{"title":"FRA Series","description":"","products":[{"product_id":"askar-fra500-astrograph","title":"Askar FRA500 Astrograph","description":"\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003eAskar FRA500 is typically a wonderful mix of pragmatism and aesthetics. The astrograph shows smooth lines and a sound layout of components. From the front, the Askar FRA500 has an impressive dew shield decorated with a classic bright-red bezel ring. The total length of FRA500 is 452mm when the dew shield is stretched out and 410mm when contracted back. At the tail end of the astrograph locates a 3.5\" massively-built focuser with dual-speed hand knobs (twin knobs for coarse adjustment and one 1:10 fine adjustment knob), which is of great use in real observation or astrophotography.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003eThe astrograph wears smooth coating and is evenly finished. The graduation inside of the focuser is quite clear and easily readable. The focuser is tough and solid, and on the left side of it, there is a standard finder base with a silver thumb screw. So the FRA500 can piggyback carry finders, guiders or other potential astronomy accessories.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003eAskar FRA500 comes also with a pair of sought-after tube rings. On the top of the tube rings attached a handle and at the bottom, there is an Askar Losmandy-style dovetail plate. The combination of milk-white main tube and dew shield together with a high-gloss piano-black focuser makes the optical tube assembly calm and deep which is offset by the bright red decorative ring and tube rings.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003eThe Askar FRA500 is 410mm long and weighs about 4kg , so it’s quite convenient for users to carry around or mount on an EQ mount. It’s particularly suitable for astronomy enthusiasts who frequently engage in long-distance trips or out-door astrophotography.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003eAskar FRA500 together with the FRA- family is well received for large aperture, fast speed, delicate focusing system, unique optical design and the subsequently high-quality imaging results. Wish the Askar FRA500 be a loyal companion alongside your journey of astrophotography.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":44013705625711,"sku":"FRA500","price":2899.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/1629350823__22501.jpg?v=1766560222"},{"product_id":"askar-fra300-pro-quintuplet-astrograph","title":"Askar FRA300 Pro Quintuplet Astrograph","description":"\u003cp class=\"MsoNormal\" style=\"margin-bottom:0cm;line-height:normal\"\u003e\u003cspan style=\"font-family:\" arial new roman color:black\u003eSince their\r\ninception, Askar FRA series short focal ratio astrograph have been very well\r\nreceived by astronomical amateurs. This year, we launched the Askar FRA300 Pro —— the\r\nsmallest 60mm F\/5 Petzval astrograph with the fastest native focal ratio in the\r\nFRA series so far, its focal length is 300mm. The star is sharp and delicate.\r\nAt the center of its field of view, the RMS radius can reach 2um. Even a\r\nserious user can also be satisfied when it comes to the shape of stars. It\r\nperforms excellence with full-frame and supports 44mm imaging, which is a rare\r\nastrograph for amateur astronomers. Compared with F\/6 or F\/7,F\/5 can\r\neffectively reduce the exposure time, helps you get the same exposure in less\r\ntime. In addition, the entire OTA is compact, making it the portable choice for\r\nfield photographers.\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp class=\"MsoNormal\" style=\"margin-bottom:0cm;line-height:normal\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003eThe Askar FRA300 Pro 's\r\nobjective lens adopts a quintuplet fully air-spaced structure, including one\r\npiece of ED glass, it also adopts a fully-multi-coating to effectively remove\r\nstray light.\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp class=\"MsoNormal\" style=\"margin-bottom:0cm;line-height:normal\"\u003e\u003cspan style=\"font-family:\" arial new roman color:black\u003eIn particular, the\r\nrear group lens adopts the two pieces of far-separated refractive lenses, which\r\nimproves both the star quality and the aberration correction performance , and\r\nhas a very good control of full-frame peripheral light reduction.\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp class=\"MsoNormal\" style=\"margin-bottom:0cm;line-height:normal\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003eThanks to the\r\nnative Petzval design, the user does not need to calculate the backfocus, as\r\nlong as the focus is within a certain range is the optimal position.