F6.3 Use of this focal reducer effectively halves the focal ratio of your telescope, resulting in a wider field of view and significantly shortened exposure times for astrophotography. It has only one cover, which surprised me. Reg. ティー.ティーコーポレーション採用サイト The focal reducer for the AX103S Refractor telescope is designed for APS-C format cameras. This Vixen Focal Reducer takes the standard 1800mm (f/9) focal length down to 1278mm (f/6.4). Skip to the beginning of the images gallery. The Antares f6.3 focal reducer screws directly to the visual-back thread of all popular SCTs and converts f10 instruments to f6.3. This Esprit 120 focal reducer and field flattener reduces the focal ratio from the native f/7 to f/5.4. Antares .5x Focal Reducer: Solar Imaging - YouTube This superb fully multi-coated multi-element focal reducer takes advantage of the latest computer aided design techniques to achieve the highest standards of performance set by the brand leaders at a fraction of the cost. Antares' 2" 0.7x focal reducer screws on to any accessory (such as eyepieces, camera adapters, etc.) Here, we review the Celestron C8 XLT Schmidt-Cassegrain. telescope - What are the advantages and disadvantages of a 2-inch …

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