{"title":"SVBONY Filter Drawers \u0026 Manual Wheels","description":"\u003cp\u003eSVBONY's SV226 magnetic filter drawers come in M42 (1.25\" and 2\") and M54 (2\") versions, with the SV226P for the SV238 OAG, a 2\" slider pack and drawer kits. The SV133 manual 5-position filter wheels, in 1.25\" and 2\", hold several filters for switching by hand. Part of \u003ca href=\"\/collections\/filter-drawers-and-manual-wheels\"\u003eFilter Drawers, Sliders \u0026amp; Holders\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"svbony-sv226p-filter-drawer-for-oag","title":"SVBONY SV226P M42 Filter Drawer for SV238 OAG (1.25″ and 2″)","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe SVBONY SV226P is a filter drawer designed to bolt directly to the SV238 off-axis guider. One drawer holds either a 1.25″ or a 2″ filter, held by H-type magnets and a side-locking screw that also seals against light leaks. It is machined in one piece from aluminium, is 21 mm thick, has an M42 camera-side thread, and includes an M42-to-M48 adapter. Twelve M2.5 threaded points attach it rigidly to the OAG.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/9_20260129115803_4154.webp?v=1791651293\" alt=\"SVBONY SV226P filter drawer specifications: thickness, threads, material and filter sizes\" 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 are building an imaging train around the SVBONY SV238 OAG and want to swap filters quickly without removing the camera, whether you image 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\u003e1.25″ and 2″ in one drawer:\u003c\/strong\u003e no extra holders needed when you change filter size.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual retention:\u003c\/strong\u003e H-type magnets plus a side-lock screw that keeps the drawer seated and light-tight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 M2.5 mounting points:\u003c\/strong\u003e a rigid connection to the SV238, keeping the guide-camera relationship stable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e21 mm thickness, M42 camera side:\u003c\/strong\u003e with an included M42-to-M48 adapter, and M28.5 support for 1.25″ filters.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOne-piece CNC aluminium body.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6_20260129115747_1597.webp?v=1791651294\" alt=\"SVBONY SV226P filter drawer with included M42 to M48 adapter\" 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 and broadband deep-sky imaging\u003c\/strong\u003e with quick filter changes behind an OAG.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact OAG imaging trains\u003c\/strong\u003e on refractors and Maksutovs, including the SVBONY MK127 with its reducer.\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\u003eDesigned for:\u003c\/strong\u003e the SVBONY SV238 off-axis guider.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera side:\u003c\/strong\u003e native M42 female thread; M42-to-M48 adapter included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackfocus:\u003c\/strong\u003e 21 mm. In SVBONY's example, a camera with 17.5 mm of flange depth, the SV226P and the SV238 with its M48 adapter total 55 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSV226P vs SV226:\u003c\/strong\u003e the SV226P has the mounting holes needed to bolt to the SV238. The plain SV226 M42 drawer cannot attach to the OAG.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/7_20260129115753_9528.webp?v=1791651293\" alt=\"SVBONY SV226P filter drawer installation with SV238 off-axis guider and camera\" 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\/8_20260129115758_7792.webp?v=1791651293\" alt=\"SVBONY SV226P filter drawer dimensional drawing in millimetres\" 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\/10_20260129115809_1053.webp?v=1791651293\" alt=\"SVBONY SV226P versus SV226 filter drawer comparison chart\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eIf you are combining the SV226P with a different camera or corrector, send us your setup and we will confirm the spacing with you.\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\u003eMade for the SV238:\u003c\/strong\u003e its mounting pattern matches that OAG. For a drawer without an OAG, the standard SV226 is the alternative.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFilters sold separately.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging only:\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. It bolts to the camera side of the SV238 with the M2.5 screws supplied with the OAG, and the camera threads onto its M42 side.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use 1.25″ and 2″ filters?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. The same drawer accepts either size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow thick is it?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e21 mm, which is the figure to include in your backfocus total.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIn short: a 21 mm, one-piece aluminium filter drawer that bolts to the SVBONY SV238 OAG, takes 1.25″ or 2″ filters, and keeps an OAG imaging train compact and light-tight.