong\u003e Compatible with ZWO EAF and most motorized focusers (sold separately)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBinoviewer:\u003c\/strong\u003e Rear tube contracts for compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAt 17.2kg gross weight, requires a \u003cstrong\u003every high-payload equatorial mount\u003c\/strong\u003e — 25kg+ imaging capacity recommended\u003c\/li\u003e\n  \u003cli\u003eA \u003cstrong\u003eflattener is strongly recommended\u003c\/strong\u003e for full-frame astrophotography\u003c\/li\u003e\n  \u003cli\u003eStrictly an \u003cstrong\u003eadvanced instrument\u003c\/strong\u003e — not suitable for beginners or portable setups\u003c\/li\u003e\n  \u003cli\u003eFlattener, reducer, EAF, and accessories are all sold separately\u003c\/li\u003e\n  \u003cli\u003eBest suited to observatory or permanent pier installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the 185APO compare to the 160APO?\u003c\/strong\u003e\u003cbr\u003e\nThe 185APO has a 34% larger aperture area, a longer 1295mm focal length, a heavier gross weight of 17.2kg, and a deeper limiting magnitude of 13.1 vs the 160APO's approximately 12.7. It requires an even more substantial mount and is best reserved for observatory setups.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat mount do I need?\u003c\/strong\u003e\u003cbr\u003e\nLook for mounts rated at 25kg or more imaging payload — for example, a Skywatcher EQ8-R, iOptron CEM120, or equivalent direct-drive or gear-driven heavy mount. The 400mm Losmandy dovetail provides ample balance range.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo I need a flattener for astrophotography?\u003c\/strong\u003e\u003cbr\u003e\nFor full-frame sensors, yes. The optional 1x flattener is essential for sharp, flat stars edge-to-edge. The 0.8x reducer delivers a wider field and f\/5.6 for faster exposures, and also provides field flattening.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use it for visual observing?\u003c\/strong\u003e\u003cbr\u003e\nYes. It accepts 1.25\" and 2\" diagonals and eyepieces, and supports binoviewer use when the rear tube is contracted.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs motorized autofocus supported?\u003c\/strong\u003e\u003cbr\u003e\nYes — the focuser is EAF-compatible with ZWO EAF and most third-party motorized focusers (sold separately).\u003c\/p\u003e\n\n\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\n\u003cp\u003eThe Askar 185APO is an exceptional instrument for advanced astrophotographers who want the performance of a large-aperture refractor without compromise. Its limiting magnitude of 13.1, premium triplet APO optics, and full mechanical package make it ideal for permanent observatory setups where resolving faint galaxies, delicate nebula structure, and fine star clusters is the primary mission. This telescope demands a very capable mount and an experienced operator — and rewards both with outstanding results. Not recommended for beginners, travel rigs, or small mounts.\u003c\/p\u003e\n\n\u003ch2\u003eOptical Diagram Reports\u003c\/h2\u003e\n\u003cp\u003eThe following optical reports and technical diagrams are provided by Askar for the 185APO:\u003c\/p\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/c2b4bea2-0f12-43c1-9e93-7d7c2abccaf6.jpg\" alt=\"Askar 185APO Optical Path Diagram showing triplet APO lens element configuration\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/e2b30ed3-eeee-4737-8da6-ce6ec4819809.jpg\" alt=\"Askar 185APO Spot Diagram showing star point quality across the image field\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/0855437b-88bb-4bf3-a94b-6e7387b2169a.jpg\" alt=\"Askar 185APO Product Size Diagram\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/0e9b7394-b105-4101-a09f-731375be6400.jpg\" alt=\"Askar 185APO Connection Diagram\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/9dc66b20-ddfc-42ae-b420-144571baef1b.jpg\" alt=\"Askar 185APO retractable lens tube instruction diagram\" style=\"max-width:100%;margin-bottom:12px;\"\u003e","brand":"Askar","offers":[{"title":"Default","offer_id":53155880763503,"sku":"185APO","price":7390.