{"title":"Starfield Gear Series","description":"\u003cp\u003eThe Starfield Gear Series line, listed by aperture. Part of \u003ca href=\"\/collections\/starfield-telescopes\"\u003eStarfield Optics Telescopes\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"adjustable-2-5-reducer-for-ed102-and-gear-115","title":"Adjustable 2.5\" Reducer for ED102 and Gear 115","description":"\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: Helvetica, arial, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003eThe Starfield 0.8x adjustable reducer and flattener makes finding the correct back focus easy!  Fighting with adapters is a thing of the past! \u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: Helvetica, arial, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cbr style=\"box-sizing: inherit; clear: both;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: Helvetica, arial, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003eBy setting the adjustment to 14.87mm with the scale, achieving 55mm of back focus is simple, and if more adjustment is needed for fine tuning all that is needed is a small twist.    If you are using accessories such as filter wheels and rotators you can not still get the required back focus.   Just add up the thickness of all the accessories, plus the distance to your sensor and subtract from 69.87 and then set the reducer to the number that is calculated.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: Helvetica, arial, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cbr style=\"box-sizing: inherit; clear: both;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: Helvetica, arial, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003eThe reducer attaches directly to the Starfield ED102 telescope focuser by removing the Axil lock.  Using the supplied 1.5mm Allen key, loosen off the three screws a half turn and then unscrew the lock.  \u003cbr style=\"box-sizing: inherit; clear: both;\"\u003eThread the reducer onto the focuser.   \u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: Helvetica, arial, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cbr style=\"box-sizing: inherit; clear: both;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: Helvetica, arial, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003eThis Reducer can also be used for other Telescopes lager than 102mm\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; background-color: rgb(255, 255, 255);\"\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Helvetica, arial, sans-serif;\"\u003e102 mm \/ focal ratio f\/7 - 69.87 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Helvetica, arial, sans-serif;\"\u003e107 mm \/ focal ratio f\/6.5 - 69.0 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Helvetica, arial, sans-serif;\"\u003e130 mm \/ focal ratio f\/7 - 66.17 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Helvetica, arial, sans-serif;\"\u003e140 mm \/ focal ratio f\/6.5 - 65.8 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Helvetica, arial, sans-serif;\"\u003e150 mm \/ focal ratio f\/8 - 63.34 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Helvetica, arial, sans-serif;\"\u003e155 mm \/ focal ratio f\/8 - 62.57 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: inherit; font-family: Helvetica, arial, sans-serif;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: Helvetica, arial, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003eFilters can be added inside the reducer.\u003c\/span\u003e\u003c\/p\u003e","brand":"Starfield","offers":[{"title":"Default Title","offer_id":44013603684463,"sku":"SF-FFRA08-2.5","price":354.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/IMG_4055__41914.jpg?v=1766557496"},{"product_id":"starfield-optics-gear-series-80mm-f-6-triplet-apo","title":"Starfield Optics Gear Series 80mm f\/6 Triplet APO","description":"\u003cp style=\"box-sizing: inherit; margin: 0px; color: #5e5e5e; font-family: Helvetica, arial, sans-serif; font-size: 16px; background-color: #ffffff;\"\u003e\u003cstrong\u003e\u003cspan class=\"x-el x-el-span c1-a4 c1-a5 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eNow with a Free 0.8x Adjustable Reducer!  While supplies last\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px; color: #5e5e5e; font-family: Helvetica, arial, sans-serif; font-size: 16px; background-color: #ffffff;\"\u003e \u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px; color: #5e5e5e; font-family: Helvetica, arial, sans-serif; font-size: 16px; background-color: #ffffff;\"\u003e\u003cspan class=\"x-el x-el-span c1-a4 c1-a5 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eThe Starfield Optics ED80 f\/6 Triplet APO will take your wide field imaging game to new levels. Using FPL53 (Ohara, Japan) optics, this telescope comes standard with heavy duty rings, extra long vixen style dovetail, and a handle designed to mount accessories. 2.5\" Rack and Pinion 2 speed focuser, and a retractable dew shield. To make your imaging experience even better, the camera angle rotator will let you frame up your object easily without adding flex or changing your focuser position. Multicoated optics are standard. Each Gear series telescope comes with a hard case and optical test report.