On 26/12/2013 8:00 PM, Bruce Walker wrote:
Nothing has ever failed on my 16-50. I've been using it as a workhorse since August 2008. It's shot 10648 frames, first on a K100D, then K20D, and now K-3.
My understanding is that SDM lenses that are used as daily drivers rarely, if ever, have problems with the SDM. It's those of us who don't use them often that have problems.
bill -- 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.

