Originally Posted by
Bernice Loui
Direct "screw in" from barrel to shutter will not happen. Not just threading, the lens cell spacing on these vintage lenses are often specific to the lens cell set. Having micrometer measured a number of Kodak Ektars and other, the cell spacing was never identical between same focal length lenses. The most apparent reason or this has to do with how these lenses were made back in the day. Each lens cell set was specifically calibrated and set to the lens barrel or shutter adapters during lens production and testing.
Seems the choice would be to get the Anastigmat mounted into a# 5 shutter or get something like a Sinar shutter, packard shutter, dropping guillotine shutter, Galli double sheet shutter or similar shutter on to the camera used. If the exposure is long enough, lens cap works too.
Bernice
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