645 lenses can be mounted on K-mount. http://www.bdimitrov.de/kmp/lenses/adapters/645.jpg
But, why would you want to unless you owned 645 lenses and wanted to save money? The K-mount lenses, with their smaller image circle requirement, should be sharper. Now, it's technically possible make a converter to mount 35mm lenses on a 645 and the 24x36 array can be placed inside the opening forward of the film plane. The mirror may or may not have to be locked up depending on the dimensions inside the 645. But why??? Regards, Bob... ---------------------------------------------------------------- They call it PMS because Mad Cow Disease was already taken. From: "Boris Liberman" <[EMAIL PROTECTED]> > Hi! > > >>I'd call it a desperate attempt to perpetuate the 645 format. Install > >>a 10-14MP > >>FF sensor in a good high performance 35mm sized body with a full > >>compatibility > >>K mount and 645 will be dead-in-the-water. My prediction (Mamiya 7 > >>user :-) > > > >I agree completely. (I'm a Pentax 645 user) > > May I ask - does this reasoning include the ability to mount 645 > lenses on K-mount but not vice versa?
