Just tested infinity stop on Byron, now I am sure that Schneider Apo Symmar 150/5.6 can not be used, just missed a little bit, about 2mm less for infinity, what a pity!
Really wanna use 150mm lens, maybe tailor made a special lens board for it, 2 or 3 mm extruded make it work.
So choose lenses from 135mm and downward, 150mm is out!
personal record...
127/4.7- 19S---32.7mm
120/4.5-27B----44.9mm
100/5.6-19.8B----54.7mm
90/6.8-14.0B----62.3mm
90/8-21.6B-----51.6mm
plus 0.5mm each for center of infinity stopper gap
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