Hi Mat, You're right. The blades are not 'snapping' together when releasing the switch. I compared to my SMC M 28 f:2.8, which behaves a lot more 'snappy'.
I never sent a lens out for CLA... what would be a reasonable price for this job? Any chance of trying this myself? Groeten, Vic Mat Maessen schreef: > On 6/15/07, Vic Mortelmans <[EMAIL PROTECTED]> wrote: >> The shots on part 2 are all overexposed... >> >> I don't use program mode that often (mostly aperture priority), so could >> it be that this mode is malfunctioning? The diaphragma control by the >> camera is certainly doing something; I did a quick test in shutter >> priority mode and saw the diaphragma change when selecting different >> shutter speeds. > > Most probably, your A50/2 need a CLA. The diaphragm blades are most > likely not closing down quickly enough. You can test this manually, > by looking through the back of the lens, and toggling the aperture > lever manually with your finger. The aperture blades should snap > closed when you release the lever, and you shouldn't feel any > stiffness or resistance in the lever motion (set the lens to f22 or A > for this test). > > -Mat > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
