There doesn't appear to be a hard line. The "middle" focal lengths have shown up with both Seiko and Copal shutters -- probably a gradual shift over...
I plan to rest the lenses flat on a surface plate, the bottom of one lens is concave, so it will sit flat on its perimeter. Then I will position them...
Like those view camera ads which show the standards and bellows contorted to the extremes, in a manner nobody really uses. But studio technique is a...
Bingo. Barnbaum also placed the shadow values bellybutton high, but then would resort if necessary to drastic compression or minus development. That...
Thanks Ron. Interesting that the secod one is 1915 or later from the Sands Hunter & Co Ltd nameplate. I'm not sure whether Hare was still in business...
That's very odd, indeed. Do you have the scanner set to scan with "film area guide", since you are scanning directly on the platen? I can't think of...