I got this lens a couple of days ago. It consists of 18.5cm and 25cm cells with the same serial number on both cells. I mounted it on a 5x7 camera, and it appears to cover fully. The focal length of the combined cells is ~115mm, measured from the lens board to the ground glass. I will mount it on a larger camera in a day or so and find out whether it covers. The cell screws into a regular Copal 1 retaining flange.
I have searched the internet, and can't seem to find any information. Does anyone know?
Thanks in advance,
Kumar
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