{"product_id":"airy-disk-flattener-reducer-0-8x-for-the-204mm-apo","title":"Airy Disk Flattener \/ Reducer 0.8x for the 204mm APO","description":"\u003cp\u003eThis 0.8x field flattener\/reducer is built for the Airy Disk 204mm APO and provides a full-frame 44mm imaging diameter with a 3-element optical design.\u003c\/p\u003e\u003cp\u003eIt connects to the focuser by M63x1, provides 55mm back focus adjustable to 88mm, and supports camera-side M48x0.75 or M54x0.75 threads. The rear section is removable and includes an M48 filter-thread path, with larger-camera adapter options planned.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnification:\u003c\/strong\u003e 0.8x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnecting thread:\u003c\/strong\u003e M63x1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera thread:\u003c\/strong\u003e M48x0.75 \/ M54x0.75\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImage circle:\u003c\/strong\u003e 44.4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum back focus:\u003c\/strong\u003e 55mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum back focus:\u003c\/strong\u003e 88.15mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1kg\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDesigned for serious astrophotography workflows, the Airy Disk Flattener \/ Reducer 0.8x for the 204mm APO helps refine field correction, back focus, and imaging performance for compatible Airy Disk refractors. It is a practical upgrade for imagers who want sharper stars, cleaner edge performance, and a more complete telescope imaging system.\u003c\/p\u003e","brand":"Airy Disk","offers":[{"title":"Default Title","offer_id":48248623038705,"sku":"0.8x Flat-Reducer","price":650.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0791\/8311\/8577\/files\/674ec73c4ed542803c33b92c_1_11.jpg?v=1780592743","url":"https:\/\/novatelescopes.com\/products\/airy-disk-flattener-reducer-0-8x-for-the-204mm-apo","provider":"NovaTelescopes","version":"1.0","type":"link"}