Wondering what the lensboard hole size is for the 50-60s era Schneider 240/4.5 Xenar lens in a compound shutter? Assume the most popular common Compur shutter, not some oddball mount. Thanks
Also, not having used a compound shutter in years, the rule is never to cock it when set to "B" and "T" right? Everything else is normal except you only get 1/100th on the high end?
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