Originally posted by ennacac No lenses without aperture rings will work on film cameras properly since the electronics to control the aperture is not available on any Pentax film camera other than the last one they made.
Tom
Tom
I have a PZ-1 which is essentually a film version of the *istD and K10D. the 18-35 mm lens that came with the *istD origonally (no apature ring, no apature coupling lever) works just fine on the PZ-1, In fact it is also a full frame lens (probably the only one ever offered on the pentax DSLRs) and gave great shots on the PZ-1 at 18mm.
Many of the modern pentax cameras that followed the PZ-1 will use the digital zoom lenses just fine except at widest focal lengths. My sigma 10-20 is ok from about 14mm up
Edit note:
With the exception of the sigma 10-20 above, which is really only for ASP-C sensors only, every other lens I own is full frame, 100% of my lenses work fully on my PZ-1 which is still my film back up but also note that with the exception of auto-focus, every lens I own EXCEPT for the pentax 18-35 also work fully on my KX and Ricoh XR2s.
NIt's not that I am waiting for full frame, since I do a lot of wild life photography, and the ASP-C sensor with its crop factor work in my favor, and the sigma 10-20 is a great ultra wide, it has just worked out that way.
Last edited by Lowell Goudge; 01-04-2008 at 04:04 PM.