{"product_id":"astroasis-oagm48","title":"AstrOasis OAG(Choose Adapter Size)","description":"\u003ch2 data-start=\"0\" data-end=\"109\"\u003eAstroAsis OAG (M48) Off-Axis Guider — Adjustable Thickness, Precision Prism Control, Filter Wheel Friendly\u003c\/h2\u003e\n\u003cp data-start=\"111\" data-end=\"623\"\u003eIf you’ve ever built an imaging train and found out (at the worst possible moment) that your OAG + filter wheel combo causes back-clipping or awkward assembly headaches, the \u003cstrong data-start=\"285\" data-end=\"314\"\u003eAstroAsis Oasis OAG (M48)\u003c\/strong\u003e is basically your “thank you” note to future-you. It was designed specifically to solve the \u003cstrong data-start=\"407\" data-end=\"424\"\u003eback clipping\u003c\/strong\u003e problem users ran into with different camera brands and third-party OAGs—then evolved into a surprisingly clever, highly configurable guider with precision prism control and excellent light sealing.\u003c\/p\u003e\n\u003cul data-start=\"625\" data-end=\"1428\"\u003e\n\u003cli data-start=\"625\" data-end=\"754\"\u003e\n\u003cp data-start=\"627\" data-end=\"754\"\u003eDesigned to \u003cstrong data-start=\"639\" data-end=\"669\"\u003eavoid back-clipping issues\u003c\/strong\u003e commonly seen when pairing filter wheels + OAGs across different camera ecosystems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"755\" data-end=\"877\"\u003e\n\u003cp data-start=\"757\" data-end=\"877\"\u003e\u003cstrong data-start=\"757\" data-end=\"790\"\u003eConfigurable total thickness:\u003c\/strong\u003e \u003cstrong data-start=\"791\" data-end=\"819\"\u003e16.5mm \/ 17.0mm \/ 17.5mm\u003c\/strong\u003e to hit backfocus targets without creative spacing hacks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"878\" data-end=\"1045\"\u003e\n\u003cp data-start=\"880\" data-end=\"926\"\u003e\u003cstrong data-start=\"880\" data-end=\"911\"\u003eDouble-helix focusing mount\u003c\/strong\u003e does two jobs:\u003c\/p\u003e\n\u003cul data-start=\"929\" data-end=\"1045\"\u003e\n\u003cli data-start=\"929\" data-end=\"955\"\u003e\n\u003cp data-start=\"931\" data-end=\"955\"\u003eFocus the guide camera\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"958\" data-end=\"1045\"\u003e\n\u003cp data-start=\"960\" data-end=\"1045\"\u003e\u003cstrong data-start=\"960\" data-end=\"1002\"\u003ePrecisely adjust prism height\/position\u003c\/strong\u003e without disassembling your imaging train\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1046\" data-end=\"1134\"\u003e\n\u003cp data-start=\"1048\" data-end=\"1134\"\u003e\u003cstrong data-start=\"1048\" data-end=\"1090\"\u003eMulti-brand filter wheel compatibility\u003c\/strong\u003e thanks to multiple mounting hole patterns\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1135\" data-end=\"1288\"\u003e\n\u003cp data-start=\"1137\" data-end=\"1288\"\u003eStrong emphasis on \u003cstrong data-start=\"1156\" data-end=\"1186\"\u003elight blocking and sealing\u003c\/strong\u003e between the OAG, adapters, and filter wheel—designed to reduce internal reflections and light leaks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1289\" data-end=\"1428\"\u003e\n\u003cp data-start=\"1291\" data-end=\"1428\"\u003eOptional \u003cstrong data-start=\"1300\" data-end=\"1335\"\u003emotorized guide camera focusing\u003c\/strong\u003e via the add-on kit (for remote\/observatory users who don’t want to touch anything at 2 a.m.)