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\" style=\"margin-bottom:0cm;line-height:normal\"\u003e\u003cspan style=\"font-family:\" arial yahei color:black\u003e\r\n\u003cbr\u003e\r\nMechanically\u003c\/span\u003e\u003cspan style=\"font-family:\" microsoft yahei mso-ascii-font-family:arial arial\u003e,\u003c\/span\u003e\u003cspan style=\"font-family:\" arial yahei color:black\u003eFRA300 Pro is\r\nassembled with high-quality CNC-machined components , wrapped with smooth spray\r\ncoating and light oxidation process, both beautiful and practical. The tube\r\nring design is equally lightweight and stylish. Despite the increased cost, we\r\nwant enthusiasts to use the FRA300 Pro that perform well in every way and are\r\nconsidered in every detail.\u003c\/span\u003e\u003cspan style=\"font-family:\" arial mso-fareast-font-family: new roman mso-fareast-language:en-ca\u003e\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp class=\"MsoNormal\" style=\"margin-bottom:0cm;line-height:normal\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003eThe focuser is\r\n2.5\"rack-and-pinion focuser, which is solid and beautiful. It's designed\r\nwith dual-speed hand knobs, twin knobs for coarse adjustment and a fine\r\nadjustment knob to accurate the focus, equipped with a universal M48X0.75\r\nthread adapter. There are also two separate M54X0.75 and M48X0.75 adapters in\r\nthe standard kit for easy access to a variety of imaging equipment and\r\naccessories. The end is equipped with a 360° rotator, which is convenient for\r\nusers to rotate at any angle when shooting. \u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp class=\"MsoNormal\" style=\"margin-bottom:0cm;line-height:normal\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003eFRA300 Pro also\r\ncomes standard with a multi-function handle and a 300mm vixen-style dovetail\r\nplate, which can be directly connected to various mounts and accessories, the\r\nmulti-functional handle can also be connected to the universal vixen-style\r\nfinder base. The 300mm dovetail plate allows the astrograph to maintain balance\r\non the mount.\u003c\/span\u003e\u003c\/p\u003e\u003cbr class=\"innova\"\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":44013766639727,"sku":"FRA300","price":1376.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/FRA300-1__96609.jpg?v=1766562372"},{"product_id":"askar-fra400c-72mm-f-5-6-quintuplet-astrograph","title":"Askar FRA400C 72mm f\/5.6 Quintuplet Astrograph","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Askar FRA400C is a refreshed, budget-friendly version of the FRA400. It is a 72mm f\/5.6 quintuplet dual-ED air-spaced APO refractor with a 400mm focal length and a 44mm image circle, designed for deep-sky astrophotography, everyday photography, and visual observing.\u003c\/p\u003e\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\u003cp\u003eThis telescope is best for beginner-to-intermediate astrophotographers who want a compact flat-field refractor, travel imagers who need a manageable optical tube, and visual observers who want a versatile APO refractor that can also support camera work.\u003c\/p\u003e\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e72mm aperture and 400mm focal length for wide-field deep-sky imaging.\u003c\/li\u003e\n\u003cli\u003eQuintuplet dual-ED air-spaced APO optical design.\u003c\/li\u003e\n\u003cli\u003e44mm format support for full-frame imaging setups.\u003c\/li\u003e\n\u003cli\u003eManual focusing with rear-end adapters for M72, M54, and M48 connections.\u003c\/li\u003e\n\u003cli\u003eWorks natively at f\/5.6 and can be paired with the dedicated 0.7x reducer for f\/3.9 imaging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWide-field nebula and star-field astrophotography.\u003c\/li\u003e\n\u003cli\u003ePortable deep-sky imaging rigs.\u003c\/li\u003e\n\u003cli\u003eFull-frame and APS-C camera setups.\u003c\/li\u003e\n\u003cli\u003eCasual visual observing with the included 1.25-inch\/2-inch adapter.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\u003cp\u003eThe FRA400C rear-end adapter supports M72, M54, and M48 connections, including an M48x0.75 filter thread. The recommended camera connection length is 55mm, with a supported rear-end connection distance range of 50–60mm. The dedicated FRA400C 0.7x Full-Frame Reducer is optional and reduces the system to 280mm at f\/3.9.\u003c\/p\u003e\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eManual focus only unless paired with a compatible electronic focuser and the FRA400C AF Kit.\u003c\/li\u003e\n\u003cli\u003eAstrophotography setups still require correct camera spacing and suitable adapters.\u003c\/li\u003e\n\u003cli\u003eA mount with appropriate payload capacity is required for imaging.\u003c\/li\u003e\n\u003cli\u003eThe reducer is not included.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the FRA400C good for beginners?\u003c\/h3\u003e\u003cp\u003eYes. It is easier to manage than larger astrographs, but beginners should still expect to learn camera spacing, focusing, polar alignment, and image acquisition basics.\u003c\/p\u003e\u003ch3\u003eWhat is it best used for?\u003c\/h3\u003e\u003cp\u003eIt is best used for wide-field deep-sky astrophotography, especially nebulae, large galaxies, and star fields.