{"product_id":"svbony-sv154-15mm-70-degree-eyepiece","title":"SVBONY SV154 15mm 70° Super Wide Angle Eyepiece (1.25″)","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6371980434197371481911336.jpg?v=1791670150\" alt=\"SVBONY SV154 15mm 70° 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 SV154 15 mm is a 1.25″ super wide angle eyepiece with a 70° apparent field of view. Its 5 elements in 4 groups are fully multi-coated, with blackened lens edges and anti-reflection threads inside the barrel. It has 13 mm of eye relief, an 18.8 mm field stop, a twist-up eyecup and a barrel safety recess, and the barrel is threaded for standard 1.25″ filters (M28.5 x 0.6).\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThis is a good match if you want a medium-power eyepiece with a wider view than a standard Plössl, for framing star clusters, the Moon and larger planetary nebulae, or for following planets on a mount without tracking.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e70° apparent field:\u003c\/strong\u003e a wide, immersive view at medium power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13 mm eye relief\u003c\/strong\u003e with a twist-up eyecup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5 elements \/ 4 groups, fully multi-coated:\u003c\/strong\u003e high-index glass for sharp, contrasty views.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlackened lens edges and threaded interior:\u003c\/strong\u003e controls stray light for contrast.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety recess on the barrel:\u003c\/strong\u003e reduces the chance of the eyepiece slipping out of a focuser or diagonal.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6371980434197684081486003.jpg?v=1791670150\" alt=\"SVBONY SV154 15mm eyepiece feature panel\" 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\/6373103651844209534372410.jpg?v=1791670150\" alt=\"SVBONY SV154 15mm eyepiece construction\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eOptical Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eWith a 15 mm focal length and an 18.8 mm field stop, the SV154 delivers a 70° apparent field. Magnification is your telescope's focal length divided by 15; on a 900 mm telescope that is 60x. The fully multi-coated 5-element, 4-group layout keeps the view bright, and the blackened edges and threaded barrel interior control internal reflections.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6373103673260687509520447.jpg?v=1791670150\" alt=\"SVBONY SV154 15mm 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\u003eLunar and planetary observing\u003c\/strong\u003e at medium power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen and globular clusters\u003c\/strong\u003e framed with surrounding star field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral-purpose observing\u003c\/strong\u003e as a mid-range eyepiece in a 1.25″ set.\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″, fits all standard 1.25″ focusers and diagonals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter thread:\u003c\/strong\u003e M28.5 x 0.6 for standard 1.25″ filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWith a Barlow:\u003c\/strong\u003e SVBONY also offers the SV154 with a 2x or 3x Barlow as bundle styles; ask us if you would like one.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6373103678402672102548124.jpg?v=1791670150\" alt=\"SVBONY SV154 15mm eyepiece specifications\" 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\u003eEye relief:\u003c\/strong\u003e 13 mm. Some eyeglass wearers prefer longer; the twist-up eyecup can be lowered for glasses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eListing:\u003c\/strong\u003e this is the eyepiece on its own.\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. It slides into any 1.25″ focuser or diagonal and is held by the usual set screw or compression ring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat magnification will I get?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDivide your telescope's focal length by 15. A 650 mm telescope gives about 43x; a 1250 mm telescope about 83x.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use filters with it?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. The barrel takes standard 1.25″ filters.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIn short: a 15 mm, 70° 1.25″ eyepiece with 13 mm eye relief and fully multi-coated optics that gives a wide medium-power view in any 1.25″ focuser.\u003c\/p\u003e","brand":"SvBony","offers":[{"title":"SV154","offer_id":67722233643119,"sku":"W9117A","price":59.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/w9117a-0_20251231154035_3991.webp?v=1791670149","url":"https:\/\/ontariotelescope.com\/products\/svbony-sv154-15mm-70-degree-eyepiece","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}