{"title":"Sky-Watcher Refractors","description":"\u003cp\u003eSky-Watcher refractors come in two lines: Evostar ED doublets, including the Evostar 80EDX and 100EDX, and Esprit APO triplets from the Esprit 70EDX to the 150EDX, alongside the earlier Esprit ED models in 80, 100, 120 and 150mm. The doublet Evostar is the lighter, simpler option; the triplet Esprit is designed around imaging. Part of \u003ca href=\"\/collections\/refractors\"\u003eRefractor Telescopes\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"skywatcher-esprit-80ed-apo-triplet","title":"Skywatcher Esprit 80ED APO Triplet","description":"\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003eSkywatcher Esprit 80ED, 100ED, 120ED and 150ED Super APO refractors have a doublet field flattener to get a flat field and minimize aberration and distortion. Their wide 48mm opener ensures a larger and clearer aperture and also extremely minimized halation. Connect the triplet and doublet field flattener with a high precision thin thread to keep the optical axis perpendicular to the image. \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp style=\"box-sizing: border-box;\"\u003eDesigned with the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more.\u003c\/p\u003e\n\u003cp style=\"box-sizing: border-box;\"\u003eWith their three-element air spaced objective lens design, false color is completely eliminated, yielding exceptional contrast and sharpness. The included 2-element field corrector guarantees a flat field across the entire imaging plane. The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift.\u003c\/p\u003e\n\u003cp style=\"box-sizing: border-box;\"\u003eAll Sky-Watcher USA Esprit refractors come with a 8 x 50 right angle finderscope, 2-inch Star diagonal, 2-element field flattener*, camera adapter, D-style dovetail and padded case. Everything you need to get out under the stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003eMain Features: \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Premium optical materials \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Short focal length and full frame corrected focal plane \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Excellent field flatness \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Precision linear power focuser is standard \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Metallic high-transmission lens coatings \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Light-baffled optical systems \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Telescope tube attachment hardware \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Zero detectable Colour Fringing even on Bright Objects\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Knife-edge Baffled Optical System\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eThis is a final sale item.  Brand new with full manufacture warranty.\u003c\/strong\u003e\u003c\/div\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44013469401199,"sku":"S11400","price":3200.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/en_telescope_caty01358550342__78737.jpg?v=1766554085"},{"product_id":"skywatcher-esprit-100ed-apo-triplet","title":"Skywatcher Esprit 100ED APO Triplet","description":"\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003eSkywatcher Esprit 80ED, 100ED, 120ED and 150ED Super APO refractors have a doublet field flattener to get a flat field and minimize aberration and distortion. Their wide 48mm opener ensures a larger and clearer aperture and also extremely minimized halation. Connect the triplet and doublet field flattener with a high precision thin thread to keep the optical axis perpendicular to the image. \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\u003cp style=\"box-sizing: border-box; font-family: \" open sans arial sans-serif margin: font-size:\u003eDesigned with the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more.\u003c\/p\u003e\n\u003cp style=\"box-sizing: border-box; font-family: \" open sans arial sans-serif margin: font-size:\u003eWith their three-element air spaced objective lens design, false color is completely eliminated, yielding exceptional contrast and sharpness. The included 2-element field corrector guarantees a flat field across the entire imaging plane. The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift.\u003c\/p\u003e\n\u003cp style=\"box-sizing: border-box; font-family: \" open sans arial sans-serif margin: font-size:\u003eAll Sky-Watcher USA Esprit refractors come with a 8 x 50 right angle finderscope, 2-inch Star diagonal, 2-element field flattener*, camera adapter, D-style dovetail and padded case. Everything you need to get out under the stars.\u003c\/p\u003e\n\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;\"\u003eMain Features: \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Premium optical materials \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Short focal length and full frame corrected focal plane \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Excellent field flatness \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Precision linear power focuser is standard \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Metallic high-transmission lens coatings \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Light-baffled optical systems \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Telescope tube attachment hardware \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Zero detectable Colour Fringing even on Bright Objects\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Knife-edge Baffled Optical System\u003c\/span\u003e\u003c\/div\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44013469433967,"sku":"S11410","price":4460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/esprit100-left-profile-600x600__26983.jpg?v=1766554093"},{"product_id":"skywatcher-esprit-120ed-apo-triplet","title":"Skywatcher Esprit 120ED APO Triplet","description":"\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003eSkywatcher Esprit 80ED, 100ED, 120ED and 150ED Super APO refractors have a doublet field flattener to get a flat field and minimize aberration and distortion. Their wide 48mm opener ensures a larger and clearer aperture and also extremely minimized halation. Connect the triplet and doublet field flattener with a high precision thin thread to keep the optical axis perpendicular to the image. \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\u003cp style=\"box-sizing: border-box; font-family: \" open sans arial sans-serif margin: font-size:\u003eDesigned with the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more.\u003c\/p\u003e\n\u003cp style=\"box-sizing: border-box; font-family: \" open sans arial sans-serif margin: font-size:\u003eWith their three-element air spaced objective lens design, false color is completely eliminated, yielding exceptional contrast and sharpness. The included 2-element field corrector guarantees a flat field across the entire imaging plane. The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift.\u003c\/p\u003e\n\u003cp style=\"box-sizing: border-box; font-family: \" open sans arial sans-serif margin: font-size:\u003eAll Sky-Watcher USA Esprit refractors come with a 8 x 50 right angle finderscope, 2-inch Star diagonal, 2-element field flattener*, camera adapter, D-style dovetail and padded case. Everything you need to get out under the stars.