Originally posted by SCGushue Lowell,
However, with respect to mechanical problems that seem to be encountered, I think there is very legitimate concern on the aprt of owners. These are the first SDM problems that I have heard of so more than likely not a serious issue most likely but still there is a need to inform the Pentax Community at large.
Stephen
My concern is not that there have been failures, I can't dispute that what is reported here did not happen and is not a true failure.
What I am wondering is, have these failures been brought on by, or in part contributed to, an unnecessary disassembly of the lens because someone thought they had a BF issue?
Not that I am criticizing either the individuals (who may have had a legitimate complaint, I just don't know), or pentax service (for a poor quality repair job, again I don't know if they took the lens apart as part of the service), but to me it seemed very interesting, beyond the point of co-incidence, that 2 people had the same failure of the lens after sending both lens and camera back with the same complaint. This is, of course, something for Pentax's QA department to assess, but it got me thinking, especially after seeing the number of people discussing getting lucky with the third lens, and others who have sent lenses back thinking there is a problem when in fact there isn't.
As for your other comments, if you look at some of my posts and responses, I think you will find I whole heartidly agree. The number of people who had any exposure to film is rapidly falling, and with it, knowledge of the practical limits some of us use as a comparison.