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px; color: #5e5e5e; font-family: Helvetica, arial, sans-serif; font-size: 16px; background-color: #ffffff;\"\u003e\u003cspan class=\"x-el x-el-span c1-a4 c1-a5 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ch4 class=\"x-el x-el-h4 c1-bl c1-2 c1-2n c1-2o c1-bm c1-3m c1-3n c1-31 c1-32 c1-2a c1-50 c1-bn c1-69 c1-bo c1-bp c1-bq c1-br\" style=\"box-sizing: inherit; font-family: Raleway, arial, sans-serif; overflow-wrap: break-word; margin: 0px 0px 24px; color: #1b1b1b; max-width: 100%; letter-spacing: 1.5px; line-height: 1.25; font-size: 19px; background-color: #ffffff;\" role=\"heading\" aria-level=\"4\" data-ux=\"ContentHeading\" data-aid=\"ABOUT_HEADLINE_RENDERED1\" data-typography=\"HeadingDelta\"\u003eHigh quality build and features\u003c\/h4\u003e\n\u003cdiv class=\"x-el c1-1 c1-2 c1-2n c1-2o c1-5s c1-31 c1-32 c1-an c1-ao c1-ap c1-aq c1-ar c1-as c1-at c1-au c1-av c1-aw c1-ax c1-ay c1-az c1-b0 c1-b1 c1-b2 c1-b3 c1-b4 c1-b5 c1-b6 c1-b7 c1-b8 c1-b9 c1-ba c1-bb c1-bc c1-bd c1-be c1-s c1-b c1-1n c1-c c1-3w c1-d c1-6a c1-e c1-h c1-i x-rt\" style=\"box-sizing: inherit; font-family: Helvetica, arial, sans-serif; font-size: 16px; flex-grow: 1; color: #5e5e5e; overflow-wrap: break-word; margin-top: 0px; margin-bottom: 24px; line-height: 1.5; max-width: 100%; background-color: #ffffff;\" data-ux=\"ContentText\" data-aid=\"ABOUT_DESCRIPTION_RENDERED1\" data-typography=\"BodyAlpha\"\u003e\n\u003cul style=\"box-sizing: inherit; padding-left: 1.3em; margin: auto 16px;\"\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003e2.5\" two speed rack and pinion focuser, with ball bearings, that is also fully rotatable\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eOptional motor focuser can easily be installed.\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eSelf centering rotational lock, no setscrews to come loose\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eSupport for heavy camera loads and accessories\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eSupports 2\" and 1.25\" eyepiece accessories\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eCamera Angle Adjuster (CAA)\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eHD CNC tube rings and Vixen style dovetail bar\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eHandle for transportation and mounting accessories\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eRetractable dew shield retractable for transport.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch4 class=\"x-el x-el-h4 c1-bl c1-2 c1-2n c1-2o c1-bm c1-3m c1-3n c1-31 c1-32 c1-2a c1-50 c1-bn c1-69 c1-bo c1-bp c1-bq c1-br\" style=\"box-sizing: inherit; font-family: Raleway, arial, sans-serif; overflow-wrap: break-word; margin: 0px 0px 24px; color: #1b1b1b; max-width: 100%; letter-spacing: 1.5px; line-height: 1.25; font-size: 19px;\" role=\"heading\" aria-level=\"4\" data-ux=\"ContentHeading\" data-aid=\"ABOUT_HEADLINE_RENDERED2\" data-typography=\"HeadingDelta\"\u003eTriplet Apo 80mm f\/6 - FPL53 Objective\u003c\/h4\u003e\n\u003cdiv class=\"x-el c1-1 c1-2 c1-2n c1-2o c1-5s c1-31 c1-32 c1-an c1-ao c1-ap c1-aq c1-ar c1-as c1-at c1-au c1-av c1-aw c1-ax c1-ay c1-az c1-b0 c1-b1 c1-b2 c1-b3 c1-b4 c1-b5 c1-b6 c1-b7 c1-b8 c1-b9 c1-ba c1-bb c1-bc c1-bd c1-be c1-s c1-b c1-1n c1-c c1-3w c1-d c1-6a c1-e c1-h c1-i x-rt\" style=\"box-sizing: inherit; flex-grow: 1; overflow-wrap: break-word; margin-top: 0px; line-height: 1.5; max-width: 100%; margin-bottom: 0px !important;\" data-ux=\"ContentText\" data-aid=\"ABOUT_DESCRIPTION_RENDERED2\" data-typography=\"BodyAlpha\"\u003e\n\u003cul style=\"box-sizing: inherit; padding-left: 1.3em; margin: auto 16px;\"\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eAperture 80mm \/ focal length 480mm \/ focal ratio f\/6\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eImage free of chromatic error due to \"Extra-Low-Dispersion\"\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eFPL53 apo element from Ohara (Japan)\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eAchieving better chromatic correction than comparable apochromats\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-a3 c1-a4 c1-b c1-c c1-d c1-e c1-h c1-i\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eInternally baffled to prevent stray light and get the contrast you would expect from performance refractors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Starfield","offers":[{"title":"Default Title","offer_id":44013675806831,"sku":"G80-06EDT_","price":1200.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/gear80_2525201__90022.1682640757.1280.1280.jpg?v=1766559294"},{"product_id":"starfield-optics-gear-series-90mm-edt-f-6","title":"Starfield Optics Gear Series 90MM EDT F\/6","description":"\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: \" source sans pro arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003eThe Starfield Optics EDT90 f\/6 Triplet APO with FPL53 will take your wide field imaging game to new levels. Using multi-coated FPL 53 (ED) glass, you'll experience sharp stars and amazing contrast. \u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: \" source sans pro arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003e\u003cbr style=\"box-sizing: border-box;\"\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: \" source sans pro arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003eThe Starfield Géar Series comes with a retractable dew shield, an optical test report, heavy duty rings, a Vixen style dovetail, a handle designed to mount optional accessories, and a hard case with die-cut foam.