Oh, I knew to look out for that, (un)fortunately I won't have to with this lens.
What did you replace your 50-135 with (if you did)? On Sat, Aug 22, 2009 at 9:44 AM, Joseph Tainter<jtain...@mindspring.com> wrote: > Yes, the SDM is faulty. If you get another copy of the lens, check carefully > for element misalighment, indicated by edge softness at the right side. Oh, > and some copies have it at the left side. > > There have been many, many requests to Pentax to give us a firmware option > to use either SDM or shaft drive on DA* lenses that have both. Pentax > refuses to do this, and they will not acknowledge that there is a problem. > When SDM fails you may be able to focus manually. When the SDM on my (second > of three) DA* 50-135 failed in Rome last November, I couldn't even turn the > focus ring manually. > > Until Pentax get these problems fixed, I won't buy any more SDM lenses. Hoya > has dramatically increased the price of lenses while refusing to improve > manufacturing quality. > > Joe -- 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.