\u003c\/p\u003e","brand":"SvBony","offers":[{"title":"Default Title","offer_id":67720872460399,"sku":"W9184D","price":64.13,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/1_20260129115627_2332.webp?v=1791651565"},{"product_id":"svbony-sv133-1-25-filter-wheel","title":"SVBONY SV133 1.25″ Manual 5-Position Filter Wheel","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6387056765513746281600130.jpg\" alt=\"SVBONY SV133 1.25 inch 5-position filter wheel 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 SV133 is a manual filter wheel with five numbered positions for 1.25″ filters on the standard M28.5 × 0.6 thread. It lets you change filters with a camera attached or an eyepiece in place, without breaking down the optical train. It attaches to the focuser either through the supplied 1.25″ nosepiece or by T-thread, and ships with a 1.25″ eyepiece adapter and a T-2 camera adapter. The metal body weighs 351.5 g.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6387038647420964293794299.jpg\" alt=\"SVBONY SV133 1.25 inch filter wheel connection options\" 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 image with a T2-threaded DSLR adapter or astronomy camera and want to rotate between colour, narrowband or light-pollution filters during a session, or if you observe visually and like to compare filters on the same target without unscrewing them from eyepieces.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive numbered positions:\u003c\/strong\u003e precise positioning and numbered slots so you know which filter is in the path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.25″ filters, M28.5 × 0.6:\u003c\/strong\u003e the standard 1.25″ filter thread.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo ways to connect:\u003c\/strong\u003e 1.25″ focuser nosepiece or T-thread.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera or eyepiece side:\u003c\/strong\u003e T-2 camera adapter and 1.25″ eyepiece adapter both included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal body:\u003c\/strong\u003e with a locking ring and 42 mm metal dust cap.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6372991091907657623893092.jpg\" alt=\"SVBONY SV133 1.25 inch filter wheel five positions\" 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\u003eLRGB or narrowband imaging\u003c\/strong\u003e with a T2-fitted DSLR or CCD\/CMOS camera.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLunar and planetary filter comparison\u003c\/strong\u003e at the eyepiece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNebula filter testing\u003c\/strong\u003e visually, switching between filters on the same object.\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\u003eFilters:\u003c\/strong\u003e 1.25″ filters on the M28.5 × 0.6 thread, including SVBONY 1.25″ filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelescope side:\u003c\/strong\u003e 1.25″ focuser nosepiece (included) or T-thread connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera side:\u003c\/strong\u003e T-2 camera adapter included, for DSLR T-rings and T2-threaded astronomy cameras.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyepiece side:\u003c\/strong\u003e 1.25″ eyepiece adapter included.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6372991094000757517092469.jpg\" alt=\"SVBONY SV133 1.25 inch filter wheel included adapters\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eIf you are planning the wheel into an imaging train with a specific camera and corrector, send us your setup and we will work out the spacing with you.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWhat's in the Box\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSV133 1.25″ 5-position filter wheel\u003c\/li\u003e\n\u003cli\u003e1.25″ eyepiece adapter\u003c\/li\u003e\n\u003cli\u003e1.25″ focuser nosepiece\u003c\/li\u003e\n\u003cli\u003eT-2 camera adapter\u003c\/li\u003e\n\u003cli\u003eLocking ring\u003c\/li\u003e\n\u003cli\u003e42 mm metal dust cap\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6372991095682680068847882.jpg\" alt=\"SVBONY SV133 1.25 inch filter wheel product views\" 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\u003eManual operation:\u003c\/strong\u003e positions are changed by hand; there is no motor or computer control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical path length:\u003c\/strong\u003e SVBONY does not publish the wheel's thickness, which is the figure to account for in an imaging backfocus budget — we can help confirm it for your 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 your filters into the five positions, attach the nosepiece or T-thread to your focuser, and fit the camera or eyepiece adapter on the other side.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use it visually?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. The included 1.25″ eyepiece adapter lets you observe through the wheel and switch filters at the eyepiece.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it fit 2″ filters?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo, this wheel takes 1.25″ filters. SVBONY makes a separate 2″ version of the SV133.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it motorized?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo, it is a manual wheel.