On Dec 28, 2010, at 0:05, Barry Rice wrote: > Hey Pentaxians > > I do my macro work using a Tamron 90mm 1:1 F2.8 macro, which is a generic > lens that sits on a Pentax P/KA mount. Unfortunately, the lens is starting > to act erratically and I've figured out that it is because of the adaptall > mount. >
If you haven't tried this already, completely remove, clean, and re-mount the Adaptall mount. It took me about 10 attempts to figure out just how it attaches and interacts with the camera, but last time I had the "no f-stop data sent to the camera" issue with my Tamron 90mm f/2.5 macro lens, removing that mount and reattaching it made everything alright (for now). -Charles -- Charles Robinson - [email protected] Minneapolis, MN http://charles.robinsontwins.org http://www.facebook.com/charles.robinson -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
