{"product_id":"zwo-oag-l-guida-fuori-asse-large-per-camere-asi-full-frame","title":"ZWO OAG-L Off-Axis Guider Large for ASI Full Frame Cameras","description":"\u003cp\u003eThe \u003cstrong\u003eZWO OAG-L\u003c\/strong\u003e (Off-Axis Guider Large) is ZWO's large-format off-axis guider designed for long focal length astrophotography with full-frame cameras. Compared to the standard OAG, the \u003cstrong\u003elarger prism (12×12 mm)\u003c\/strong\u003e intercepts a greater portion of the telescope's light cone, providing a wider field of view for the guide camera and a higher chance of finding suitable guide stars even in sparse star fields. No guide scope, no differential flexure: the guide star comes from the same optical path as the main camera.\u003c\/p\u003e\n\n\u003ch3\u003eFull-frame off-axis guiding: zero differential flexure\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003eprism diverts a small portion of the peripheral light\u003c\/strong\u003e to the guide camera, which monitors a star in the same optical field as the main camera. The result is extremely precise guiding, free from the differential flexure typical of separate guide tube setups. The OAG-L is designed specifically for \u003cstrong\u003efull-frame cameras\u003c\/strong\u003e and high-resolution imaging at long focal lengths.\u003c\/p\u003e\n\n\u003ch3\u003eOptical path and compatibility\u003c\/h3\u003e\n\u003cp\u003eTelescope-side connection: \u003cstrong\u003eM48×0.75 (internal thread)\u003c\/strong\u003e; camera-side: \u003cstrong\u003e2\"\u003c\/strong\u003e. Supplied with an \u003cstrong\u003eM48 tilt plate\u003c\/strong\u003e already fitted, allowing precise alignment of the focal plane with the camera sensor. Total optical path with tilt adapter (5 mm) + optional EFW (20 mm) + optional cooled camera (12.5 mm): \u003cstrong\u003e55 mm\u003c\/strong\u003e. For guiding, the OAG-L is compatible only with \u003cstrong\u003eASI Mini cameras\u003c\/strong\u003e (ASI174MM Mini, ASI290MM Mini, ASI120MM Mini).\u003c\/p\u003e\n\n\u003ch3\u003eIntegration with EFW series and cooled ASI cameras\u003c\/h3\u003e\n\u003cp\u003eThe OAG-L is designed to work with \u003cstrong\u003eZWO EFW filter wheels\u003c\/strong\u003e, forming a compact integrated optical train. Without an EFW, the \u003cstrong\u003eZWO D70-M54F adapter\u003c\/strong\u003e is required to achieve the correct 55 mm backfocus. The reference solution for full-frame cooled cameras such as ASI6200MM, ASI2600MM or ASI294MM Pro on long focal length telescopes.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\u003cth\u003eTelescope-side connection\u003c\/th\u003e\u003ctd\u003eM48×0.75 (internal thread)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eCamera-side connection\u003c\/th\u003e\u003ctd\u003e2\"\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePrism size\u003c\/th\u003e\u003ctd\u003e12×12 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOptical length\u003c\/th\u003e\u003ctd\u003e1.5 mm \/ 22.5 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eTotal backfocus (tilt + EFW + camera)\u003c\/th\u003e\u003ctd\u003e55 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eIncluded adapter\u003c\/th\u003e\u003ctd\u003eM48 tilt plate\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eCompatible guide camera\u003c\/th\u003e\u003ctd\u003eASI Mini (ASI120MM, ASI174MM, ASI290MM Mini)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSupported sensor format\u003c\/th\u003e\u003ctd\u003eFull Frame\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eManufacturer\u003c\/th\u003e\u003ctd\u003eZWO (Suzhou ZWO Co., Ltd.)\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"ZWO","offers":[{"title":"Default","offer_id":57592963563851,"sku":"ZWZWO-OAG-L","price":249.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/1981\/1147\/files\/ZWO-Guida-fuori-asse-OAG-L_f5731c9b-57d3-40b5-84be-35a8075598eb.jpg?v=1781619510","url":"https:\/\/adriasky.it\/en\/products\/zwo-oag-l-off-axis-guider-large-asi-full-frame-cameras","provider":"Adriasky","version":"1.0","type":"link"}