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1430\" data-end=\"1481\"\u003ePrecision prism adjustment (the “secret sauce”)\u003c\/h3\u003e\n\u003cul data-start=\"1482\" data-end=\"2109\"\u003e\n\u003cli data-start=\"1482\" data-end=\"1617\"\u003e\n\u003cp data-start=\"1484\" data-end=\"1617\"\u003eThe prism pillar uses \u003cstrong data-start=\"1506\" data-end=\"1536\"\u003eM28.5x0.6 external threads\u003c\/strong\u003e, matching the common \u003cstrong data-start=\"1558\" data-end=\"1587\"\u003eM28.5x0.6 internal thread\u003c\/strong\u003e found on many guide cameras\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1618\" data-end=\"1855\"\u003e\n\u003cp data-start=\"1620\" data-end=\"1691\"\u003eYou can raise\/lower the prism using the dial on the double-helix mount:\u003c\/p\u003e\n\u003cul data-start=\"1694\" data-end=\"1855\"\u003e\n\u003cli data-start=\"1694\" data-end=\"1741\"\u003e\n\u003cp data-start=\"1696\" data-end=\"1741\"\u003e\u003cstrong data-start=\"1696\" data-end=\"1716\"\u003e6mm total travel\u003c\/strong\u003e per full dial rotation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1744\" data-end=\"1791\"\u003e\n\u003cp data-start=\"1746\" data-end=\"1791\"\u003e\u003cstrong data-start=\"1746\" data-end=\"1774\"\u003e1mm per large graduation\u003c\/strong\u003e (0–5 markings)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1794\" data-end=\"1855\"\u003e\n\u003cp data-start=\"1796\" data-end=\"1855\"\u003e\u003cstrong data-start=\"1796\" data-end=\"1827\"\u003e0.05mm per small graduation\u003c\/strong\u003e (20 subdivisions per 1mm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1856\" data-end=\"1999\"\u003e\n\u003cp data-start=\"1858\" data-end=\"1999\"\u003eStart position reference: with travel set to minimum and prism fully down, distance from prism front edge to optical axis center is \u003cstrong data-start=\"1990\" data-end=\"1997\"\u003e8mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2000\" data-end=\"2109\"\u003e\n\u003cp data-start=\"2002\" data-end=\"2109\"\u003eAdjustments can be made \u003cstrong data-start=\"2026\" data-end=\"2058\"\u003efully assembled on the scope\u003c\/strong\u003e, even at night, without breaking the imaging train\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"2111\" data-end=\"2127\"\u003eSpecifications\u003c\/h1\u003e\n\u003cul data-start=\"2128\" data-end=\"3455\"\u003e\n\u003cli data-start=\"2128\" data-end=\"2187\"\u003e\n\u003cp data-start=\"2130\" data-end=\"2187\"\u003e\u003cstrong data-start=\"2130\" data-end=\"2147\"\u003eProduct type:\u003c\/strong\u003e Off-Axis Guider (OAG), \u003cstrong data-start=\"2171\" data-end=\"2185\"\u003eM48 system\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2188\" data-end=\"2222\"\u003e\n\u003cp data-start=\"2190\" data-end=\"2222\"\u003e\u003cstrong data-start=\"2190\" data-end=\"2205\"\u003ePrism size:\u003c\/strong\u003e \u003cstrong data-start=\"2206\" data-end=\"2220\"\u003e8mm x 14mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2223\" data-end=\"2283\"\u003e\n\u003cp data-start=\"2225\" data-end=\"2283\"\u003e\u003cstrong data-start=\"2225\" data-end=\"2243\"\u003ePrism coating:\u003c\/strong\u003e Anti-reflective coating on both sides\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2284\" data-end=\"2471\"\u003e\n\u003cp data-start=\"2286\" data-end=\"2344\"\u003e\u003cstrong data-start=\"2286\" data-end=\"2313\"\u003eConfigurable thickness:\u003c\/strong\u003e \u003cstrong data-start=\"2314\" data-end=\"2342\"\u003e16.5mm \/ 17.0mm \/ 17.5mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2347\" data-end=\"2471\"\u003e\n\u003cli data-start=\"2347\" data-end=\"2379\"\u003e\n\u003cp