David wrote: > Now we look at Pentax - Great 67, decent 645, and lots of support from a > lot of users out there........BUT.... no interchangeability. Only inserts. > While it probably could be done, it would have to be done with Pentax's > blessing and with their help. Pentax engineers would have to get involved, > perhaps more work than a "standard" interchangeable back ? Then we look at > the fact that any digital insert that would be made could ONLY be used > within the Pentax system and would be totally useless if the 3rd party > tried to adapt it to Bronica/Mamiya/Blad.
The 645 has interchangeable backs. It's just that you can't change film mid-roll without fogging the film, something that hasn't the foggiest impact on a digital back. It can easily be done. However, a more awkward technical solution than a digital back cannot be imagined. If they make one, it's only a preliminary solution. Pentax already has a digital 35mm slr. All they need to do is increase film-mount distance with approximately 1,5 cm's. Increase the size of the prism and mirror. Mount a 645 lens mount and a bigger CCD and the're all set. The same could be done for the 67 system. The 645's design is wholly dictated by the fact that the film run up-down. Without this limitation, and without a large film transport, a 645 digfital slr could be made at the same size as a Nikon F100 and look similar. P�l