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: \" source sans pro arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003e\u003cbr style=\"box-sizing: border-box;\"\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: \" source sans pro arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003eWeighing in at just 9 pounds, the Géar 90mm can be easily used on a mount with a payload capacity of 20 pounds, making your whole set up reasonably portable. \u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: \" source sans pro arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003e\u003cbr style=\"box-sizing: border-box;\"\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: \" source sans pro arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003eAn 0.8x adjustable reducer is available separately for astro-imaging with APS-C sensors.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: \" source sans pro arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: \" source sans pro arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003eCheck out the Review from \u003ca href=\"https:\/\/astrogeartoday.com\/starfields-gear-90-refractor-review-a-premium-apo-for-visual-and-photo-use\/\"\u003eAstro Gear Today Review \u003c\/a\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; font-family: \" source sans pro arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch4 role=\"heading\" aria-level=\"4\" data-ux=\"ContentHeading\" data-aid=\"ABOUT_HEADLINE_RENDERED1\" data-typography=\"HeadingDelta\" class=\"x-el x-el-h4 c1-55 c1-37 c1-18 c1-19 c1-aw c1-4t c1-4u c1-1b c1-1c c1-b c1-30 c1-c c1-26 c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; font-family: \" source sans pro arial sans-serif rgb break-word uppercase font-weight:=\"\" line-height:=\"\" margin:=\"\" font-size:=\"\" background-color:=\"\" overflow-wrap:=\"\" text-transform:=\"\" letter-spacing:=\"\" max-width:=\"\"\u003eHIGH QUALITY BUILD AND FEATURES\u003c\/h4\u003e\u003cdiv data-ux=\"ContentText\" alignment=\"left\" data-aid=\"ABOUT_DESCRIPTION_RENDERED1\" fontscalemultiplier=\"1\" data-typography=\"BodyAlpha\" class=\"x-el c1-1 c1-2 c1-18 c1-19 c1-1a c1-1b c1-1c c1-9w c1-9x c1-9y c1-9z c1-a0 c1-a1 c1-a2 c1-a3 c1-a4 c1-a5 c1-a6 c1-a7 c1-a8 c1-a9 c1-aa c1-ab c1-ac c1-ad c1-ae c1-af c1-ag c1-ah c1-ai c1-aj c1-ak c1-al c1-am c1-an c1-96 c1-b c1-4y c1-c c1-26 c1-d c1-e c1-f c1-g x-rt\" style=\"box-sizing: inherit; font-family: \" source sans pro arial sans-serif rgb break-word font-size:=\"\" background-color:=\"\" overflow-wrap:=\"\" line-height:=\"\" margin-top:=\"\" flex-grow:=\"\" max-width:=\"\" margin-bottom:=\"\"\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003c\/p\u003e\n\u003cul style=\"box-sizing: inherit; margin: auto 16px; padding-left: 1.3em;\"\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e2.5\" two speed, rotating rack and pinion focuser with ball bearings \u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eOptional Motor focusers can easily be installed accepting 63mm accessories and a pressure fit lock  \u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eSupport for heavy camera loads and accessories\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eSupports 2\" and 1.25\" eyepiece accessories\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eCamera Angle Adjuster (CAA)\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eHD CNC tube rings and Vixen style dovetail bar\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eHandle for transportation and mounting accessories\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eRetractable dew shield retractable for transport\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eOptional 0.8x adjustable reducer and 1.0x Flattener available, each are threaded for a secure connection to the focuser with no flex.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cbr style=\"box-sizing: inherit; clear: both;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003eThe GÉAR 90 with 0.8x reducer has a larger field of view compared to the Esprit100. The GÉAR 90 is shown in RED\u003c\/span\u003e\u003cimg src=\"https:\/\/img1.wsimg.com\/isteam\/ip\/d66e8571-427a-4cd6-ac4e-4734ad6fa841\/astronomy_tools_fov.png\/:\/cr=t:0%25,l:0%25,w:100%25,h:100%25\/rs=w:600,cg:true\"\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Starfield","offers":[{"title":"Starfield Adjustable 2\" 0.8x Reducer \/ Starfield Adjustable 1.0x Flattener","offer_id":44013779189871,"sku":"SF-G90-06EDT","price":2270.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/Gear90_-_1a__17854__39076.jpg?v=1766562510"},{"product_id":"starfield-gear-series-60mm-quad-f-5-astrograph","title":"Starfield Gear60Q 60mm f\/5 Petzval Astrograph","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eStarfield Gear60Q 60mm f\/5 Petzval Astrograph\u003c\/strong\u003e is a compact, wide-field imaging refractor designed for astrophotographers who want a fast, corrected optical system without the usual backspacing headaches. With a 60mm aperture, 300mm focal length, f\/5 focal ratio, built-in corrective optics, and a 44mm image circle, the Gear60Q is built for sharp, wide-field deep-sky imaging with modern astronomy cameras.