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/185apo1.webp?v=1779736041"},{"product_id":"askar-203apo-triplet-apo-refractor-telescope","title":"Askar 203APO Triplet APO Refractor Telescope","description":"\u003cp\u003eThe \u003cstrong\u003eAskar 203APO\u003c\/strong\u003e is the flagship of the Askar APO series — an eight-inch (203mm) aperture, f\/7 triplet air-spaced apochromatic refractor from Askar (Jiaxing Sharpstar Optical Instrument Co., Ltd.). With a 1421mm focal length and a limiting magnitude of 13.3, the 203APO represents the pinnacle of what Askar has achieved in large-aperture refractor design, combining exceptional optical performance with a well-thought-out mechanical package that manages the weight and size challenges of this aperture class.\u003c\/p\u003e\n\n\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProfessional and elite-level astrophotographers\u003c\/strong\u003e who demand the absolute maximum from a refractor platform\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eObservatory operators\u003c\/strong\u003e with permanent pier setups and heavy-payload mounts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-resolution galaxy, globular cluster, and planetary nebula imagers\u003c\/strong\u003e where aperture and focal length are everything\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced visual observers\u003c\/strong\u003e seeking the finest large-aperture refractor experience available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e203mm (8\") f\/7 triplet APO optics\u003c\/strong\u003e with one ED glass element — extraordinary light-gathering power with true APO colour correction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLimiting magnitude of 13.3\u003c\/strong\u003e — the deepest in the Askar APO series; 20% larger aperture area than the 185APO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated retractable rear lens tube\u003c\/strong\u003e (150mm) with rudder-type locking ring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3.5\" dual-speed rack-and-pinion focuser\u003c\/strong\u003e with 1:10 fine adjustment, 100mm travel, CNC machined anti-reflective interior\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e360° high-precision rotator\u003c\/strong\u003e with locking scale\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e500mm Losmandy dovetail plate included\u003c\/strong\u003e — the longest in the APO series, providing maximum balance flexibility\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended 402mm handle\u003c\/strong\u003e with slot design for finder scope or accessory mounting\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnhanced triplet tube ring design\u003c\/strong\u003e for maximum rigidity under heavy loads\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo finder scope bases\u003c\/strong\u003e flanking the focuser\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEAF-compatible focuser\u003c\/strong\u003e for motorized autofocus\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eShips in a protective aluminum case\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnique identification name ring\u003c\/strong\u003e on every unit\u003c\/li\u003e\n  \u003cli\u003eDedicated optional reducer and flattener accessories planned for future release\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eElite-level high-resolution deep-sky astrophotography with full-frame cameras\u003c\/li\u003e\n  \u003cli\u003eGalaxy imaging where 1421mm focal length and 203mm aperture reveal fine structural detail\u003c\/li\u003e\n  \u003cli\u003ePlanetary nebulae, globular clusters, and fine-structure emission nebula imaging\u003c\/li\u003e\n  \u003cli\u003eLRGB and narrowband filter imaging at extreme resolution\u003c\/li\u003e\n  \u003cli\u003eVisual observing with 1.25\" or 2\" eyepieces and diagonals\u003c\/li\u003e\n  \u003cli\u003eBinoviewer use (rear tube contracted)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRear thread:\u003c\/strong\u003e M84 female; includes 2\"\/1.25\" visual adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDovetail:\u003c\/strong\u003e 500mm Losmandy standard (included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEAF:\u003c\/strong\u003e Compatible with ZWO EAF and most motorized focusers (sold separately)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBinoviewer:\u003c\/strong\u003e Rear tube contracts for compatibility\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional