{"title":"Illuminated Reticle Eyepieces","description":"\u003cp\u003eCrosshair and illuminated-reticle eyepieces for polar alignment, guide-star checks, centring and measuring.\u003c\/p\u003e","products":[{"product_id":"svbony-sv152-20mm-illuminated-crosshair-eyepiece","title":"SVBONY SV152 20mm 70° Illuminated Crosshair Eyepiece (1.25″)","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378650922972046035213800.jpg?v=1791669940\" alt=\"SVBONY SV152 20mm illuminated crosshair eyepiece key visual\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe SVBONY SV152 is a 1.25″, 20 mm eyepiece with a 70° apparent field and an illuminated single crosshair reticle. A clip-on LED illuminator lights the crosshair red, with adjustable brightness, so you can centre a star precisely without losing night vision. The optical design is 5 elements in 4 groups, fully multi-coated, with 16 mm eye relief and a 25 mm field stop. It runs on two 1.5 V button cells and weighs 221 g.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378650923167195637140395.jpg?v=1791669940\" alt=\"SVBONY SV152 illuminated crosshair eyepiece overview\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThis is a good match if you need a reticle eyepiece for centring stars during mount alignment, manual guiding, aligning a finder or guide scope with your main telescope, or checking that a target sits dead-centre before handing over to a camera.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIlluminated single crosshair:\u003c\/strong\u003e red LED with adjustable brightness to suit faint or bright stars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 mm, 70° field:\u003c\/strong\u003e a wide view that makes it easy to find a star before centring it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16 mm eye relief:\u003c\/strong\u003e comfortable viewing with a rubber eyecup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully multi-coated, blackened lens edges:\u003c\/strong\u003e good light transmission on faint stars and reduced internal reflections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-step anodised aluminium body:\u003c\/strong\u003e matte finish that resists glare.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378650923307153642236390.jpg?v=1791669940\" alt=\"SVBONY SV152 crosshair reticle detail\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378650923418200729117336.jpg?v=1791669940\" alt=\"SVBONY SV152 LED illuminator brightness control\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378650923502022782309863.jpg?v=1791669940\" alt=\"SVBONY SV152 eyepiece feature panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eOptical Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe SV152 uses a 5-element, 4-group design with full multi-coating and blackened edges. The 25 mm field stop with a 20 mm focal length gives a true field that is generous for a reticle eyepiece, and the crosshair sits at the focal plane so it stays sharp as you focus on the star. The bottom of the barrel carries a standard M28.5 x 0.6 filter thread.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378650923559350397917334.jpg?v=1791669940\" alt=\"SVBONY SV152 eyepiece optical structure\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount alignment\u003c\/strong\u003e by centring alignment stars precisely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual guiding\u003c\/strong\u003e with a guide scope or off-axis setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinder and guide-scope alignment\u003c\/strong\u003e with the main telescope.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378650923616490278064067.jpg?v=1791669940\" alt=\"SVBONY SV152 illuminated eyepiece in use\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel:\u003c\/strong\u003e 1.25″, fits any 1.25″ focuser or diagonal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter thread:\u003c\/strong\u003e M28.5 x 0.6 standard 1.25″ filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e two 1.5 V button cells, included.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378650923645861897518163.jpg?v=1791669940\" alt=\"SVBONY SV152 eyepiece dimensions\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWhat's in the Box\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1 x 1.25″ SWA 70° 20 mm eyepiece\u003c\/li\u003e\n\u003cli\u003e1 x LED illuminator\u003c\/li\u003e\n\u003cli\u003e2 x rubber eyepiece caps\u003c\/li\u003e\n\u003cli\u003e2 x 1.5 V button cells\u003c\/li\u003e\n\u003cli\u003e1 x lens cloth\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378650923706432435645125.jpg?v=1791669940\" alt=\"SVBONY SV152 illuminated eyepiece package contents\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBatteries:\u003c\/strong\u003e two 1.5 V button cells are included; spares are a standard size.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle crosshair:\u003c\/strong\u003e the reticle is a plain crosshair rather than a double-line or scaled reticle.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs it difficult to set up?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo. Fit the illuminator, insert the eyepiece in the focuser, focus on a star and turn up the LED until the crosshair is just visible.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use it for general observing?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. With the LED off it is a 20 mm, 70° eyepiece, though the crosshair remains in the view.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the brightness adjustable?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. The LED brightness is adjustable so the crosshair can be set dim for faint stars.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIn short: a 20 mm, 70° 1.25″ eyepiece with an adjustable red-lit crosshair for centring stars, aligning finders and guiding by eye.