{"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","url":"https:\/\/ontariotelescope.com\/products\/svbony-sv152-20mm-illuminated-crosshair-eyepiece","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}