\u003c\/p\u003e\u003cp\u003eThe Gear60Q was selected by \u003cstrong\u003eAstronomy Magazine\u003c\/strong\u003e for its 15th Annual 2025 Star Products list, and current vendor information notes that orders include a free 32mm guide scope.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eWho Is This Product Best For?\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eThis telescope is best for astrophotographers who want a portable, full-frame-capable wide-field astrograph for nebulae, large star fields, Milky Way regions, and travel imaging. It is also a strong option for imagers who want the simplicity of a Petzval-style system where spacing is far less demanding than a separate refractor-and-flattener setup.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eWhy Choose This Product?\u003c\/strong\u003e\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for wide-field imaging:\u003c\/strong\u003e The 60mm f\/5 optical system provides a 300mm focal length that is ideal for large deep-sky targets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePetzval-style corrected design:\u003c\/strong\u003e The built-in corrective element helps deliver sharp stars across the field without needing a separate field flattener.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFPL53 APO element:\u003c\/strong\u003e The objective design uses FPL53 as the APO element for strong colour correction and clean stars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-frame image circle:\u003c\/strong\u003e The 44mm image circle is designed to illuminate a standard 36x24mm full-frame sensor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForgiving camera spacing:\u003c\/strong\u003e The working distance is listed as 41–61mm from the M48 thread, making setup easier than many conventional refractor systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging-focused focuser:\u003c\/strong\u003e The 2.5-inch rack-and-pinion focuser includes 1:10 reduction, 360-degree camera rotation, tilt adjustment, motor-focus capability, and an integrated 2-inch filter holder.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWide-field deep-sky astrophotography\u003c\/li\u003e\n\u003cli\u003eNebula imaging\u003c\/li\u003e\n\u003cli\u003eLarge star fields and Milky Way regions\u003c\/li\u003e\n\u003cli\u003eTravel imaging setups\u003c\/li\u003e\n\u003cli\u003eFull-frame or APS-C camera imaging\u003c\/li\u003e\n\u003cli\u003eCompact refractor imaging rigs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eThe Gear60Q uses an M48 camera-side thread and provides a 41–61mm working distance from that thread. Because the optical correction is built into the telescope, a separate field flattener is not required. The telescope includes a 2.5-inch rack-and-pinion focuser, camera angle adjuster\/manual rotator, tilt adjustment plate, integrated handle, long dovetail plate, and soft case with die-cut foam.\u003c\/p\u003e\u003cp\u003eThe case is designed with space for an optional focusing motor, such as a compatible Starfield, Pegasus Astro, or ZWO focusing motor, and room for an imaging camera. The focuser also includes an integrated holder for 2-inch filters placed in front of the camera.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eImportant Limitations\u003c\/strong\u003e\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging-first design:\u003c\/strong\u003e This telescope is optimized as an astrograph for astrophotography rather than as a general-purpose visual telescope.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount not included:\u003c\/strong\u003e A suitable tracking mount, camera, guide camera, controller, and power system are sold separately unless bundled.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessory planning still matters:\u003c\/strong\u003e Camera, focuser, filter, guiding, and cable choices should be matched to the imaging system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual setup still required:\u003c\/strong\u003e Although spacing is simplified, focus, tilt, balance, and guiding still affect final image quality.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h2\u003e\u003ch3\u003e\u003cstrong\u003eDoes the Gear60Q need a field flattener?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eNo. The Gear60Q has a built-in corrective element, so a separate field flattener is not required.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWhat is the focal length?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe Gear60Q is a 300mm focal length astrograph.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWhat is the focal ratio?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe focal ratio is f\/5.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eCan it cover a full-frame camera?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eYes. The vendor lists a 44mm image circle, which is intended to illuminate a standard 36x24mm full-frame sensor.