TheVintageLensGuy
KODAK ANASTIGMAT 5 ½ INCH f4.5
KODAK NO 31 ANASTIGMAT 5 1/2 INCH
The Kodak 5 ½ inch lens 31 was usually mated to a camera that sported film size 3 ¼ x 4 ¼. This 1945 lens has a focal length in millimeters of 5.5 X 25.4 = 140mm.
TheVintageLensGuy
KODAK NO 31 ANASTIGMAT 5 1/2 INCH
The Kodak 5 ½ inch lens 31 was usually mated to a camera that sported film size 3 ¼ x 4 ¼. This 1945 lens has a focal length in millimeters of 5.5 X 25.4 = 140mm.