\u003c\/p\u003e\n\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;\"\u003eMain Features: \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Premium optical materials \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Short focal length and full frame corrected focal plane \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Excellent field flatness \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Precision linear power focuser is standard \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Metallic high-transmission lens coatings \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Light-baffled optical systems \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Telescope tube attachment hardware \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Zero detectable Colour Fringing even on Bright Objects\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Knife-edge Baffled Optical System\u003c\/span\u003e\u003c\/div\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44013469466735,"sku":"S11420","price":5790.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/esprit120-front-left-600x600__96622.jpg?v=1766554100"},{"product_id":"skywatcher-esprit-150ed-apo-triplet","title":"Skywatcher Esprit 150ED APO Triplet","description":"\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003eSkywatcher Esprit 80ED, 100ED, 120ED and 150ED Super APO refractors have a doublet field flattener to get a flat field and minimize aberration and distortion. Their wide 48mm opener ensures a larger and clearer aperture and also extremely minimized halation. Connect the triplet and doublet field flattener with a high precision thin thread to keep the optical axis perpendicular to the image. \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\u003cp style=\"box-sizing: border-box; font-family: \" open sans arial sans-serif margin: font-size:\u003eDesigned with the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more.\u003c\/p\u003e\n\u003cp style=\"box-sizing: border-box; font-family: \" open sans arial sans-serif margin: font-size:\u003eWith their three-element air spaced objective lens design, false color is completely eliminated, yielding exceptional contrast and sharpness. The included 2-element field corrector guarantees a flat field across the entire imaging plane. The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift.\u003c\/p\u003e\n\u003cp style=\"box-sizing: border-box; font-family: \" open sans arial sans-serif margin: font-size:\u003eAll Sky-Watcher USA Esprit refractors come with a 8 x 50 right angle finderscope, 2-inch Star diagonal, 2-element field flattener*, camera adapter, D-style dovetail and padded case. Everything you need to get out under the stars.\u003c\/p\u003e\n\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;\"\u003eMain Features: \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Premium optical materials \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Short focal length and full frame corrected focal plane \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Excellent field flatness \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Precision linear power focuser is standard \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Metallic high-transmission lens coatings \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Light-baffled optical systems \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Telescope tube attachment hardware \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Zero detectable Colour Fringing even on Bright Objects\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e- Knife-edge Baffled Optical System\u003c\/span\u003e\u003c\/div\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44013469499503,"sku":"S11430","price":11470.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/esprit150-front-left-600x600__13534.jpg?v=1766554109"},{"product_id":"evostar-80edx-apo-refractor","title":"Sky-Watcher Evostar 80EDX APO Doublet Refractor","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eSky-Watcher Evostar 80EDX APO Doublet Refractor\u003c\/strong\u003e is a compact 80mm apochromatic refractor optical tube designed for high-quality visual observing and astrophotography. It features an 80mm aperture, 600mm focal length, f\/7.5 focal ratio, FPL-53 ED glass, and a 2.8-inch dual-speed Crayford-style focuser.\u003c\/p\u003e\u003cp\u003eThe Evostar 80EDX is designed for astronomers who want the clean contrast and sharp star performance of an ED refractor in a portable format that is easier to mount, transport, and use than larger-aperture refractors.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eWho Is This Product Best For?\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eThis telescope is best for beginners who want room to grow, intermediate visual observers, and astrophotographers looking for a compact refractor for portable imaging rigs. It is also a strong choice for users who want an ED refractor for lunar, planetary, wide-field deep-sky, and travel-friendly observing.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eWhy Choose This Telescope?\u003c\/strong\u003e\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e80mm APO refractor design:\u003c\/strong\u003e A practical aperture for sharp visual observing and portable astrophotography.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFPL-53 ED glass:\u003c\/strong\u003e Helps reduce false colour and improve contrast compared with standard achromatic refractors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600mm focal length:\u003c\/strong\u003e Useful for wide-field deep-sky targets, lunar observing, and general-purpose refractor work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/7.5 focal ratio:\u003c\/strong\u003e A balanced focal ratio for visual observing and imaging with the right accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.8-inch dual-speed focuser:\u003c\/strong\u003e Supports more precise focusing for both visual use and camera work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable optical tube:\u003c\/strong\u003e Easier to mount and transport than larger refractors while still offering ED optical performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWide-field visual observing\u003c\/li\u003e\n\u003cli\u003eLunar and planetary observing\u003c\/li\u003e\n\u003cli\u003eBeginner-to-intermediate refractor astrophotography\u003c\/li\u003e\n\u003cli\u003ePortable deep-sky imaging with a suitable equatorial mount\u003c\/li\u003e\n\u003cli\u003eTravel-friendly astronomy setups\u003c\/li\u003e\n\u003cli\u003eHigh-contrast views of star clusters, the Moon, planets, and brighter deep-sky objects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eThe Evostar 80EDX includes tube rings, a V-style dovetail, 2.8-inch Crayford-style focuser, camera angle adjuster, thread-on dew shield, focuser adapter ring, spacer, and 1.25-inch to 2-inch adapter. Use it with a mount that can comfortably support the optical tube plus diagonal, eyepieces, camera, guide scope, flattener, filters, or other accessories.\u003c\/p\u003e\u003cp\u003eFor astrophotography, a suitable field flattener or corrector may be required depending on camera sensor size and target type. Camera spacing and backfocus should be confirmed for the specific imaging accessory being used.