data-start=\"2349\" data-end=\"2379\"\u003eOAG body thickness: \u003cstrong data-start=\"2369\" data-end=\"2377\"\u003e12mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2382\" data-end=\"2471\"\u003e\n\u003cp data-start=\"2384\" data-end=\"2471\"\u003eUses threaded couplings of \u003cstrong data-start=\"2411\" data-end=\"2436\"\u003e4.5mm \/ 5.0mm \/ 5.5mm\u003c\/strong\u003e to reach total thickness options\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2472\" data-end=\"2746\"\u003e\n\u003cp data-start=\"2474\" data-end=\"2581\"\u003e\u003cstrong data-start=\"2474\" data-end=\"2508\"\u003eTelescope-side thread options:\u003c\/strong\u003e Supports \u003cstrong data-start=\"2518\" data-end=\"2549\"\u003eM68x1 \/ M54x0.75 \/ M48x0.75\u003c\/strong\u003e via interchangeable couplings\u003c\/p\u003e\n\u003cul data-start=\"2584\" data-end=\"2746\"\u003e\n\u003cli data-start=\"2584\" data-end=\"2658\"\u003e\n\u003cp data-start=\"2586\" data-end=\"2658\"\u003eEach thread set includes \u003cstrong data-start=\"2611\" data-end=\"2638\"\u003e3 coupling thicknesses:\u003c\/strong\u003e 4.5 \/ 5.0 \/ 5.5mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2661\" data-end=\"2746\"\u003e\n\u003cp data-start=\"2663\" data-end=\"2746\"\u003eKit includes \u003cstrong data-start=\"2676\" data-end=\"2687\"\u003eone set\u003c\/strong\u003e of couplings (thread type specified as M68, M54, or M48)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2747\" data-end=\"2920\"\u003e\n\u003cp data-start=\"2749\" data-end=\"2819\"\u003e\u003cstrong data-start=\"2749\" data-end=\"2789\"\u003eFocusing\/prism adjustment mechanism:\u003c\/strong\u003e Double-helix focusing mount\u003c\/p\u003e\n\u003cul data-start=\"2822\" data-end=\"2920\"\u003e\n\u003cli data-start=\"2822\" data-end=\"2859\"\u003e\n\u003cp data-start=\"2824\" data-end=\"2859\"\u003eTravel: \u003cstrong data-start=\"2832\" data-end=\"2857\"\u003e6mm per full rotation\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2862\" data-end=\"2920\"\u003e\n\u003cp data-start=\"2864\" data-end=\"2920\"\u003eAdjustment resolution: \u003cstrong data-start=\"2887\" data-end=\"2918\"\u003e0.05mm per small graduation\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2921\" data-end=\"3024\"\u003e\n\u003cp data-start=\"2923\" data-end=\"3024\"\u003e\u003cstrong data-start=\"2923\" data-end=\"2968\"\u003eGuide camera interface (common standard):\u003c\/strong\u003e Prism pillar front uses \u003cstrong data-start=\"2993\" data-end=\"3022\"\u003eM28.5x0.6 external thread\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3025\" data-end=\"3136\"\u003e\n\u003cp data-start=\"3027\" data-end=\"3136\"\u003e\u003cstrong data-start=\"3027\" data-end=\"3072\"\u003eFilter wheel compatibility (as provided):\u003c\/strong\u003e MokKong \/ Ready Player One \/ QHYCCD \/ TuPu (Graph) \/ Zhenwang\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3137\" data-end=\"3253\"\u003e\n\u003cp data-start=\"3139\" data-end=\"3253\"\u003e\u003cstrong data-start=\"3139\" data-end=\"3166\"\u003eLight sealing features:\u003c\/strong\u003e O-ring recesses, plug-able unused threaded holes, extension ring grooves for sealing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3254\" data-end=\"3455\"\u003e\n\u003cp data-start=\"3256\" data-end=\"3455\"\u003e\u003cstrong data-start=\"3256\" data-end=\"3313\"\u003eSpecial assembly benefit (7x2 filter wheel use case):\u003c\/strong\u003e Designed to avoid housing screws so disassembly\/cleaning can be done without removing the OAG (specific to the mentioned 7x2\" wheel scenario)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"3457\" data-end=\"3477\"\u003eWhat’s in the box?