I bought one of these lenses for use on a FED 3 and a Voigtlander Bessa R. One is not supposed to use collapsible lenses on a Bessa but I put two O-rings on the lens barrel to prevent it from collapsing too far into the Bessa body. Works great and TTL metering is fine. Yuri was a pleasure to deal with and this lens is a great performer.

Rating: [5 of 5 Stars!]