Morris, Of course you may de-lurk and bitch!
The SDM motor problem is the main reason I'm still using a DA 16-45 rather than a 17-70 (I would really like the extra reach), and a DA 50-200. I sympathize but don't have any constructive advice to offer, I'm afraid. Cheers, Rick On Jun 19, 2016, at 9:15 PM, Morris Galloway wrote: > Can I de-lurk and Bitch? Fourth SDM focus motor just died. That is three into > the DA* 16-50/2.8 SDM. It is now Awaiting shipment out for repair. And then > yesterday, and again today the DA* 60-250/4 ED IF SDM just failed. I will > simply ship them together -- when they both return the 60-250 I will have > SDM Replacement Motor Number Six. This is horrible abuse of a customer. > These lenses should perform. These are not cheap consumer lenses. And they > are not on cheap cameras. K-3, K-5ii, K-5. So now after this colossal failure > rate I'm supposed to get excited about a K-1 and similar results after buying > a couple of new lenses? > Is the SDM motor just crap? Bought a Tamron 16-50 replacement as a spare > on the 2nd DA* 16-50 repair -- Tamron has worked without complaint, and it > gets used more. I have more confidence in it. And just got a Sigma Bigma > that covers the 60-250 and more. The motor in my DA* 50-135/2.8 SDM is the > only one to last -- and now it will probably crater just > for spite. > > I am not hard on them. Don't bang em around, don't use them on sports more > than six or seven days a year. And never,, zero, zilch, no problems with non > SDM lenses. Got them going back to manual focus Spotmatic times, on the shelf > ready to "adapter and go." I've even got a Contarex bought new in 1962 that > still works. O.K. One of the Zeiss lenses needs a CLA, the 50mm f:\2. The > other Zeiss's are all right. That's a 54 year old camera! And these lenses > can't work eight years? (16-50) Obviously not. Can't even work three without > going into the shop. The 60-250 is two years old. Where is my consumer > representative? My Ombudsman? What is the solution? Pull out and sell-out > as so many of our hotshots have done -- eh Cotty? Help! Anybody! SOS. > > > > -- > 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. http://photo.net/photos/RickW -- 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.

