{"product_id":"11-rowe-ackermann-schmidt-astrograph-rasa-11-v2-optical-tube-assembly-cge-dovetail","title":"11\" Rowe-Ackermann Schmidt Astrograph (RASA 11) V2 Optical Tube Assembly (CGE Dovetail)","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the 11\" Rowe-Ackermann Schmidt Astrograph (RASA 11) V2 Optical Tube Assembly—designed to make deep-sky imaging faster, cleaner, and more accessible with today’s DSLR and CCD cameras. With a fast f\/2.2 system and a compact 620mm focal length, you get wide, bright fields and high resolution without long exposure times.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eUltra-fast imaging\u003c\/strong\u003e: f\/2.2 speed reduces sub-exposure lengths and lightens the load on your mount, often eliminating the need for autoguiding.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLarge, high-precision image circle\u003c\/strong\u003e: 43.3mm circle supports sensors up to 52mm diagonal, delivering pinpoint stars across wide fields and large chips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExceptional optical quality\u003c\/strong\u003e: 4-element rare-earth glass minimizes coma and field curvature with minimal vignetting for sharp edge-to-edge performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStable focusing and minimal image shift\u003c\/strong\u003e: Ultra-Stable Focus System (USFS) uses a precision linear ball bearing to reduce focus shift and mirror flop; compatible with optional motor focus.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEfficient cooling and protection\u003c\/strong\u003e: integrated 12V MagLev fan accelerates cooldown and provides filtered airflow through the dust-filtered tube.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIntegrated compatibility and ease of use\u003c\/strong\u003e: CGE dovetail bars on top allow straightforward mounting and easy attachment of a guidescope or accessories; includes an optical window with options for imaging filters.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal for wide-field deep-sky imaging, large mosaics, comet hunting, or survey work with DSLR or CCD cameras. The RASA 11 V2 combines fast, wide-field performance with precise focusing and robust thermal management—delivering sharp, high-contrast images with fewer compromises.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44926708940879,"sku":"91076","price":4499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0675\/2406\/7407\/files\/91076_Rowe-Ackermann_Schmidt_Astrograph_v2_01.jpg?v=1776998895","url":"https:\/\/hobbytechsupply.com\/products\/11-rowe-ackermann-schmidt-astrograph-rasa-11-v2-optical-tube-assembly-cge-dovetail","provider":"Hobby Tech Supply","version":"1.0","type":"link"}