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIn short: a 351.5 g manual five-position wheel for 1.25″ filters, with nosepiece, T-2 and eyepiece adapters included, for quick filter changes in imaging or visual setups.\u003c\/p\u003e","brand":"SvBony","offers":[{"title":"Default Title","offer_id":67722207297647,"sku":"W9103A","price":68.73,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/w9103a_20250807110149_7415_20260820160554_7023.webp?v=1791670030"},{"product_id":"svbony-sv133-2-filter-wheel","title":"SVBONY SV133 2″ Manual 5-Position Filter Wheel","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/w9103b-1_20250807110053_2496_20260810142735_7674.webp?v=1791670291\" alt=\"SVBONY SV133 2 inch manual 5-position filter wheel for deep-sky astrophotography\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe SVBONY SV133 2″ is a manual filter wheel with five positions for 2″ filters. It lets you switch filters with a camera attached or a 2″ eyepiece in place, so a session is not interrupted by unthreading filters. SVBONY lists it for 2″ eyepieces and for DSLR and CCD cameras, and builds it for frequent, long-term use.\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 or observe with 2″ filters — narrowband, light-pollution or colour — and want to rotate between up to five of them during a session without breaking down your optical train.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive positions for 2″ filters:\u003c\/strong\u003e organized storage and consistent switching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch without disassembly:\u003c\/strong\u003e change filters with a camera or eyepiece attached.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera or eyepiece use:\u003c\/strong\u003e SVBONY shows connections for both.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSturdy construction\u003c\/strong\u003e for frequent use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/1_20260304094234_2208.webp?v=1791670291\" alt=\"SVBONY SV133 2 inch filter wheel for imaging and visual observing\" 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 and broadband deep-sky imaging\u003c\/strong\u003e with a DSLR or astronomy camera.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual filter comparison\u003c\/strong\u003e with 2″ nebula filters on the same target.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/2_20260304094236_5263.webp?v=1791670291\" alt=\"SVBONY SV133 2 inch filter wheel five filter positions\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eSVBONY shows the SV133 2″ in two configurations. With a camera and telescope:\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6386547456116331317335737.jpg?v=1791669869\" alt=\"SVBONY SV133 2 inch filter wheel connected with camera and telescope\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eAnd with an eyepiece and telescope:\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6386547463888701006015642.jpg?v=1791669868\" alt=\"SVBONY SV133 2 inch filter wheel connected with eyepiece and telescope\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilters:\u003c\/strong\u003e 2″ filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyepieces:\u003c\/strong\u003e 2″ eyepieces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCameras:\u003c\/strong\u003e DSLR and CCD cameras.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM48-to-M42 adapter:\u003c\/strong\u003e not included.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSVBONY does not publish the wheel's thread sizes or optical path length for this version. Send us your camera, corrector and focuser details and we will confirm the connections and spacing before you order.\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\u003cstrong\u003eM48-to-M42 adapter not included.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual operation:\u003c\/strong\u003e no motor or computer control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e not published by SVBONY.\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 your filters into the five positions, attach the wheel between telescope and camera or eyepiece, and turn the wheel to select a filter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use it visually?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. SVBONY shows it connected to an eyepiece and telescope as well as to a camera.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it fit 1.25″ filters?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis version is for 2″ filters. SVBONY makes a separate 1.25″ SV133.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it motorized?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo, it is a manual wheel.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIn short: a manual five-position wheel for 2″ filters that lets you change filters with a camera or eyepiece attached, for imaging and visual sessions.\u003c\/p\u003e","brand":"SvBony","offers":[{"title":"Default Title","offer_id":67722264576111,"sku":"W9103B","price":92.33,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/w9103b-1_20250807110053_2496_20260810142735_7674.webp?v=1791670291"},{"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\/collections\/filter-drawers-svbony.oembed","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}