\u003c\/p\u003e\u003ch3\u003eIs it for visual observing or astrophotography?\u003c\/h3\u003e\u003cp\u003eBoth. It is primarily attractive as an astrograph, but the included visual adapter also supports visual observing.\u003c\/p\u003e\u003ch3\u003eDoes it require additional accessories?\u003c\/h3\u003e\u003cp\u003eFor imaging, most users will need a camera, adapter\/spacer combination, guide system if required, and a suitable equatorial mount. The optional reducer is recommended when faster f\/3.9 imaging is desired.\u003c\/p\u003e\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\u003cp\u003eOntario Telescope recommends the FRA400C for customers who want a versatile, compact Askar refractor for both imaging and visual use. Choose it when you want a wide-field APO with a full-frame-ready image circle; step up to a larger FRA model if you need more aperture or longer focal length.\u003c\/p\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":53155904946287,"sku":"FRA400C","price":1253.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/FRA400A.webp?v=1779736174"},{"product_id":"askar-fra400c-0-7x-full-frame-reducer","title":"Askar FRA400C 0.7x Full-Frame Reducer","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Askar FRA400C 0.7x Full-Frame Reducer is the dedicated reducer for the Askar FRA400C astrograph. It changes the FRA400C system to 280mm focal length at f\/3.9 while maintaining full-frame imaging support and a standard 55mm back focus.\u003c\/p\u003e\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\u003cp\u003eThis reducer is best for FRA400C owners who want faster exposures, a wider field of view, and a more efficient deep-sky imaging setup for large nebulae, star clusters, and wide-field targets.\u003c\/p\u003e\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDedicated optical reducer for the FRA400C.\u003c\/li\u003e\n\u003cli\u003e0.7x reduction changes the FRA400C to 280mm at f\/3.9.\u003c\/li\u003e\n\u003cli\u003eTriplet reducer design with flat-field correction.\u003c\/li\u003e\n\u003cli\u003eSupports full-frame imaging when correctly spaced.\u003c\/li\u003e\n\u003cli\u003eM48x0.75 rear thread with built-in 2-inch filter thread.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWide-field deep-sky astrophotography.\u003c\/li\u003e\n\u003cli\u003eLarge emission nebulae and star fields.\u003c\/li\u003e\n\u003cli\u003eFull-frame and APS-C camera setups on the FRA400C.\u003c\/li\u003e\n\u003cli\u003eFaster imaging sessions where shorter exposure times are helpful.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\u003cp\u003eThis reducer is designed specifically for the Askar FRA400C. It uses an M48x0.75 rear-end adapter and provides a standard 55mm back focus measured from the base of the M48 male thread. The built-in M48x0.75 filter thread supports standard 2-inch mounted filters.\u003c\/p\u003e\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDesigned for the FRA400C; do not assume compatibility with other telescopes.\u003c\/li\u003e\n\u003cli\u003eRequires correct 55mm camera spacing for best performance.\u003c\/li\u003e\n\u003cli\u003eNot useful for visual observing; this is primarily an imaging accessory.\u003c\/li\u003e\n\u003cli\u003eThe FRA400C telescope and camera adapters are not included.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs this good for beginners?\u003c\/h3\u003e\u003cp\u003eYes, for FRA400C owners who already understand basic camera spacing. Beginners should be careful to set the 55mm back focus correctly.\u003c\/p\u003e\u003ch3\u003eWhat is it best used for?\u003c\/h3\u003e\u003cp\u003eIt is best used for faster wide-field deep-sky imaging with the FRA400C.\u003c\/p\u003e\u003ch3\u003eDoes it work with full-frame cameras?\u003c\/h3\u003e\u003cp\u003eYes, the vendor specifies full-frame imaging support when used with the FRA400C and correct spacing.\u003c\/p\u003e\u003ch3\u003eDoes it require additional accessories?\u003c\/h3\u003e\u003cp\u003eMost imaging setups will still require the correct camera adapter or spacer combination to reach 55mm back focus.\u003c\/p\u003e\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\u003cp\u003eOntario Telescope recommends this reducer for FRA400C owners who want the fastest, widest-field configuration available for that telescope. Do not choose it for visual-only use or for telescopes other than the FRA400C unless compatibility is confirmed.