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View Full Version : Help with info on this old Protar lens



John Z.
17-Mar-2008, 20:29
I found an old Bausch and Lomb lens on Ebay, and need help determining what the focal length may be. Any of the lens experts know the focal length for a lens listed as:

Zeiss Anastigmat Series II A 14x17
"Bausch and Lomb Optical Co."

Thanks for your help.

Wayne R. Scott
17-Mar-2008, 20:55
I'm going to guess 19 3/16" if it is an f6.3

Wayne

John Z.
17-Mar-2008, 21:06
I think this is an f8 aperture lens, according to some old posts--there is no aperture listed on the lens.

Ole Tjugen
18-Mar-2008, 01:31
The Zeiss anastigmat Serie II A was an f:8, 5 elements in 2 groups, with a stated coverage of 75 degrees. It was made in focal lengths from 110mm to 433mm - although these are Zeiss Jena numbers, not B&L.