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWhat camera spacing does it use?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe working distance is listed as 41–61mm from the M48 thread.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eDoes it include a case?\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eYes. The Gear60Q includes a soft case with die-cut foam and space for accessories.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eOur Recommendation\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eOntario Telescope recommends the Starfield Gear60Q for imagers who want a compact, fast, full-frame-capable wide-field astrograph that is easier to set up than a separate refractor and flattener combination. It is especially well suited for large nebulae, wide star fields, and portable imaging rigs where optical simplicity, mechanical quality, and clean full-field stars matter.\u003c\/p\u003e","brand":"Starfield","offers":[{"title":"Default Title","offer_id":44013799800943,"sku":"G60Q-05-01","price":1269.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/IMG_0002__65139.jpg?v=1766563148"},{"product_id":"starfield-optics-gear-series-115mm-f-7-triplet-gen-ii","title":"Starfield Optics Gear series 115MM F\/7 Triplet Gen II","description":"\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cstrong\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eNew for 2025 an upgraded 3.7\" focuser, Losmandy style dovetail plate, new handle design\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e \u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eThe Starfield Optics EDT115 f\/7 Triplet APO will take your wide field imaging game to new levels. Collect more light compared to 102mm telescopes and gain high magnification with an f\/7 focal length. Using fully multi-coated ED glass and internal baffles, you will experience sharp stars and amazing contrast.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eThe Starfield Optics Géar Series comes with a retractable dew shield, an optical report, heavy duty rings, a Vixen style dovetail, a handle designed to mount optional accessories, and a soft case with die-cut foam.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eTo make your imaging experience even better the Camera Angle Rotator will let you frame up your object easily without adding flex or changing your focuser position. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eWith a total weight of 16lbs, this telescope can still be used on modern 30lb payload class mounts. Collect more light compared to 102mm telescopes and gain high magnification with great focal length. Get an objective lens that is 20% larger than a 4\" telescope but without needing to upgrade to a larger mount! \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eMulticoated optics are standard and each Gear series telescope comes with a soft case with die cut foam, and\u003cspan class=\"x-el x-el-span c1-2z c1-30 c1-b c1-as c1-1j c1-1d c1-at\" style=\"box-sizing: inherit; font-weight: bold; letter-spacing: inherit; text-transform: inherit; line-height: inherit; font-size: inherit !important;\"\u003e optical test report\u003c\/span\u003e. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eAn adjustable dedicated 0.8x reducer takes this telescope to a new optical speed of f\/5.68 and focal length and 644mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e \u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003eRecently reviewed by Astronomy Magazine and selected as one of Astronomy's 2024 products of the year.  \u003ca href=\"https:\/\/www.astronomy.com\/observing\/we-test-starfield-optics-115mm-gear-triplet-apo\/\"\u003ehttps:\/\/www.astronomy.com\/observing\/we-test-starfield-optics-115mm-gear-triplet-apo\/ \u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px;\"\u003e\u003cspan class=\"x-el x-el-span c1-8y c1-8z c1-b c1-c c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit; letter-spacing: unset; text-transform: unset;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 class=\"x-el x-el-h4 c1-59 c1-3b c1-18 c1-19 c1-b0 c1-4x c1-4y c1-1b c1-1c c1-b c1-36 c1-c c1-26 c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit;\" role=\"heading\" aria-level=\"4\" data-ux=\"ContentHeading\" data-aid=\"ABOUT_HEADLINE_RENDERED1\" data-typography=\"HeadingDelta\"\u003eCheck out Trever from Astrobackyard use the Gear115 \u003c\/h4\u003e\n\u003ch4 class=\"x-el x-el-h4 c1-59 c1-3b c1-18 c1-19 c1-b0 c1-4x c1-4y c1-1b c1-1c c1-b c1-36 c1-c c1-26 c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit;\" role=\"heading\" aria-level=\"4\" data-ux=\"ContentHeading\" data-aid=\"ABOUT_HEADLINE_RENDERED1\" data-typography=\"HeadingDelta\"\u003e\u003ciframe title=\"YouTube video player\" src=\"\/\/www.youtube.com\/embed\/tXoM31jP2_E?si=_C_Fsj_fM_hGi761\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003c\/h4\u003e\n\u003cdiv class=\"x-el c1-1 c1-2 c1-18 c1-19 c1-1a c1-1b c1-1c c1-9z c1-a0 c1-a1 c1-a2 c1-a3 c1-a4 c1-a5 c1-a6 c1-a7 c1-a8 c1-a9 c1-aa c1-ab c1-ac c1-ad c1-ae c1-af c1-ag c1-ah c1-ai c1-aj c1-ak c1-al c1-am c1-an c1-ao c1-ap c1-aq c1-9a c1-b c1-52 c1-c c1-26 c1-d c1-e c1-f c1-g x-rt\" style=\"box-sizing: inherit;\" data-ux=\"ContentText\" data-aid=\"ABOUT_DESCRIPTION_RENDERED1\" data-typography=\"BodyAlpha\"\u003e\n\u003ch4 class=\"x-el x-el-h4 c1-59 c1-3b c1-18 c1-19 c1-b0 c1-4x c1-4y c1-1b c1-1c c1-b c1-36 c1-c c1-26 c1-d c1-e c1-f c1-g\" style=\"box-sizing: inherit;\" role=\"heading\" aria-level=\"4\" data-ux=\"ContentHeading\" data-aid=\"ABOUT_HEADLINE_RENDERED1\" data-typography=\"HeadingDelta\"\u003eHIGH QUALITY BUILD AND FEATURES\u003c\/h4\u003e\n\u003cul style=\"box-sizing: inherit; margin: auto 16px; padding-left: 1.3em;\"\u003e\n\u003cli\u003e3.7\" two speed rack and pinion focuser, with ball bearings, that is also fully rotatable rotation. Optional Motor focusers can easily be installed. Accepting 63mm accessories, and a pressure fit lock. Support for heavy camera loads and accessories.\u003c\/li\u003e\n\u003cli\u003eSupports 2\" and 1.25\" eyepiece accessories\u003c\/li\u003e\n\u003cli\u003eCamera Angle Adjuster (CAA)\u003c\/li\u003e\n\u003cli\u003eRaised HD CNC tube rings and Losmandy style dovetail bar\u003c\/li\u003e\n\u003cli\u003eNew Handle design for transportation and mounting accessories\u003c\/li\u003e\n\u003cli\u003eRetractable dew shield retractable for transport.\u003c\/li\u003e\n\u003cli\u003eOptional 0.8x adjustable reducer and 1.0x Flattener available. Threaded for a secure connection to the focuser with no flex.\u003c\/li\u003e\n\u003cli\u003eSoftcase with diecut foam for both your telescope and your accessories.  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Starfield","offers":[{"title":"Default Title","offer_id":44013888864367,"sku":"G115-07EDT-02","price":2650.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/Gear115-02c__01704.png?v=1766565608"},{"product_id":"starfield-optics-gear-70q-70mm-quadruplet","title":"Starfield Optics Gear70Q 70mm f\/5 Quad Petzval Astrograph","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Starfield Optics Gear70Q is a 70 mm f\/5 quadruplet Petzval astrograph built for wide-field deep-sky imaging. At 350 mm focal length it holds large nebulae, open clusters and the bigger galaxies inside a single frame, and the four-element Petzval layout corrects the field inside the telescope rather than at the camera end. The corrected image circle is 44 mm, which covers a full-frame sensor, so there is no separate field flattener to buy, thread on, or space out.\u003c\/p\u003e\n\u003cp\u003eThe camera end is an M48 male thread, fed by a Camera Angle Adjuster that carries a female M54 thread and an included M54-to-M48 step-down adapter. Working distance from that M48 thread runs 41–61 mm — a 20 mm window rather than a single figure, which leaves room for a filter drawer or an off-axis guider alongside the camera. The Gear70Q is an imaging instrument: Starfield Optics does not intend the Gear series quads for visual observing.\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 photograph the sky rather than look through it, and you want the widest, flattest field you can get out of a small refractor.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeep-sky imagers working wide:\u003c\/strong\u003e 350 mm at f\/5 is the range where the North America Nebula, the Pleiades and the Andromeda Galaxy sit comfortably inside the frame instead of running off the edges.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull-frame and APS-C shooters:\u003c\/strong\u003e the 44 mm corrected circle covers both, whether you are using a cooled astronomy camera or a DSLR or mirrorless body.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTravel and grab-and-go rigs:\u003c\/strong\u003e a 70 mm f\/5 tube is light enough for a small tracker-class or portable equatorial mount, and the supplied case is cut so the focus motor stays mounted between sessions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnyone building their first serious astrograph:\u003c\/strong\u003e the Petzval design removes the flattener spacing exercise entirely, which is the step that most often costs a beginner their corner stars. The wide 41–61 mm working distance means an imaging train that is close is also correct.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eVisual observers are the one group this is not built for — see \u003cem\u003eGood to Know Before You Order\u003c\/em\u003e below.\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\u003e70 mm (2.8″) aperture at f\/5:\u003c\/strong\u003e a fast focal ratio that shortens the exposure needed to reach faint nebulosity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e350 mm focal length:\u003c\/strong\u003e wide-field framing for large emission nebulae, open clusters and the nearer galaxies.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFour-element quad Petzval design:\u003c\/strong\u003e field correction is built into the optical train, so no additional flattener is required for wide-field imaging.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFPL-53 glass:\u003c\/strong\u003e the high-dispersion element that controls colour error and keeps bright stars free of violet fringing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFully multi-coated optics:\u003c\/strong\u003e maximises transmission and holds down internal reflections around bright stars.