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eImportant Limitations\u003c\/strong\u003e\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount not included:\u003c\/strong\u003e A compatible mount and tripod or pier are required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot a complete imaging package:\u003c\/strong\u003e Camera, guide scope, filters, field flattener, and other imaging accessories are sold separately unless specifically bundled.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField correction may be required:\u003c\/strong\u003e Imaging users should confirm the correct flattener or reducer for their camera sensor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmaller aperture than 100mm or 120mm refractors:\u003c\/strong\u003e Choose a larger model if visual brightness and resolution are more important than portability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h2\u003e\u003ch3\u003e\u003cstrong\u003eIs the Sky-Watcher Evostar 80EDX good for beginners?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eYes. It is a good choice for a serious beginner who wants a quality refractor that can support both visual observing and future astrophotography, provided it is paired with an appropriate mount.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWhat is this telescope best used for?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIt is best used for wide-field observing, lunar and planetary viewing, portable astrophotography, and general-purpose ED refractor work.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eCan the Evostar 80EDX be used for astrophotography?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eYes. It can be used for astrophotography when paired with a suitable equatorial mount, camera, and the correct field flattener or reducer where needed.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eDoes it include everything needed for visual observing?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIt includes several mechanical accessories, but eyepieces, diagonal, finder, mount, and tripod may need to be purchased separately depending on the package and observing setup.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWhen should I choose a larger refractor instead?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eChoose a 100mm or 120mm refractor if you want more aperture, more resolution, and brighter visual views, and you have a mount capable of handling the larger optical tube.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eOur Recommendation\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eOntario Telescope recommends the Sky-Watcher Evostar 80EDX for observers and imagers who want a portable ED refractor with strong optical performance, manageable size, and room to grow into astrophotography. Choose it when portability and clean refractor views matter more than maximum aperture.\u003c\/p\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":52950682337391,"sku":"S11135","price":1040.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/S11155_Evostar80EDX_OTA__LeftFront_1800x1800_be30b5f9-2e7f-4672-a37d-8cba030e7d38.webp?v=1776189159"},{"product_id":"evostar-100edx-apo-doublet","title":"Sky-Watcher Evostar 100EDX APO Doublet Refractor","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eSky-Watcher Evostar 100EDX APO Doublet Refractor\u003c\/strong\u003e is a 100mm apochromatic refractor optical tube designed for high-quality visual observing and astrophotography. It features a 100mm aperture, 700mm focal length, f\/7 focal ratio, FPL-53 ED glass, and a 2.8-inch dual-speed Crayford-style focuser.\u003c\/p\u003e\u003cp\u003eThe Evostar 100EDX sits between the more compact 80EDX and the larger 120EDX, making it a strong all-around refractor for observers and imagers who want more aperture than an 80mm scope while keeping the setup more manageable than a 120mm refractor.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eWho Is This Product Best For?\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eThis telescope is best for intermediate visual observers, serious beginners who want room to grow, and astrophotographers looking for a capable ED refractor with a practical balance of aperture, focal length, and portability.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eWhy Choose This Telescope?\u003c\/strong\u003e\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100mm APO refractor design:\u003c\/strong\u003e A useful step up in aperture for brighter views and improved resolution compared with smaller refractors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFPL-53 ED glass:\u003c\/strong\u003e Helps reduce false colour and improve image contrast compared with standard achromatic refractors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e700mm focal length:\u003c\/strong\u003e A versatile focal length for lunar, planetary, double-star, and many deep-sky targets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/7 focal ratio:\u003c\/strong\u003e A balanced optical speed for visual observing and imaging with the right accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.8-inch dual-speed focuser:\u003c\/strong\u003e Supports precise focus control for both eyepiece use and camera work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded mounting hardware:\u003c\/strong\u003e Tube rings and a V-style dovetail are included for use with compatible mounts.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLunar and planetary observing\u003c\/li\u003e\n\u003cli\u003eDouble-star observing\u003c\/li\u003e\n\u003cli\u003eDeep-sky visual observing\u003c\/li\u003e\n\u003cli\u003eWide-field and moderate focal length astrophotography\u003c\/li\u003e\n\u003cli\u003eIntermediate refractor imaging setups\u003c\/li\u003e\n\u003cli\u003ePortable but capable visual astronomy rigs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eThe Evostar 100EDX includes tube rings, a V-style dovetail, 2.8-inch Crayford-style focuser, camera angle adjuster, thread-on dew shield, focuser adapter ring, spacer, and 1.25-inch to 2-inch adapter. Pair it with a mount that can comfortably support the optical tube plus diagonal, eyepieces, camera, guide scope, field flattener, filters, or other accessories.\u003c\/p\u003e\u003cp\u003eFor astrophotography, a suitable field flattener or corrector may be required depending on camera sensor size and imaging goals. Camera spacing and backfocus should be confirmed for the specific imaging accessory being used.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eImportant Limitations\u003c\/strong\u003e\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount not included:\u003c\/strong\u003e A compatible mount and tripod or pier are required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot a complete imaging package:\u003c\/strong\u003e Camera, guide scope, filters, field flattener, and other imaging accessories are sold separately unless specifically bundled.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField correction may be required:\u003c\/strong\u003e Imaging users should confirm the correct flattener or reducer for their camera sensor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLess compact than an 80mm refractor:\u003c\/strong\u003e Choose the 80EDX if portability is the top priority.