\u003c\/h1\u003e\n\u003cul data-start=\"3478\" data-end=\"3902\"\u003e\n\u003cli data-start=\"3478\" data-end=\"3519\"\u003e\n\u003cp data-start=\"3480\" data-end=\"3519\"\u003eAstroAsis Oasis OAG body (M48 system)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3520\" data-end=\"3562\"\u003e\n\u003cp data-start=\"3522\" data-end=\"3562\"\u003ePrism assembly (8mm x 14mm, AR-coated)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3563\" data-end=\"3638\"\u003e\n\u003cp data-start=\"3565\" data-end=\"3638\"\u003eDouble-helix focusing mount (guide camera focus + prism height control)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3639\" data-end=\"3804\"\u003e\n\u003cp data-start=\"3641\" data-end=\"3745\"\u003e\u003cstrong data-start=\"3641\" data-end=\"3652\"\u003eOne set\u003c\/strong\u003e of telescope-side threaded couplings (choose\/specify thread: \u003cstrong data-start=\"3714\" data-end=\"3721\"\u003eM68\u003c\/strong\u003e, \u003cstrong data-start=\"3723\" data-end=\"3730\"\u003eM54\u003c\/strong\u003e, or \u003cstrong data-start=\"3735\" data-end=\"3742\"\u003eM48\u003c\/strong\u003e)\u003c\/p\u003e\n\u003cul data-start=\"3748\" data-end=\"3804\"\u003e\n\u003cli data-start=\"3748\" data-end=\"3804\"\u003e\n\u003cp data-start=\"3750\" data-end=\"3804\"\u003eIncludes \u003cstrong data-start=\"3759\" data-end=\"3784\"\u003e4.5mm \/ 5.0mm \/ 5.5mm\u003c\/strong\u003e thickness options\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3805\" data-end=\"3902\"\u003e\n\u003cp data-start=\"3807\" data-end=\"3902\"\u003eSet screws \/ hardware provisions for plugging unused mounting holes (for light leak prevention)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"3904\" data-end=\"3923\"\u003eSoftware and Docs\u003c\/h1\u003e\n\u003cul data-start=\"3924\" data-end=\"4121\"\u003e\n\u003cli data-start=\"3924\" data-end=\"3956\"\u003e\n\u003cp data-start=\"3926\" data-end=\"3956\"\u003eNone required (hardware OAG)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3957\" data-end=\"4121\"\u003e\n\u003cp data-start=\"3959\" data-end=\"4121\"\u003e\u003cstrong data-start=\"3959\" data-end=\"3982\"\u003eOptional accessory:\u003c\/strong\u003e Motorized focusing kit (Mikkuri\/MokkElectric-style kit) for \u003cstrong data-start=\"4043\" data-end=\"4078\"\u003emotorized guide camera focusing\u003c\/strong\u003e via belt drive (ideal for remote setups)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4123\" data-end=\"4337\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"4123\" data-end=\"4170\"\u003eOptional spacing note (from provided info):\u003c\/strong\u003e For short backfocus cameras (example given: QHY268), an \u003cstrong data-start=\"4227\" data-end=\"4258\"\u003eoptional 5mm extension ring\u003c\/strong\u003e can be placed between the OAG and filter wheel to meet backfocus requirements.\u003c\/p\u003e","brand":"AstrOasis","offers":[{"title":"M48","offer_id":51613784768832,"sku":"AO-OAGM48","price":299.0,"currency_code":"USD","in_stock":true},{"title":"M54","offer_id":51613784801600,"sku":"AO-OAGM54","price":299.0,"currency_code":"USD","in_stock":true},{"title":"M68","offer_id":51613784834368,"sku":"AO-OAGM68","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/9904\/6464\/files\/1763630602324964.jpg?v=1771543870","url":"https:\/\/astroworldtelescopes.com\/products\/astroasis-oagm48","provider":"Astroworld Telescopes","version":"1.0","type":"link"}