I just gave this lens a first cleaning. The lens arrived home a few days ago...
Looks like a B & L petzval. The lens is engraved... EASTMAN PORTRAIT F4 16In.
Seems a copy of the English Dallmeyer 3A, both are 16 inch focal length, F4 maximum aperture and have soft focus ability. The lens was originally designed for whole plate (6.5 x 8.5 inches) size images however I think that coverage is greater than this, I found it to be a nice focal length for portraits on 8x10.
I would appreciate any information about the lens...
Thanks in advance.
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