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLess aperture than the 120EDX:\u003c\/strong\u003e Choose the 120EDX if visual brightness and high-resolution work are more important than size and mounting ease.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h2\u003e\u003ch3\u003e\u003cstrong\u003eIs the Sky-Watcher Evostar 100EDX good for beginners?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIt can be a good choice for a serious beginner who wants a quality refractor with room to grow, but it is best matched with a capable mount and appropriate accessories.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWhat is this telescope best used for?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIt is best used for lunar and planetary observing, double stars, visual deep-sky observing, and refractor-based astrophotography with the correct mount and accessories.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eCan the Evostar 100EDX be used for astrophotography?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eYes. It can be used for astrophotography when paired with a suitable equatorial mount, camera, and the correct field flattener or reducer where needed.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eDoes it include everything needed for visual observing?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIt includes several mechanical accessories, but eyepieces, diagonal, finder, mount, and tripod may need to be purchased separately depending on the package and observing setup.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWhen should I choose the 100EDX instead of the 80EDX or 120EDX?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eChoose the 100EDX when you want more aperture and resolution than the 80EDX while keeping the telescope easier to mount and transport than the larger 120EDX.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eOur Recommendation\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eOntario Telescope recommends the Sky-Watcher Evostar 100EDX for observers and imagers who want a versatile mid-size ED refractor with strong optical performance, practical focal length, and a balanced size for visual observing and astrophotography.\u003c\/p\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":52950696525935,"sku":"S11145","price":1240.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/S11145_Evostar100EDX_OTA_LeftFront_1800x1800_e56ae5ab-af28-4e0f-9ab3-9b42bd26b529.webp?v=1776189697"},{"product_id":"esprit-100edx-super-apo-triplet","title":"Esprit 100EDX Super APO Triplet","description":"\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eTHE ELITE ASTROGRAPHS FOR THE REST OF US\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eDesigned with the discerning astrophotographer in mind, Sky-Watcher’s ALL NEW top-of-the-line Esprit EDX refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more. With the Esprit’s three-element, air-spaced objective lens design, false color is virtually eliminated, yielding exceptional contrast and sharpness. Each element is fully multi-coated with Sky-Watcher’s proprietary Metallic High-Transmission Coatings™ (MHTC)™, producing a transmission rate that rivals any refractor on the market.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTriplet super-apochromatic design\u003c\/li\u003e\n\u003cli\u003eThree-element, air-spaced optical assembly virtually eliminates false color\u003c\/li\u003e\n\u003cli\u003e100mm aperture, 550mm focal length, f\/5.5 focal ratio\u003c\/li\u003e\n\u003cli\u003eFPL-53 glass\u003c\/li\u003e\n\u003cli\u003e3.4-inch linear rail rack-and-pinion with micro focus\u003c\/li\u003e\n\u003cli\u003eAluminum optical tube with white, glossy finish\u003c\/li\u003e\n\u003cli\u003eCamera Angle Adjuster and rotatable focuser\u003c\/li\u003e\n\u003cli\u003eSturdy carry handle attaches to tube rings\u003c\/li\u003e\n\u003cli\u003eIncluded accessories: Tube rings, D-style dovetail, M48 camera adapter, and padded hard case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003eIn addition to superb optics, all Esprits feature exclusive dual-speed, Helinear track focusers, which provide smooth, rock-solid focusing with zero image shift. Using a Camera Angle Adjuster which is found on the end of the focuser drawtube and allows for orientation of your camera or eyepieces without needing to rotate the entire focuser. The Esprit EDX 100, 120, and 150 also come stock with rotatable focusers.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eAll Sky-Watcher Esprit EDX refractors come with mounting rings, dovetail plate, camera adapter, and foam-lined hard case.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eUnsurpassed Performance\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eEsprit EDXs use three-element air-spaced optics to deliver images equal to scopes costing thousands of dollars more.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eAward-winning Optics\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eAll Sky-Watcher Esprit EDXs use laboratory matched lens assemblies, including extra-low dispersion elements, for unrivaled clarity and color correction.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eExclusive Linear-track Focuser\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eSky-Watcher’s exclusive focuser design combines a rock-solid platform with zero image shift.\u003c\/p\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":52950752002159,"sku":"S11435","price":2910.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/Esprit100EDX_OTAOnly_LeftFront_1800x1800_130b76fb-a4f9-4bd3-abf5-42f0cd063316.webp?v=1776196420"},{"product_id":"sky-watcher-esprit-70edx-super-apo-triplet-refractor","title":"Sky-Watcher Esprit 70EDX Super APO Triplet Refractor","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Esprit 70EDX is a 70 mm f\/6.5 air-spaced triplet apochromat built around imaging. Its 455 mm focal length frames the large emission nebulae, open clusters and comet tails that overflow a longer scope, and the three-element objective uses FCD-100 extra-low dispersion glass, fully multi-coated with Sky-Watcher's Metallic High-Transmission Coatings (MHTC), to hold colour correction across that wide field. The optical tube weighs 3.3 kg (7.3 lbs) and measures 35 cm (13.8 in) with the dew shield threaded on, which puts it well inside the payload of a small equatorial or strain-wave mount even after a camera, filter wheel and guider are hanging off the back.\u003c\/p\u003e\n\u003cp\u003eIt ships with tube rings, a V-style dovetail, an M48 camera adapter and a padded hard case, so the tube arrives ready to bolt onto a mount and connect to a camera.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis is a good match if you shoot wide-field deep-sky targets and want stars that stay clean into the corners without a five-figure optic. It suits anyone building a travel or second imaging rig, anyone whose mount is small enough that a 3.3 kg tube is the difference between comfortable and marginal, and anyone moving from a doublet who has run out of patience with violet halos on bright stars. It is equally at home as a wide-field visual refractor at low power.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir-spaced triplet apochromat:\u003c\/strong\u003e three elements including FCD-100 extra-low dispersion glass. The third element is what removes the residual violet bloom a doublet leaves on Vega, Rigel and bright planetary detail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetallic High-Transmission Coatings (MHTC):\u003c\/strong\u003e every element is fully multi-coated, so the extra air-glass surfaces of a triplet do not cost you throughput.