I know you probably have, but I have to ask: did you clean the contacts well?
Correct me if I'm wrong but aperture is read by passing current through the lens mount and the "A" pin. Oh wait. Digital lens. Hmm, maybe the aperture is controlled with the chip. I only have screw mount lenses, but getting a few DA lenses wet (and I mean soaked) resulted in MF only first and then eventually loss of aperture control. the MF only is telling. Sounds like you have a bad chip or a bad connection. On Mon, Dec 16, 2013 at 6:57 PM, Igor Roshchin <s...@komkon.org> wrote: > > > I have a question for those people who had SDM (or in general, lens > chip) failed and replaced. > > I see that with one of the SDM lenses my K5 has the aperture and speed > settings rapidly (as in crazily) fluctuating. (And the focus shows "MF", > regardless of the focus selector position.) > I was wondering if this is one of the symptoms of the failed chip or > that could be for a different reason. > > When I had a previous chip failure, I didn't see anything like this. > When the chip failed in your lens, did you see this type of a > fluctuation? > I wonder if could be something else that happened to the lens. > > Igor > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
