Petri E.BN format_16mm it's not in the optical

it's not in the optical path and it never will be

These tubes are obviously cheap

III and IIIa cameras

Leitz NY skylight filter for the 5cm Elmar lens and others with a 39mm filter thread

with extremely minor pen marks

Petri E.BN format_16mm it's not in the opticalThe Petri E. BN is a handsome 35mm rangefinder camera with a 4. 5cm f2. 8 Orikor lens and a pretty nice viewfinder: it's got projected framelines and an integrated rangefinder. That big round thing on the front is a Selenium light meter, and it does not work: it responds to light, but does not indicate correct exposure. That being said, the lens is clean, and shutter speeds are good from 1 15s on up. An unusual camera in shootable condition. Includes