On Sun, Aug 19, 2007 at 03:06:24PM -0700, Juan Buhler wrote: > When I mount my A35-70/4 zoom on the K10D I get some strange > aperture-related behavior. The indicated apertures (lens in A, body in > P) go from f8.0 to f45. Same lens on a DS behaves correctly. > > Moreover, if I set the aperture (via the Av wheel) to an indicated > f16, with the camera at ISO100, a sunny grass scene meters at about > 1/100s, as expected. And the resulting photograph doesn't seem > overexposed. When seen from the front, shutter speed set to one > second, the aperture (indicated f16 in the camera) is obviously > bigger, probably f5.6 or f8. > > Anyone with a K10D and the same lens care to test for me? Any ideas > what might be going on? > > Thanks, > > j
That sounds to me as though you have a bad contact pin, so the camera thinks the lens has a maximum aperture of f8. The first thing to try is simply cleaning the contact pins/patches on the back of the lens (and the corresponding pins on the body) to see if that fixes the problem. Another thing to try is using some different "A" lenses on the camera, just in case it's a wiring problem on the body. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