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.7-inch dual-speed linear-track focuser:\u003c\/strong\u003e a CNC-machined 1:11 dual-speed rack-and-pinion running on a linear rail. The rail is what keeps a loaded imaging train from sagging as focus moves, and it is why the tube holds focus position with zero image shift.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera Angle Adjuster:\u003c\/strong\u003e located at the end of the focuser drawtube, it rotates the camera or eyepiece to frame a target without turning the whole focuser body or disturbing focus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread-on dew shield:\u003c\/strong\u003e threads to the front cell rather than sliding, so it stays put and the tube packs down to 35 cm for transport.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarry handle:\u003c\/strong\u003e attaches to the tube rings for one-handed moves between the car and the mount.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e tube rings, V-style dovetail, M48 camera adapter and a padded hard case.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eOptical \/ Mechanical Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe objective is an air-spaced triplet: three separately mounted elements with air gaps rather than a cemented stack. Air spacing lets Sky-Watcher figure each surface independently and gives the design the freedom to bring red, green and blue to a common focus. With FCD-100 as the low-dispersion element, the colour error that would otherwise show as a violet ring on the brightest stars falls below what a typical pixel scale resolves.\u003c\/p\u003e\n\u003cp\u003eMechanically the tube is aluminium with a white gloss finish. The focuser is the part that matters most for imaging: at 2.7 inches with an 11:1 fine control, it carries a full imaging train without flexure, and the linear rail means the drawtube travels straight instead of tipping under load. Visual back focus is greater than 160 mm (6.3 in), which leaves room for a diagonal and long eyepieces as well as a deep camera stack.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide-field deep-sky imaging:\u003c\/strong\u003e 455 mm at f\/6.5 covers North America Nebula, the Veil, M31, the Pleiades and the larger Sharpless regions on a single frame.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNarrowband from light-polluted skies:\u003c\/strong\u003e f\/6.5 is fast enough that long narrowband subs stay practical.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravel and grab-and-go imaging:\u003c\/strong\u003e 3.3 kg and 35 cm packed, in a hard case.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRich-field visual observing:\u003c\/strong\u003e low-power sweeping through the Milky Way, large clusters and comets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuide or companion scope:\u003c\/strong\u003e riding alongside a longer instrument on a mount with capacity to spare.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eSky-Watcher publishes a fully illuminated field of 30 mm (1.18 in) with the matching two-element thread-on field flattener. A 30 mm circle covers APS-C, whose diagonal is about 28 mm, with a little to spare; a full-frame sensor at 43 mm diagonal will show fall-off in the corners. The flattener is what turns a fast triplet into a flat-field astrograph, and the spacing it needs is specific: 100.06 mm (2.6 in) from the flattener to the sensor. Corner star shape follows directly from hitting that number.\u003c\/p\u003e\n\u003cp\u003eThe thread interfaces are M65 x 1 at the focuser drawtube, M62 x 1 at the field flattener, and M48 x 0.75 at the flattener exit. The supplied M48 camera adapter connects a camera directly to the drawtube.\u003c\/p\u003e\n\u003cp\u003eThe V-style (Vixen) dovetail fits any standard Vixen saddle, which covers most small equatorial and strain-wave mounts. These figures are published for the Esprit 70EDX; the other Esprit EDX sizes pair with their own correctors. Send us your camera, filter wheel and spacer stack and we will work the 100.06 mm out with you before you order.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe field flattener is a separate purchase.\u003c\/strong\u003e The tube images without it, but flat corners across the 30 mm circle come from the matched two-element thread-on flattener. We stock it and can bundle the spacing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo mount is included.\u003c\/strong\u003e This is an optical tube with rings and a dovetail. At 3.3 kg it is one of the easier triplets to mount, and a small equatorial or strain-wave head handles it with a camera attached.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe rotatable focuser is not part of this size.\u003c\/strong\u003e Sky-Watcher fits rotatable focusers to the Esprit EDX 100, 120 and 150. The 70EDX uses the Camera Angle Adjuster at the drawtube instead, which achieves camera rotation by a different route.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo weights are published.\u003c\/strong\u003e The optical tube itself is 3.3 kg (7.3 lbs); the shipping figure of 23.5 lb covers the tube, rings, dovetail, adapter and the foam-lined hard case together.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVendor listings of the box contents differ slightly.\u003c\/strong\u003e The product page lists tube rings, V-style dovetail, M48 camera adapter and padded hard case; the manual's accessory line also mentions a 2-inch star diagonal. We confirm the exact contents of the carton before it leaves us.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs it difficult to set up?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The tube arrives in its rings with the dovetail fitted, so the physical setup is dropping it into a saddle and tightening one clamp. The part that takes thought is the imaging train: the camera threads to the M48 adapter, and if you add the flattener the sensor sits 100.06 mm behind it. Once you have measured that stack once, it does not change.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it cover my camera?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe published illuminated field with the flattener is 30 mm, so APS-C and every smaller format are covered. Full frame extends past that circle and shows corner fall-off. Tell us which camera you are using and we will tell you what the corners will look like.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat mount does it need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnything with a Vixen saddle and headroom past roughly 3.3 kg plus your camera. Small strain-wave heads and compact equatorials are the usual pairing, and the low weight is what keeps guiding easy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it usable for visual observing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Visual back focus is greater than 160 mm, which accommodates a 2-inch diagonal and eyepieces. At 455 mm it is a wide-field instrument rather than a high-power planetary scope.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does it differ from an ED doublet of the same aperture?