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I have one but am struggling to get the exact backfocus for my FLT 132 / ASI 2600 MC PRO combination. What is the right back focus distance ? Not 55

by Frank Vanderstraeten, from Oost Vlaanderen, Belgium Asked on March 8, 2022

Name William Optics TMB Designed Field Flattener for FLT-110 / 132 APO Refractor Telescope, CCD Camera Adapter and 35mm Camera Adapter WE-FLAT-68
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