{"product_id":"askar-focal-plane-adjuster","title":"Askar Focal Plane Adjuster","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Askar Focal Plane Adjuster is an astrophotography accessory used to fine-tune the camera-side focal plane position in an imaging setup. It is intended for users who need precise spacing adjustment to optimize field correction and image quality.\u003c\/p\u003e\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\u003cp\u003eThis accessory is best for deep-sky astrophotographers who are tuning an imaging train and need a mechanical adjustment option for achieving the correct focal plane or backfocus spacing.\u003c\/p\u003e\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps fine-tune focal-plane spacing in an imaging train.\u003c\/li\u003e\n\u003cli\u003eUseful when optimizing corner star shapes and field flatness.\u003c\/li\u003e\n\u003cli\u003eDesigned as a practical accessory for telescope imaging setups.\u003c\/li\u003e\n\u003cli\u003eSupports more precise spacing control than fixed spacer rings alone.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCamera spacing adjustment for astrophotography.\u003c\/li\u003e\n\u003cli\u003eBackfocus tuning with reducers, flatteners, and correctors.\u003c\/li\u003e\n\u003cli\u003eOptical train setup for cooled cameras, filter drawers, and OAGs.\u003c\/li\u003e\n\u003cli\u003eDeep-sky imaging systems where precise spacing matters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\u003cp\u003eConfirm thread size, spacing range, mechanical clearance, and compatibility with the user's telescope, reducer\/flattener, camera, filter drawer, and off-axis guider before use. This listing is a draft with placeholder pricing for manual review.\u003c\/p\u003e\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eThis is a mechanical spacing accessory, not an optical telescope or camera.\u003c\/li\u003e\n\u003cli\u003eCorrect use depends on the required backfocus for the full imaging train.\u003c\/li\u003e\n\u003cli\u003ePricing is set to $0.00 as a manual placeholder.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\u003cp\u003eOntario Telescope recommends this accessory for imagers who need finer control over camera spacing than fixed extension rings provide.\u003c\/p\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":53155943678063,"sku":"ASK-FOCAL-PLANE-ADJ","price":260.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/focalplaneadjuster1.webp?v=1779736249","url":"https:\/\/ontariotelescope.com\/products\/askar-focal-plane-adjuster","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}