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe third element. A doublet brings two wavelengths to common focus; the triplet brings three, which is what removes the violet halo around bright stars in long exposures.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA 70 mm f\/6.5 FCD-100 triplet with a linear-track dual-speed focuser, a 30 mm illuminated field with its matched flattener, and a 3.3 kg tube that almost any mount can carry. It is the Esprit optical and mechanical package in the size that travels.\u003c\/p\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":53896760623215,"sku":"S11425","price":1800.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/Esprit70EDX_OTAOnly_FrontLeft.jpg?v=1785253637"},{"product_id":"sky-watcher-esprit-120edx-super-apo-triplet-refractor","title":"Sky-Watcher Esprit 120EDX Super APO Triplet Refractor","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Esprit 120EDX is a 120 mm f\/7 air-spaced triplet apochromat, the size in the Esprit EDX line where aperture and focal length start delivering resolution rather than just field. At 840 mm it is long enough for galaxies, globulars and planetary nebulae while still holding a usable field on a large sensor, and it resolves to 1.16 arc seconds by the Rayleigh criterion. The objective uses FPL-53 extra-low dispersion glass in a three-element air-spaced cell, fully multi-coated with Sky-Watcher's Metallic High-Transmission Coatings (MHTC), and gathers 294 times the light of the unaided eye.\u003c\/p\u003e\n\u003cp\u003eThe tube weighs 10.7 kg (25 lbs) and measures 70 cm (28 in) with the dew shield retracted. It ships with tube rings, a D-style dovetail, an accessory rail, an M48 camera adapter and a padded hard case.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis is a good match if you have a mount with real capacity and want a single refractor that images galaxies and shoots high-resolution lunar and planetary work without changing instruments. It suits imagers running full-frame or large APS-C sensors, observers who want a 120 mm apochromat for double stars and planets at 283x, and anyone stepping up from a 70 mm to 100 mm class refractor who has hit the resolution ceiling of the smaller aperture. At 10.7 kg it is a permanent-pier or heavy-portable instrument rather than a grab-and-go one.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir-spaced FPL-53 triplet:\u003c\/strong\u003e three elements with air gaps, built around FPL-53 extra-low dispersion glass. This is the glass type that lets a 120 mm f\/7 stay apochromatic rather than needing to be slowed down to control colour.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetallic High-Transmission Coatings (MHTC):\u003c\/strong\u003e fully multi-coated throughout, so the six air-glass surfaces of the triplet do not eat into the light the 120 mm aperture collects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotatable dual-speed focuser:\u003c\/strong\u003e a double-speed rack-and-pinion of 74 mm (3 in) diameter running on a linear rail. The 120EDX is one of the sizes that comes with a rotatable focuser as standard, in addition to the Camera Angle Adjuster.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera Angle Adjuster:\u003c\/strong\u003e at the end of the drawtube, it orients a camera or eyepiece without rotating the focuser body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetractable dew shield:\u003c\/strong\u003e slides back over the tube, which is what keeps the packed length at 70 cm on a scope with an 840 mm focal length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep back focus:\u003c\/strong\u003e greater than 225 mm (8.7 in) visually, which leaves room for long diagonals, binoviewers and deep camera trains.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e tube rings, D-style dovetail, accessory rail, M48 camera adapter and a padded hard case.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eOptical \/ Mechanical Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe three elements sit in an air-spaced cell rather than a cemented doublet-plus-corrector stack. Each surface is figured independently, and the FPL-53 element carries the dispersion correction that brings red, green and blue to a common focus. The published performance follows from the aperture: 1.16 arc second Rayleigh resolution, 0.97 arc second by the Dawes limit, a limiting stellar magnitude of 12.9, and 294x the light-gathering power of the human eye. Useful magnification runs from 17x at the low end to 283x at the top.\u003c\/p\u003e\n\u003cp\u003eMechanically, the 74 mm rack-and-pinion focuser is sized for the load a 120 mm astrograph attracts. Its linear rail keeps the drawtube travelling straight under a full imaging train, and the dual-speed fine control is what makes focusing at f\/7 repeatable. The output thread is M74 x 1 with 6 mm of screw depth. The tube is aluminium with a white gloss finish, and the retractable dew cap shortens it for transport.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep-sky astrophotography:\u003c\/strong\u003e 840 mm at f\/7 frames galaxies, globular clusters, planetary nebulae and the compact end of the emission-nebula catalogue.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-frame imaging with the matched flattener:\u003c\/strong\u003e the corrector covers a 44 mm imaging plane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWider fields with the reducer-flattener:\u003c\/strong\u003e a shorter effective focal length over a 34 mm circle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-resolution visual observing:\u003c\/strong\u003e double stars, lunar detail and planets at up to 283x with 1.16 arc second resolution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBinoviewing:\u003c\/strong\u003e back focus greater than 225 mm accommodates the light path a binoviewer adds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTwo correctors are published for this tube, each with its own spacing and its own covered circle. With the field flattener, the sensor sits exactly 75 mm behind the back of the flattener and full illumination extends across a 44 mm imaging plane, which covers full frame. With the reducer-flattener, the sensor sits exactly 95 mm behind the last lens and full illumination extends across 34 mm, which covers APS-C comfortably. Corner star shape depends on landing on those distances; for a CCD or a camera with an unusual back-focus depth, Sky-Watcher specifies a custom ring rather than a stack of generic spacers.\u003c\/p\u003e\n\u003cp\u003eThread interfaces are M74 x 1 at the focuser output, M62 x 1 female at the field flattener, and an M78 x 1 thread securing the ring at the reducer-flattener exit. The supplied M48 camera adapter connects a camera to the drawtube directly.\u003c\/p\u003e\n\u003cp\u003eThe D-style (Losmandy) dovetail fits any Losmandy-format saddle, which is what a 10.7 kg tube generally wants. These figures are published for the Esprit 120EDX; the other Esprit EDX sizes pair with their own correctors. Send us your camera, filter wheel and spacer list and we will work the 75 mm or 95 mm out with you before you order.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe flattener and the reducer-flattener are separate purchases.