{"product_id":"fhd-oag-max","title":"FHD-OAG MAX","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Player One FHD-OAG MAX is an off-axis guider that places a pickoff prism into your imaging train so a guide camera sees the same light as your main sensor, the most reliable way to guide long deep-sky exposures without flexure between separate scopes. Its larger prism makes it easier to land a usable guide star, and the low-profile aluminum body keeps added spacing to a minimum.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis OAG is for deep-sky imagers using Player One's larger cameras who want tight, flexure-free guiding on longer focal-length instruments where a separate guide scope would drift relative to the main optics.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge 8 × 14 mm prism:\u003c\/strong\u003e the near 16:9 prism footprint sweeps more sky for guide stars, so you spend less time hunting for something to lock onto.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow 17.5 mm extension:\u003c\/strong\u003e the guider adds only 17.5 mm of optical length, leaving more of your backfocus budget for filters and spacers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum 6061-T6 body:\u003c\/strong\u003e aircraft-grade aluminum keeps the unit stiff and light so the prism holds its position under load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eOptical \u0026amp; Mechanical Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe pickoff prism stands 8 mm tall and measures 8 × 14 mm in a wide, near-16:9 orientation. That shape matters: a wider prism scans a larger patch of the field just outside your sensor, which raises the odds of finding a bright guide star without rotating the guider. Because the whole assembly adds only 17.5 mm of optical length, it fits into imaging trains where backfocus is tight.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse the FHD-OAG MAX for long-exposure deep-sky astrophotography, especially at longer focal lengths where off-axis guiding outperforms a separate guide scope by eliminating differential flexure.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility \u0026amp; Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera compatibility:\u003c\/strong\u003e Player One lists the MAX as supporting its Poseidon, Zeus, and Artemis series cameras.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilters and spacing:\u003c\/strong\u003e the low 17.5 mm profile helps you stay within backfocus when combining the OAG with a filter drawer or wheel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePlayer One does not publish the guider's thread standard, exact backfocus, or weight; if you need to confirm it fits a specific imaging train, contact us and we will help you check spacing.\u003c\/li\u003e\n\u003cli\u003eYou supply your own guide camera; the OAG provides the prism and pickoff, not the sensor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs it difficult to set up?\u003c\/strong\u003e It is straightforward for anyone comfortable assembling an imaging train: you thread the OAG into your train, position your guide camera at the prism's focus, and match it to your main camera's focus.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy choose an OAG over a guide scope?\u003c\/strong\u003e An off-axis guider shares your main optics, so there is no flexure between a separate guide scope and the imaging scope, a real advantage at long focal lengths.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich cameras does it fit?\u003c\/strong\u003e Player One lists support for its Poseidon, Zeus, and Artemis series.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe FHD-OAG MAX pairs a generous 8 × 14 mm prism with just 17.5 mm of added length, making flexure-free guiding easier to achieve on demanding long-focal-length rigs.\u003c\/p\u003e","brand":"Player One Astronomy","offers":[{"title":"Default Title","offer_id":44013802291311,"sku":"OAG-MAX","price":278.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/FHD-OAG-MAX-LOGO__28485.png?v=1766563252","url":"https:\/\/ontariotelescope.com\/products\/fhd-oag-max","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}