I can't find any information on the diameter hole I need drilled to mount this lens on a board. It is an older Seiko shutter marked LS24 for a Fujinon 250 f/6.7; more specifically this lens for reference:
http://www.ebay.com/itm/110907896470...84.m1497.l2649
I would appreciate any help on this so I can use it asap!
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