pimeson Posted December 24, 2013 Report Share Posted December 24, 2013 The documentation shows a back focus of 72.8 mm but does not show where the original focus point is. Does someone have this information? Bill Olson Link to comment Share on other sites More sharing options...
tommy_h Posted December 24, 2013 Report Share Posted December 24, 2013 Hi Bill The distance between original focus and corrector is 56 mm outwards. The distance between corrector and camera sensor (backfocus) is 72.8 mm. The attached image shows the Baader MPCC with a DSLR on the left side and the ASA 2" Quattro corrector on the right side Best Regards Thomas Link to comment Share on other sites More sharing options...
pimeson Posted December 24, 2013 Author Report Share Posted December 24, 2013 Thomas, In the image where is the top of the ASA 2" Quattro? Is it just above the top set of screws or is it threaded into the bottom of the extension? Bill Olson Link to comment Share on other sites More sharing options...
tommy_h Posted December 24, 2013 Report Share Posted December 24, 2013 Hi Bill I have labelled the image! Thomas Link to comment Share on other sites More sharing options...
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