\u003c\/p\u003e\u003ctable class=\"product-specifications\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eDedicated reducer \/ field corrector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Telescope\u003c\/th\u003e\n\u003ctd\u003eAskar FRA400C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction Factor\u003c\/th\u003e\n\u003ctd\u003e0.7x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduced Focal Length\u003c\/th\u003e\n\u003ctd\u003e280mm on FRA400C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduced Focal Ratio\u003c\/th\u003e\n\u003ctd\u003ef\/3.9 on FRA400C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLens Design\u003c\/th\u003e\n\u003ctd\u003eTriplet design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBack Focus\u003c\/th\u003e\n\u003ctd\u003e55mm from the base of the M48 male thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRear Thread\u003c\/th\u003e\n\u003ctd\u003eM48x0.75 with internal M48x0.75 2-inch filter thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e0.46kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Use\u003c\/th\u003e\n\u003ctd\u003eFull-frame wide-field astrophotography\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":53155909009519,"sku":"FRA400C-REDUCER","price":349.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/FRA400reducer.webp?v=1779736281"},{"product_id":"askar-fra400c-af-kit-electronic-focuser-upgrade","title":"Askar FRA400C AF Kit Electronic Focuser Upgrade","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Askar FRA400C AF Kit is an electronic focusing upgrade designed specifically for the Askar FRA400C astrograph. It converts the FRA400C manual focusing system into an autofocus-capable setup for astrophotography control software.\u003c\/p\u003e\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\u003cp\u003eThis kit is best for FRA400C owners who image with a computer-controlled setup and want repeatable electronic focusing, automated autofocus routines, or remote focusing from an imaging workstation.\u003c\/p\u003e\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePurpose-built autofocus upgrade for the Askar FRA400C.\u003c\/li\u003e\n\u003cli\u003eUseful for deep-sky astrophotography sessions where focus changes with temperature.\u003c\/li\u003e\n\u003cli\u003eImproves repeatability compared with manual focusing.\u003c\/li\u003e\n\u003cli\u003eSupports a cleaner automated imaging workflow.\u003c\/li\u003e\n\u003cli\u003eDesigned as an accessory for the FRA400C optical tube.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutofocus control for FRA400C imaging rigs.\u003c\/li\u003e\n\u003cli\u003eRemote or semi-remote astrophotography setups.\u003c\/li\u003e\n\u003cli\u003eDeep-sky imaging sessions that require focus checks through the night.\u003c\/li\u003e\n\u003cli\u003eComputer-assisted focusing with compatible astronomy software and controllers.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\u003cp\u003eThis kit is intended for the Askar FRA400C. Users should confirm their focuser controller, imaging software, power connection, and cabling requirements before setup. It is an accessory only and does not include the FRA400C telescope.\u003c\/p\u003e\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOnly recommended for FRA400C owners unless compatibility with another telescope is confirmed.\u003c\/li\u003e\n\u003cli\u003eNot an optical accessory and does not change focal length, aperture, or image circle.\u003c\/li\u003e\n\u003cli\u003eRequires compatible electronic focusing control hardware\/software workflow.\u003c\/li\u003e\n\u003cli\u003eMay not be necessary for visual observers or casual manual-focus users.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs this good for beginners?\u003c\/h3\u003e\u003cp\u003eIt is best for users who are already imaging with the FRA400C and want to add automation. Beginners can use it, but should first be comfortable with basic focusing and imaging software.\u003c\/p\u003e\u003ch3\u003eWhat is it best used for?\u003c\/h3\u003e\u003cp\u003eIt is best used for autofocus during astrophotography sessions with the Askar FRA400C.\u003c\/p\u003e\u003ch3\u003eIs this for visual observing?\u003c\/h3\u003e\u003cp\u003eNo. It is primarily an imaging workflow accessory and is not required for normal visual observing.\u003c\/p\u003e\u003ch3\u003eDoes it require additional accessories?\u003c\/h3\u003e\u003cp\u003eDepending on the user's setup, a compatible focuser controller, software support, power, and cabling may be required.\u003c\/p\u003e\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\u003cp\u003eOntario Telescope recommends the FRA400C AF Kit for FRA400C astrophotographers who want to automate focusing and reduce manual adjustments during imaging. Skip it for visual-only use or if you prefer simple manual focusing.\u003c\/p\u003e\u003ctable class=\"product-specifications\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eElectronic focuser upgrade kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Telescope\u003c\/th\u003e\n\u003ctd\u003eAskar FRA400C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Use\u003c\/th\u003e\n\u003ctd\u003eAutofocus control for astrophotography\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOptical Effect\u003c\/th\u003e\n\u003ctd\u003eNone; mechanical\/electronic focusing accessory only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended User\u003c\/th\u003e\n\u003ctd\u003eIntermediate and advanced imagers using automated capture workflows\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":53155913564271,"sku":"FRA400C-AF-KIT","price":44.