\u003c\/strong\u003e Sky-Watcher states they are designed specifically for the Esprit 120 and must be bought separately. We stock the matching corrector and can supply it spaced.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo mount is included.\u003c\/strong\u003e The tube alone is 10.7 kg (25 lbs), and a camera, filter wheel and guider add to that. It is worth accounting for in your mount's payload; the D-style dovetail and accessory rail come fitted, so the mounting hardware itself is already handled.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe two correctors are not interchangeable in spacing.\u003c\/strong\u003e 75 mm for the flattener, 95 mm for the reducer-flattener, measured from different reference surfaces. The 44 mm and 34 mm circles differ with them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe vendor quotes the focuser two ways.\u003c\/strong\u003e The manual specifies a double-speed rack and pinion of 74 mm (3 in) diameter; the product page describes a 3.4-inch linear rail rack-and-pinion with micro focus. Both refer to the same focuser on the same tube.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo weights are published.\u003c\/strong\u003e The optical tube is 10.7 kg (25 lbs); the shipping figure of 58.0 lb covers the tube, rings, dovetail, rail, adapter and the foam-lined hard case together.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs it difficult to set up?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe optical side is straightforward: the tube arrives in its rings with the D-style dovetail and accessory rail fitted, so mounting is a single clamp. What takes planning is the handling, since 10.7 kg is a two-hand lift onto a saddle at chest height, and the imaging spacing, which is 75 mm with the flattener or 95 mm with the reducer-flattener. Measure the train once and it stays measured.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it cover a full-frame sensor?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith the field flattener, yes: full illumination across a 44 mm imaging plane, and full frame has a 43 mm diagonal. With the reducer-flattener the circle is 34 mm, which covers APS-C rather than full frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat mount does it need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSomething with headroom well past 10.7 kg once your camera train is attached, and a Losmandy-format saddle to take the D-style bar. Send us your mount model and we will tell you where you will land.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow good is it visually?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1.16 arc second Rayleigh resolution, limiting magnitude 12.9, and 283x of useful magnification. Back focus greater than 225 mm means a 2-inch diagonal and a binoviewer both reach focus.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between FPL-53 and ordinary ED glass?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDispersion. FPL-53 has a lower dispersion figure than common ED types, which is what allows a 120 mm triplet to stay colour-corrected at f\/7 instead of needing a slower focal ratio.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA 120 mm f\/7 FPL-53 air-spaced triplet with a rotatable 74 mm dual-speed focuser, over 225 mm of back focus, and published corrector options covering 44 mm and 34 mm imaging planes. It is the Esprit EDX package at the aperture where resolution, not just field, is the point.\u003c\/p\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":53896765079663,"sku":"S11445","price":4580.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/S11445_Esprit120EDX_OTA_LeftFront.jpg?v=1785253740"},{"product_id":"sky-watcher-esprit-150edx-super-apo-triplet-refractor","title":"Sky-Watcher Esprit 150EDX Super APO Triplet Refractor","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Esprit 150EDX is the largest optical tube in Sky-Watcher's Esprit EDX astrograph line: a 150 mm air-spaced triplet apochromat working at 1050 mm of focal length and f\/7. The three-element, laboratory-matched objective uses extra-low dispersion glass, and every surface carries Sky-Watcher's Metallic High-Transmission Coatings (MHTC). For this aperture Sky-Watcher publishes 0.77 arc seconds Dawes resolution, 0.93 arc seconds Rayleigh, a limiting stellar magnitude of 13.4, and light grasp 459x that of the human eye.\u003c\/p\u003e\n\u003cp\u003eWhat ships is the optical tube assembly with mounting rings, dovetail plate, camera adapter and a foam-lined hard case. The mount is chosen separately, and at 15 kg (32 lbs) of tube weight the mount choice is the main planning decision on this scope.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis is a good match if you image at longer focal lengths and want refractor star shape rather than a mirror system's diffraction pattern. At 1050 mm, galaxy cores, globular clusters and small planetary nebulae come up at a scale most 400-600 mm astrographs cannot reach, while f\/7 keeps exposures workable.\u003c\/p\u003e\n\u003cp\u003eIt is equally at home visually. Sky-Watcher publishes more than 170 mm (6.7 in) of visual back focus, which accommodates a 2-inch diagonal and binoviewers without adapters that eat into travel, and a useful magnification range of 21x to 354x covers everything from full-frame nebulae to high-power planetary work.\u003c\/p\u003e\n\u003cp\u003eAstrophotographers pairing it with a large German equatorial - and observers who want one refractor that does deep-sky imaging and planetary viewing without compromise - are the natural buyers here.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e150 mm f\/7 air-spaced triplet apochromat:\u003c\/strong\u003e three matched elements including extra-low dispersion glass, so bright stars and lunar limbs come through without the violet fringe a doublet leaves behind.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetallic High-Transmission Coatings (MHTC):\u003c\/strong\u003e full multi-coating on every air-to-glass surface, which is where the published 459x light-gathering figure comes from.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-inch CNC-machined rotatable dual-speed focuser:\u003c\/strong\u003e a linear power focuser with 1:11 fine reduction. The drawtube is a linear track rather than a rack riding on a shaft, so a 15 kg imaging train does not introduce image shift at the moment of focus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera Angle Adjuster:\u003c\/strong\u003e sits at the end of the drawtube and rotates the camera or eyepiece to frame a target, leaving the focuser body and its balance untouched.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotatable focuser body:\u003c\/strong\u003e standard on the 100, 120 and 150 EDX, so the focus knobs can be indexed to wherever your hand falls at the mount.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e44 mm fully illuminated field with the field flattener:\u003c\/strong\u003e that covers a full-frame 35 mm sensor's 43.3 mm diagonal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMore than 170 mm visual back focus:\u003c\/strong\u003e room for a 2-inch diagonal, a binoviewer, or a filter wheel and off-axis guider stack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded in the box:\u003c\/strong\u003e mounting rings, dovetail plate, camera adapter and a foam-lined hard case.