Baader UFC S70 / C11/C9.25 Hyperstar, SC, HD Telescope-Adapter (optical height: 4,1 mm)

Description Baader UFC S70 / C11/C9.25 Hyperstar, SC, HD Adapter Telescope-side: C11/C9.25 Hyperstar, SC and EdgeHD Adapter Camera-side: with S70 dovetail Can be adapted via the S70 dovetail to the UFC filter base #2459110 as well as to UFC extensions Please note the below description on Hyperstar Adaptation Important note on Hyperstar-Adaptation The distances for adapting a camera to the Hyperstar system must be done with a precision of +/-0.3mm or better, otherwise the image quality will suffer. Please take a look at the following image showing the necessary Backfocus. Example: A Celestron C11 Hyperstar has a backfocus requirement of 59.7mm; in addition, the focus shifts 0.66 in the extrafocal direction, if you use filters with a thickness of 2mm (as they are usually used for 2"/M48-housings). As a rule of thumb, a filter moves the focus in the extrafocal direction for 1/3 of the filters thickness. Substract the flange focal distance of the camera from this value (rounded 60.7mm).