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e44 mm corrected image circle:\u003c\/strong\u003e full-frame coverage, edge to edge.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2.5″ dual-speed rack-and-pinion focuser:\u003c\/strong\u003e coarse and fine knobs, with the load capacity for a camera, filter wheel and off-axis guider together.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCamera Angle Adjuster (CAA):\u003c\/strong\u003e rotates the sensor to your chosen framing angle without breaking the imaging train apart.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVixen-style dovetail plate and heavy-duty rings:\u003c\/strong\u003e mounts on the widest range of equatorial heads, with accessory holes on the rings and a finder-shoe dovetail on the carry handle.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitted soft case:\u003c\/strong\u003e accessory cutouts inside, including one that lets the focus motor stay on the drawtube between sessions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eOptical \u0026amp; Mechanical Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA Petzval is a refractor with its corrector built in. Where a conventional doublet or triplet astrograph puts two elements at the front and relies on a separately purchased flattener near the camera to straighten the field, the Gear70Q carries four elements in two groups — the objective at the front and a correcting group further down the tube. The field arrives at the sensor already flat. That is why the specification sheet lists a 44 mm corrected circle with no flattener named alongside it: the correction is not an accessory, and there is no second optic whose spacing you have to solve.\u003c\/p\u003e\n\u003cp\u003eThe practical consequence shows up in the working distance. On a flattener-based system the backfocus figure is a target you hit within a millimetre or so, and missing it shows as elongated corner stars. On the Gear70Q the usable range is 41–61 mm from the M48 output, which is wide enough that a camera, a filter drawer and an adapter or two can be stacked in any sensible order and still land inside it. FPL-53 handles the colour correction across that field, and the 2.5″ dual-speed rack-and-pinion focuser carries the resulting imaging train without the drawtube sag that costs sharpness on longer exposures. A tilt adjustment accessory is supplied with the Gear series for the rare case where the sensor plane needs squaring up after everything is threaded and focused.\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 astrophotography:\u003c\/strong\u003e large emission and reflection nebulae, open clusters, and galaxies with generous apparent size.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMosaic panels:\u003c\/strong\u003e a flat 44 mm field makes adjacent panels stitch without corner mismatch.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNarrowband imaging from light-polluted skies:\u003c\/strong\u003e f\/5 keeps exposure times workable behind narrow filters.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePortable and travel imaging:\u003c\/strong\u003e dark-sky trips, star parties, and backyard setups where the rig goes out and comes in each night.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA second scope on a dual-rig mount:\u003c\/strong\u003e short enough and light enough to ride alongside a longer instrument.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCamera thread:\u003c\/strong\u003e the final telescope-side output is M48 male. Most cooled astronomy cameras and DSLR\/mirrorless T-adapters reach it directly or with a single M48 spacer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRotator thread:\u003c\/strong\u003e the CAA presents a female M54 thread, and the M54-to-M48 step-down adapter comes in the box. An M54 imaging train can also be built directly off the CAA if you prefer the larger thread.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking distance:\u003c\/strong\u003e 41–61 mm measured from the M48 thread. Sensor-to-flange distances vary by camera, so if you would like a second pair of eyes on your train, send us your camera, filter drawer and adapter list and we will add it up with you.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eField flattener:\u003c\/strong\u003e none needed, and none is offered for this model. The Petzval group does that job.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e a Vixen-style dovetail plate is fitted to the supplied rings, which fits the standard saddle on the great majority of equatorial mounts. The rings carry accessory holes, and the handle has a finder-shoe dovetail for a guide scope or a polar scope.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGuiding:\u003c\/strong\u003e at 350 mm a small guide scope is the usual approach — the \u003ca href=\"\/products\/starfield-50mm-guide-scope-gen-ii\"\u003eStarfield 50 mm Guide Scope Gen II\u003c\/a\u003e mounts to the finder shoe on the handle.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDew control:\u003c\/strong\u003e a heater strap sized to the dew shield paired with the \u003ca href=\"\/products\/starfield-four-channel-four-port-dew-controller\"\u003eStarfield four-channel dew controller\u003c\/a\u003e keeps the objective clear on damp nights. The add-on selector on this page carries the matched strap; if you are ordering by phone we will size it for you.