I recently purchased a Kodak No. 3 camera with a Carl Zeiss Jena Nr 144511 Tessar F=17,5 DRP 142294 lens. I'm planning to use the camera with 120 film by using a mask to give me 6 x 14 format (I have done this before). Can anyone give me any information on the quality of the lens. The lens is in a compound shutter which appears to be working correctly and the lens is in good condition with no marks.