Hi Igor: I would just like to add that my DA* 50-135 failed after 6 years of service. I purchased it in 2007. Worked beautifully the whole time, then it got tired, I suppose :-). Cheers, Christine
On Dec 18, 2013, at 9:55 AM, Igor Roshchin <[email protected]> wrote: > > Thanks a lot to all who responded (wow, there were many responses, - > and many people who dealt with the failed SDM!). > I didn't have a chance to clean the contacts and re-check the mount yet. > I'll report back when I have updates on the issue. > > Igor > > >> Date: Mon, 16 Dec 2013 18:57:04 -0500 (EST) >> From: Igor Roshchin >> >> >> >> 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 > [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. > -- 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.