\u003c\/p\u003e","brand":"SvBony","offers":[{"title":"Default Title","offer_id":67722188587119,"sku":"W9115A","price":91.2,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/w9115a-0_20251231153727_0043.webp?v=1791669940"},{"product_id":"svbony-f9132a-12-5mm-illuminated-reticle-eyepiece","title":"SVBONY 12.5mm Illuminated Reticle Eyepiece 1.25″ (Double Crosshair)","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378847980661524467861794.jpg?v=1791669969\" alt=\"SVBONY F9132A 12.5mm illuminated reticle eyepiece overview\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe SVBONY F9132A is a 1.25″, 12.5 mm Plössl eyepiece with an illuminated double-crosshair reticle. A red LED lights the reticle, with stepless brightness control powered by three 1.5 V alkaline batteries, so the crosshairs stay visible against a dark sky without overwhelming faint stars. The four-element, fully multi-coated Plössl gives a 40° apparent field with 11 mm of eye relief. The aluminium body has a matte finish, measures 70 x 60 x 60 mm, and weighs 170 g.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378847982730000483374151.jpg?v=1791669969\" alt=\"SVBONY F9132A double crosshair illuminated reticle\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThis is a good match if you need an accurate centring reference in the eyepiece: aligning a go-to mount on its alignment stars, centring a guide star, or checking polar alignment and tracking for astrophotography.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed LED double-crosshair reticle:\u003c\/strong\u003e a precise centre reference that stays readable at night.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStepless brightness:\u003c\/strong\u003e set the reticle just bright enough to see against the star.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12.5 mm focal length, 40° field:\u003c\/strong\u003e moderate power for accurate centring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11 mm eye relief:\u003c\/strong\u003e comfortable for longer alignment sessions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully multi-coated optics with blackened edges and inner walls:\u003c\/strong\u003e for bright, high-contrast star images.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree 1.5 V alkaline batteries:\u003c\/strong\u003e power the illuminator.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378847984697513418194637.jpg?v=1791669969\" alt=\"SVBONY F9132A illuminated eyepiece optics and coatings\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378847986643499648746765.jpg?v=1791669969\" alt=\"SVBONY F9132A illuminated eyepiece brightness control and battery\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eOptical Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe F9132A uses a four-element Plössl design with the reticle placed at the eyepiece's focal plane, so the crosshairs and the star come to focus together. The magnification it gives is your telescope's focal length divided by 12.5: 80x on a 1000 mm telescope, 40x on a 500 mm one. That is enough power to centre a star accurately while keeping a 40° field around it.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6387090692454091835650056.jpg?v=1791669969\" alt=\"SVBONY F9132A 12.5mm illuminated eyepiece detail panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGo-to alignment:\u003c\/strong\u003e centring alignment stars precisely for better pointing accuracy.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePolar alignment checks and drift alignment.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuide-star centring:\u003c\/strong\u003e for manual guiding or confirming a star is centred.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel:\u003c\/strong\u003e 1.25″, for any 1.25″ focuser or diagonal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e three 1.5 V alkaline batteries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e this listing is the eyepiece alone. SVBONY also offers it with a UV\/IR filter; get in touch if you want that combination.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6378848046525539683031103.jpg?v=1791669969\" alt=\"SVBONY F9132A illuminated reticle eyepiece specifications and package\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModerate field:\u003c\/strong\u003e at 40° apparent field it is a centring and alignment tool rather than a wide-field viewing eyepiece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBatteries:\u003c\/strong\u003e three 1.5 V alkaline cells power the illuminator.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs it difficult to set up?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo. Insert it like any 1.25″ eyepiece, switch on the illuminator and turn the brightness up until the crosshairs are just visible against the star.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat magnification will it give?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYour telescope's focal length divided by 12.5. On a 1000 mm telescope that is 80x.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a double crosshair?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe two parallel lines frame the star, which makes it easier to judge when it is exactly centred than a single line would.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIn short: a 12.5 mm, 40° 1.25″ Plössl with a stepless red double-crosshair reticle, for accurate star centring during alignment and guiding.\u003c\/p\u003e","brand":"SvBony","offers":[{"title":"Eyepiece","offer_id":67722308911215,"sku":"F9132A","price":41.31,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/f9132a-1_20250807113846_5266_20260822140244_2615.webp?v=1791670495"}],"url":"https:\/\/ontariotelescope.com\/collections\/illuminated-reticle-eyepieces.oembed","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}