Originally posted by beagley I know the digital lenses would not cover the full film frame, but this might look really good for certain wide angle shots. Has anyone tried whether the digital lenses will mount and operate on late model film cameras such as Zx-5n or ist*?
Just like some others have stated, Yes, but it is not recommended because of vignetting, edge lens distortion, and lens barrel appearance (at its default or shortest focal lengths); there are already some great examples of this.
You can go the other way, that is, a full frame 35mm lens on a digital (APS-C) camera. The only difference is that the full frame lens will appear longer than its stated focal length. The multiplication factor is determined by the actual size of the imaging sensor. For Pentax DSLR's, the multiplication factor is x1.53. In other words, a 50mm full frame lens will seem like a 76.5mm (or nearly portrait fl). Obviously, the longer the lens, the more dramatic the difference is (e.g. 500mm becomes 763mm).
It's all good going from full from to APS-C but going from APS-C to full frame is not always good. BTW, going from APS-C to full frame, you will need to divide by 1.53.