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/FRAfocusera.webp?v=1779736385"},{"product_id":"askar-fra400-quintuplet-flat-field-astrograph","title":"Askar FRA400 Quintuplet Flat-Field Astrograph","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Askar FRA400 is a compact quintuplet astrograph with a 72mm aperture, 400mm focal length, and native f\/5.6 focal ratio. It is designed as a flat-field refractor for wide-field deep-sky astrophotography and can also be used for visual observing with suitable accessories.\u003c\/p\u003e\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\u003cp\u003eThe FRA400 is best for beginner-to-intermediate imagers who want a portable wide-field refractor, travel astrophotographers, and advanced users looking for a compact full-frame-capable optical tube for nebulae and large deep-sky targets.\u003c\/p\u003e\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eQuintuplet optical design for flat-field imaging.\u003c\/li\u003e\n\u003cli\u003e72mm aperture and 400mm focal length for wide-field targets.\u003c\/li\u003e\n\u003cli\u003eNative f\/5.6 speed with optional reducer support for faster imaging.\u003c\/li\u003e\n\u003cli\u003eCompact optical tube for travel and portable equatorial mounts.\u003c\/li\u003e\n\u003cli\u003eUseful for nebulae, star fields, large galaxies, and comet imaging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWide-field deep-sky astrophotography.\u003c\/li\u003e\n\u003cli\u003ePortable imaging rigs.\u003c\/li\u003e\n\u003cli\u003eFull-frame and APS-C camera setups when correctly configured.\u003c\/li\u003e\n\u003cli\u003eVisual observing with suitable diagonal and eyepieces.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\u003cp\u003eThe FRA400 can be used natively at 400mm f\/5.6. A dedicated 0.7x reducer is available for users who want a faster and wider f\/3.9 configuration. Imaging users should confirm thread adapters, camera spacing, filter placement, and mount payload before setup.\u003c\/p\u003e\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRequires a suitable equatorial mount for astrophotography.\u003c\/li\u003e\n\u003cli\u003eCamera-side adapters and spacers may be required depending on the imaging train.\u003c\/li\u003e\n\u003cli\u003eThe optional reducer is not included.\u003c\/li\u003e\n\u003cli\u003eNot the best choice for small planetary imaging targets where longer focal length is preferred.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the FRA400 good for beginners?\u003c\/h3\u003e\u003cp\u003eYes. It is a friendly starting point for wide-field imaging, but users should still expect to learn polar alignment, guiding, focusing, and camera spacing.\u003c\/p\u003e\u003ch3\u003eWhat is it best used for?\u003c\/h3\u003e\u003cp\u003eIt is best used for wide-field deep-sky astrophotography, especially larger nebulae, star fields, and extended objects.\u003c\/p\u003e\u003ch3\u003eIs it for visual observing or imaging?\u003c\/h3\u003e\u003cp\u003eIt is primarily an astrograph for imaging, but can also be used visually with suitable accessories.\u003c\/p\u003e\u003ch3\u003eDoes it require additional accessories?\u003c\/h3\u003e\u003cp\u003eMost imagers will need a camera, adapters, filters if desired, a guide system if needed, and a suitable tracking mount.\u003c\/p\u003e\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\u003cp\u003eOntario Telescope recommends the FRA400 for customers who want a compact flat-field refractor for wide-field deep-sky imaging. Choose a longer focal length telescope for small galaxies, planets, or close-up lunar work.\u003c\/p\u003e\u003ctable class=\"product-specifications\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eFlat-field astrograph refractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAperture\u003c\/th\u003e\n\u003ctd\u003e72mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Length\u003c\/th\u003e\n\u003ctd\u003e400mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Ratio\u003c\/th\u003e\n\u003ctd\u003ef\/5.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOptical Design\u003c\/th\u003e\n\u003ctd\u003eQuintuplet astrograph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOptional Reducer\u003c\/th\u003e\n\u003ctd\u003e0.7x reducer available separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Use\u003c\/th\u003e\n\u003ctd\u003eWide-field deep-sky astrophotography\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":53155914252399,"sku":"FRA400","price":1674.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/FRA400Sa.webp?v=1779736657"},{"product_id":"askar-fra600-108mm-f-5-6-quintuplet-astrograph","title":"Askar FRA600 108mm f\/5.6 Quintuplet Astrograph","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Askar FRA600 is a larger FRA-series quintuplet astrograph with a 108mm aperture, 600mm focal length, and f\/5.6 focal ratio. It is designed for high-quality deep-sky astrophotography with a wider corrected imaging field than a conventional doublet or triplet refractor.