Originally Posted by TheFlyingCamera
the 450M will cover up to 12x20, and it comes in a Copal 3 shutter. Actually, the 450 M is a very common lens.
Yeah, about 1 1/2 years ago, when I got mine, there were 5 listed on Ebay that all closed within a day or two of each other. Needless to say, I think I got a GREAT deal on my 450 M.