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eOptical \/ Mechanical Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe objective is a three-element, air-spaced super-apochromatic assembly. Air spacing lets Sky-Watcher tune the gaps between elements during assembly rather than accepting whatever an oiled or cemented stack gives, and the matched-assembly process means the three elements in your tube were figured and tested together. The practical result is the 0.77 arc second Dawes figure holding across the field instead of only at centre, and colour that stays neutral on Vega or a first-quarter Moon.\u003c\/p\u003e\n\u003cp\u003eMechanically the interesting part is the focuser. A 3-inch drawtube is wide enough that the light cone from a 150 mm f\/7 objective clears it without vignetting at the corners of a full-frame sensor, and the linear-track design carries the load on rails rather than on a pinion contact patch. The 1:11 fine ratio gives roughly a tenth of a turn of drawtube travel per full turn of the fine knob, which matters when critical focus at f\/7 on a 150 mm aperture is a few tens of microns deep.\u003c\/p\u003e\n\u003cp\u003eThe tube measures 92 cm (36 in) with the dew cap retracted, and weighs 15 kg (32 lbs). Sky-Watcher's own carton for the complete package, including the hard case, is listed at 77 lb.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-focal-length deep-sky imaging:\u003c\/strong\u003e 1050 mm at f\/7 across a flattened 44 mm circle, for galaxies, globulars and compact nebulae.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNarrowband work:\u003c\/strong\u003e the apochromatic correction means Ha, OIII and SII sub-frames land on the same focus point, so filter-offset chasing largely disappears.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-resolution lunar and planetary viewing:\u003c\/strong\u003e 354x highest useful magnification with an unobstructed aperture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble-star observing:\u003c\/strong\u003e 0.77 arc seconds Dawes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide-field visual sweeping:\u003c\/strong\u003e 21x lowest useful magnification through a 2-inch diagonal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Esprit 150EDX Flattener is the matched corrector for this tube and is sold separately. Sky-Watcher specifies the sensor sitting at exactly 100 mm from the back of the flattener, or 95 mm from the edge of the lens mount - corner star shape across the 44 mm circle depends on hitting that number, and it is set with spacers between the flattener and the camera. These figures are published for the Esprit 150EDX; other Esprit apertures pair with their own flatteners, so send us your model and we will confirm the right one.\u003c\/p\u003e\n\u003cp\u003eThe camera adapter supplied with the tube handles a straightforward DSLR or mirrorless attachment. For a filter wheel, off-axis guider and cooled camera stack, the spacing arithmetic changes - send us the parts list and we will work out the spacer chain with you before you order.\u003c\/p\u003e\n\u003cp\u003eVisually, the published back focus of more than 170 mm accepts a 2-inch star diagonal and standard eyepieces, and leaves enough travel for a binoviewer's optical path.\u003c\/p\u003e\n\u003cp\u003eThe tube ships with mounting rings and a dovetail plate. At 15 kg before a camera, imaging mounts in the EQ6-R \/ EQ8 class are the usual pairing; tell us what you are mounting on and we will confirm the headroom.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis is an optical tube assembly.\u003c\/strong\u003e Mounting rings, dovetail plate, camera adapter and hard case are included; a mount, tripod and eyepieces are not.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube weight is 15 kg (32 lbs).\u003c\/strong\u003e With a camera, filter wheel and guider attached the imaging payload lands meaningfully higher, which is worth accounting for against your mount's rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe field flattener is a separate purchase.\u003c\/strong\u003e The 44 mm fully illuminated field is the figure published with the flattener in place.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSky-Watcher's spec sheet does not name the specific ED glass type for this model.\u003c\/strong\u003e Their published description states laboratory-matched lens assemblies including extra-low dispersion elements; we have not carried a glass code across from another Esprit aperture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping weight is 77 lb for the complete package.\u003c\/strong\u003e The hard case and packaging account for the difference from the 15 kg tube figure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree shipping applies to this item\u003c\/strong\u003e per Sky-Watcher's listing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs it difficult to set up?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe optical assembly arrives finished - there is no collimation to perform and no mirror to align. Setup is mounting rings onto the dovetail, dovetail into the saddle, and balancing. The one part that takes real handling is the tube itself: 15 kg over 92 cm is a two-hand lift onto a saddle, and most owners settle into a routine of mounting the tube before the counterweights go on.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the Esprit EDX and the older Esprit ED?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe EDX generation adds the Camera Angle Adjuster at the drawtube and, on the 100, 120 and 150, a rotatable focuser body. The objective carries Sky-Watcher's MHTC multi-coating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need the flattener for visual observing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The flattener corrects field curvature across a camera sensor. For eyepiece use the tube goes straight to a 2-inch diagonal, with more than 170 mm of back focus available.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it cover a full-frame sensor?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith the matched flattener, the fully illuminated field is 44 mm - larger than the 43.3 mm diagonal of a 35 mm full-frame sensor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used for planetary imaging?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. 1050 mm native focal length with an unobstructed 150 mm aperture, and a published highest useful magnification of 354x, suits lunar and planetary capture directly or with a Barlow.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA 150 mm f\/7 triplet apochromat with a 3-inch rotatable dual-speed focuser, a 44 mm flattened image circle and better than 170 mm of visual back focus - shipped as an optical tube with rings, dovetail, camera adapter and hard case. It is the top of the Esprit EDX range, and it does long-focal-length imaging and high-power visual work with the same optics. If you would like us to confirm the mount pairing or the imaging-train spacing for your camera, send us the details and we will map it out.\u003c\/p\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":53896772288623,"sku":"S11455","price":6670.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/S11455_Esprit150EDX_OTA_LeftFront.jpg?v=1785253841"}],"url":"https:\/\/ontariotelescope.com\/collections\/refractors-sky-watcher.oembed","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}