> - not every perceived failure necessarily is one. SDM motors hold a >charge which depletes after prolonged (months) non-use. Once >discharged, the lens will no longer focus. The charge takes up to two >minutes to rebuild, i.e. the lens needs to be left alone for that time >while connected to a powered on camera. At times, that may still not >be enough to initially overcome mechanical stiction from the long >sitting period. Joseph did the right thing basically,
While I'm glad that there is a known (potential) solution to this problem, it still bugs the hell out of me that it's even an issue. I've never heard of this sort of problem with similar focusing systems from other brands (even when I was back at Reed's and dealt with repair issues). *sigh* Thanks for the info, Ecke. I think what Pentax needs to do now is put some sort of notice flyer in the box with their SDM lenses. It would say that prolonged non-use depletes the lens' stored charge, and to do what the service manager described above if the lens' drive won't respond. They should also send this flyer to all registered SDM lens owners. Some people would be glad to know this info, I'm sure, even though it might create some minor bad PR for Pentax for a short time. John -- http://www.neovenator.com http://www.cafepress.com/jacelio -- 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.
