{"product_id":"svbony-sv226-m42-filter-drawer","title":"SVBONY SV226 M42 Magnetic Filter Drawer (1.25″ and 2″)","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6385784507221610272664039.jpg?v=1791670010\" alt=\"SVBONY SV226 M42 filter drawer integrated anti-light-leak design\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe SVBONY SV226 is a 21 mm filter drawer for imaging trains, CNC-machined from aluminium as one integrated, light-tight piece. Its telescope side is M48 x 0.75 female and its camera side M42 x 0.75 male, and the sliders take 2″ filters directly or 1.25″ filters through the supplied adapter. Two pairs of magnets hold the slider in place, and a side lock screw removes any play. SVBONY lists the net weight as 400 g.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThis is a good match if you image with a dedicated astronomy camera and want to change filters at the telescope without removing the camera, keeping focus and framing where you set them, in broadband or narrowband.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated anti-light-leak design:\u003c\/strong\u003e a sealed path for long exposures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble pair of magnets:\u003c\/strong\u003e a firmer hold than screw retention, with easier installation and removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.25″ and 2″ in one drawer:\u003c\/strong\u003e 2″ sliders plus a 2″-to-1.25″ adapter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e21 mm thickness:\u003c\/strong\u003e a fixed figure for your backfocus total; the side lock screw adjusts tension.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM42-M48 adapter included:\u003c\/strong\u003e resolves thread differences between camera and filter mount.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6385784508564864989514849.jpg?v=1791670010\" alt=\"SVBONY SV226 M42 filter drawer double magnet retention\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eMechanical Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eMachining the frame as one piece keeps the faces parallel and the light path sealed. The filter mounts are threaded M48 x 0.75 and M28.5 x 0.6, so standard 2″ and 1.25″ filters thread in directly, and at 21 mm the drawer fits into most 55 mm corrector budgets alongside a camera and spacers.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6385784510039217996085879.jpg?v=1791670010\" alt=\"SVBONY SV226 M42 filter drawer CNC integrated molding\" 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\/6385784511438979911411252.jpg?v=1791670010\" alt=\"SVBONY SV226 M42 filter drawer 21 mm thickness\" 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\/6385784513724117598035615.jpg?v=1791670010\" alt=\"SVBONY SV226 M42 filter drawer parameters drawing\" 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\u003eNarrowband imaging\u003c\/strong\u003e with H-alpha, OIII and SII filters in separate sliders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband and LRGB imaging\u003c\/strong\u003e with quick changes between filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight-pollution and dual-band filters\u003c\/strong\u003e swapped in and out as conditions change.\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\u003ePosition in the train:\u003c\/strong\u003e between the telescope or focal reducer and the camera.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eListed by SVBONY for:\u003c\/strong\u003e the SV550 and SV503 OTAs and the F9198F and F9198K cameras.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra sliders and adapters:\u003c\/strong\u003e SVBONY sells spare 2″ sliders and 2″-to-1.25″ adapters for this M42 drawer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOAG builds:\u003c\/strong\u003e for the SV238 off-axis guider, SVBONY's SV226P is the drawer with the matching mounting holes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6385784516836176184917625.jpg?v=1791670010\" alt=\"SVBONY SV226 M42 filter drawer use with telescope connection diagram\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eSend us your telescope, reducer and camera and we will work out the spacing around the 21 mm drawer with you.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWhat's in the Box\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDrawer frame x1\u003c\/li\u003e\n\u003cli\u003e2″ filter slider x2\u003c\/li\u003e\n\u003cli\u003e2″-1.25″ filter adapter x1\u003c\/li\u003e\n\u003cli\u003eM42F-M48M adapter x1\u003c\/li\u003e\n\u003cli\u003ePlastic case x1\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6385784518340097759114222.jpg?v=1791670010\" alt=\"SVBONY SV226 M42 filter drawer storage case\" 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\u003cstrong\u003eFilters sold separately.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e21 mm of backfocus:\u003c\/strong\u003e the drawer counts toward your corrector's spacing figure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging accessory:\u003c\/strong\u003e it has no application in a visual train.\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. Thread the drawer between your telescope or reducer and the camera, mount each filter in a slider and slide it in; the magnets locate it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use 1.25″ and 2″ filters?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. The sliders take 2″ filters and the supplied adapter takes 1.25″.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it attach to the SV238 OAG?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe SV226P is the version SVBONY makes for the SV238; this drawer threads inline instead.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIn short: a 21 mm, 400 g magnetic filter drawer with M48 and M42 threads, two 2″ sliders, a 1.25″ adapter and an M42-M48 adapter, for fast filter changes behind the telescope.\u003c\/p\u003e","brand":"SvBony","offers":[{"title":"Drawer + 2 Sliders","offer_id":67722273292399,"sku":"W9184A","price":61.28,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/sv226-w9184a-1_20251125091849_8963.webp?v=1791670336","url":"https:\/\/ontariotelescope.com\/products\/svbony-sv226-m42-filter-drawer","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}