reducer and flattener:\u003c\/strong\u003e Dedicated 203APO correctors are planned for future release by Askar\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAt 23.5kg gross weight, requires an \u003cstrong\u003eextremely high-payload equatorial mount\u003c\/strong\u003e — 30kg+ imaging capacity is strongly recommended\u003c\/li\u003e\n  \u003cli\u003eThis is a \u003cstrong\u003epermanent observatory instrument\u003c\/strong\u003e — not suitable for portable use, travel, or small mounts\u003c\/li\u003e\n  \u003cli\u003eDedicated reducer and flattener accessories are \u003cstrong\u003enot yet available\u003c\/strong\u003e at time of listing — monitor Askar for release\u003c\/li\u003e\n  \u003cli\u003eStrictly for \u003cstrong\u003eexpert-level users\u003c\/strong\u003e with substantial astrophotography experience\u003c\/li\u003e\n  \u003cli\u003eEAF and all accessories sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the 203APO compare to the 185APO?\u003c\/strong\u003e\u003cbr\u003e\nThe 203APO has 20% more aperture area, a deeper limiting magnitude of 13.3, a longer 1421mm focal length, a heavier 23.5kg gross weight, and a larger 500mm Losmandy dovetail. It requires the most capable mounts and is strictly an observatory-class instrument.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat mount do I need?\u003c\/strong\u003e\u003cbr\u003e\nAt 23.5kg gross, look for mounts with 30kg+ imaging payload — for example, a Skywatcher EQ8-R Pro, iOptron CEM120EC, Software Bisque Paramount, or similar observatory-grade mount. The 500mm Losmandy dovetail offers excellent balance range for this heavy OTA.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre there reducers or flatteners available?\u003c\/strong\u003e\u003cbr\u003e\nAskar has indicated that dedicated 203APO correctors are planned for future release. At the time of this listing, none are yet available. Please check with us for current availability.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use it for visual observing?\u003c\/strong\u003e\u003cbr\u003e\nYes. The focuser accepts 1.25\" and 2\" diagonals and eyepieces. The rear tube contracts for binoviewer use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs motorized autofocus supported?\u003c\/strong\u003e\u003cbr\u003e\nYes — the focuser is compatible with ZWO EAF and most third-party motorized autofocusers (sold separately).\u003c\/p\u003e\n\n\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\n\u003cp\u003eThe Askar 203APO is the ultimate expression of the APO series — an eight-inch apochromatic refractor that delivers extraordinary resolution, depth, and optical quality in a highly refined mechanical package. If you operate a permanent observatory with a mount capable of handling 23.5kg+, and you want the finest refractor in this aperture class, the 203APO is a genuinely exceptional choice. Be aware that dedicated corrector accessories are not yet available, so this telescope is currently best used at its native f\/7. Not suitable for beginners, portable rigs, or mounts with less than 30kg imaging payload.\u003c\/p\u003e\n\n\u003ch2\u003eOptical Diagram Reports\u003c\/h2\u003e\n\u003cp\u003eThe following optical reports and technical diagrams are provided by Askar for the 203APO:\u003c\/p\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/66691d1d-392d-4b67-9b66-a4732f6190d2.jpg\" alt=\"Askar 203APO Optical Path Diagram showing triplet APO lens element configuration\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/5f2d7d63-4c7a-4769-9bfb-033eab43cbb8.jpg\" alt=\"Askar 203APO Product Size Diagram with full mechanical dimensions\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/12134b7b-c16c-404a-ac13-8a0e52b0d6e5.jpg\" alt=\"Askar 203APO Connection Diagram\" style=\"max-width:100%;margin-bottom:12px;\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/0292f2d8-fe3c-461a-aa8a-4e473cfff802.jpg\" alt=\"Askar 203APO retractable lens tube instruction diagram\" style=\"max-width:100%;margin-bottom:12px;\"\u003e","brand":"Askar","offers":[{"title":"Default","offer_id":53155884400751,"sku":"203APO","price":12010.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/203apo1.webp?v=1779735843"}],"url":"https:\/\/ontariotelescope.com\/collections\/apo-series.oembed","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}