\u003c\/li\u003e\n\u003c\/ul\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 imaging telescope, not a visual one.\u003c\/strong\u003e Starfield Optics states that the Gear series quads are not intended for visual observing. There is no diagonal or eyepiece path in the design, and the M48 output goes to a camera.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFocal length suits wide fields, not planets.\u003c\/strong\u003e At 350 mm the image scale is built for large deep-sky targets. Planetary and lunar close-ups are the province of much longer focal lengths.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA camera adapter is still yours to supply.\u003c\/strong\u003e The M54-to-M48 step-down comes with the telescope; the spacer or T-adapter that matches your particular camera’s backfocus does not. Send us the camera model and we will tell you what it takes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA tracking mount is assumed.\u003c\/strong\u003e Deep-sky exposures at 350 mm need an equatorial or tracker-class mount; the telescope ships with the dovetail plate that attaches to one, not the mount itself.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShipping weight is 12 lb as published by Starfield Optics\u003c\/strong\u003e — that figure covers the telescope in its case with the supplied rings and plate, so the tube alone rides lighter on the mount than the number suggests.\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 — this is one of the more forgiving imaging scopes to get right. The Petzval correction is internal, so there is no flattener to buy or space, and the working distance is a 41–61 mm range rather than a single target. Thread the camera to the M48 output, focus, and the corners come with it. If your train includes a filter drawer or off-axis guider, send us the parts list and we will confirm the stack lands in range before you order.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a field flattener?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The four-element Petzval design corrects the field internally, and Starfield Optics does not offer or require a flattener for this model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it cover my full-frame camera?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes — the corrected image circle is 44 mm, which takes in the 43.3 mm diagonal of a full-frame sensor. APS-C and the smaller cooled astronomy sensors sit well inside it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it visually with an eyepiece?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStarfield Optics does not intend the Gear series quads for visual observing. If visual is what you are after, the Starfield ED doublets are the range built for it, and we are happy to talk through the difference.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat cameras and threads does it take?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe telescope-side output is M48 male, reached through a CAA with a female M54 thread and the included M54-to-M48 adapter. Cooled astronomy cameras from the usual makers, and DSLR or mirrorless bodies on a T-adapter, all connect from there.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat else do I need to start imaging?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA tracking mount, a camera with the right spacer for its backfocus, and power. Guiding, filters and dew control are the usual next additions rather than requirements on night one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it different from the Gear60Q?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Gear70Q steps the aperture up from 60 mm to 70 mm and the focal length from 300 mm to 350 mm, both at f\/5. The extra aperture gathers more light for the same exposure, and the longer focal length trades a little field width for image scale. Both share the quad Petzval layout and the M48 imaging interface.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen is it not the right choice?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor visual observing, for planetary and lunar high-resolution work, and for small targets that want a long focal length. For wide-field deep-sky imaging on any sensor up to full frame, it is squarely in its element.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIn short: a 70 mm f\/5 quad Petzval astrograph at 350 mm focal length, with a 44 mm flat field that covers full frame and no flattener to buy or space. It connects at M48 with a generous 41–61 mm working distance, rides on a Vixen dovetail, and travels in a fitted case with the focus motor left in place — a wide-field imaging scope that asks for a tracking mount, a camera, and very little else.\u003c\/p\u003e","brand":"Starfield","offers":[{"title":"Default Title","offer_id":44014104215663,"sku":"G70Q-05-01","price":1999.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/2__19188__79269.jpg?v=1766571352"}],"url":"https:\/\/ontariotelescope.com\/collections\/starfield-gear.oembed","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}