\u003c\/p\u003e\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\u003cp\u003eThe FRA600 is best for intermediate and advanced astrophotographers who want more aperture than the smaller FRA models while staying in a manageable refractor format. It suits permanent setups, portable imaging rigs with a capable mount, and users imaging nebulae, galaxies, star fields, and larger deep-sky targets.\u003c\/p\u003e\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e108mm aperture for stronger light-gathering than smaller FRA models.\u003c\/li\u003e\n\u003cli\u003e600mm focal length for a versatile deep-sky field of view.\u003c\/li\u003e\n\u003cli\u003eQuintuplet astrograph design for flat-field imaging performance.\u003c\/li\u003e\n\u003cli\u003eNative f\/5.6 focal ratio with optional reducer support for faster imaging.\u003c\/li\u003e\n\u003cli\u003eUseful for full-frame and APS-C astrophotography setups when properly configured.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDeep-sky astrophotography from portable or observatory-class mounts.\u003c\/li\u003e\n\u003cli\u003eNebulae, galaxies, star clusters, and wide-to-medium field targets.\u003c\/li\u003e\n\u003cli\u003eFull-frame camera imaging where a corrected field is important.\u003c\/li\u003e\n\u003cli\u003eAdvanced imaging rigs using filter wheels, cooled cameras, and guiding systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\u003cp\u003eThe FRA600 is intended for imaging with appropriate camera adapters, spacing, filters, and a mount with adequate payload capacity. A dedicated F3.9 reducer is available separately for faster, wider-field imaging. Users should confirm camera connection requirements, backfocus needs, and focuser load capacity for their full imaging train.\u003c\/p\u003e\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRequires a capable equatorial mount for serious astrophotography.\u003c\/li\u003e\n\u003cli\u003eNot the most portable option in the FRA series because of its larger aperture and tube size.\u003c\/li\u003e\n\u003cli\u003eDedicated reducer, camera adapters, guide scope, camera, and filters are sold separately unless specified in a package.\u003c\/li\u003e\n\u003cli\u003eNot ideal for small planetary imaging targets compared with long focal length telescopes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the FRA600 good for beginners?\u003c\/h3\u003e\u003cp\u003eIt can be used by a committed beginner, but it is better suited to intermediate and advanced imagers because it needs a stronger mount and a more carefully planned imaging train.\u003c\/p\u003e\u003ch3\u003eWhat is it best used for?\u003c\/h3\u003e\u003cp\u003eIt is best used for deep-sky astrophotography where a corrected wide-to-medium field and more aperture are desired.\u003c\/p\u003e\u003ch3\u003eIs this for visual observing or astrophotography?\u003c\/h3\u003e\u003cp\u003eIt is primarily an astrograph for imaging. Visual use may be possible with suitable accessories, but imaging is the main reason to choose it.\u003c\/p\u003e\u003ch3\u003eDoes it require additional accessories?\u003c\/h3\u003e\u003cp\u003eYes. Most users will need camera adapters, a camera, filters if required, a guiding solution, and a mount sized appropriately for the telescope and accessories.\u003c\/p\u003e\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\u003cp\u003eOntario Telescope recommends the FRA600 for imagers who want the FRA flat-field design in a larger-aperture platform. Choose it over the smaller FRA models when your mount can handle the extra size and you want more reach and light-gathering power.\u003c\/p\u003e\u003ctable class=\"product-specifications\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eFlat-field astrograph refractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAperture\u003c\/th\u003e\n\u003ctd\u003e108mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Length\u003c\/th\u003e\n\u003ctd\u003e600mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Ratio\u003c\/th\u003e\n\u003ctd\u003ef\/5.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOptical Design\u003c\/th\u003e\n\u003ctd\u003eQuintuplet astrograph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOptional Reducer\u003c\/th\u003e\n\u003ctd\u003eDedicated F3.9 reducer available separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Use\u003c\/th\u003e\n\u003ctd\u003eDeep-sky astrophotography\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":53155927982191,"sku":"FRA600","price":3634.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/FRA600a.webp?v=1779736792"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/collections\/FRA300-1__96609.jpg?v=1779734301","url":"https:\/\/ontariotelescope.com\/collections\/fra-series.oembed","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}