RICHARD BUTLER, DPREVIEW:
There may be pent-up demand for a device that's going to let you dust off your beloved Nikon F-something and shoot digital with it, but that doesn't mean a crowdfunded project is going to make it possible. Or, at least, not in a way that's worth the hassle.
Large companies with dedicated engineering departments have worked on the task of making a retrofit module for 35mm cameras, yet no such product has yet been produced. That, along with a list of seemingly intractable technical hurdles, lead me to think that it's not ever going to happen, no matter how desirable it might be.
Read more, here.