On Feb 6, 2011, at 15:40 , P. J. Alling wrote: > Mean time to failure, keep saying mean time to failure. If the shutter is > designed to fail on average at 50K actuations the bell curve will have the > failures bunch up at the mean value, but there will be outliers. Sorry you > got one. Actually sorry you got one on the wrong end of the curve. The > shutter's still mostly mechanical though, it might just be dirt a CLA might > fix the problem Maybe not that expensive a fix.
But, you can't open the back door anymore to test the shutter! > On 2/6/2011 5:45 PM, eckinator wrote: >> My K10D's shutter seems to be on the way south... lots of >> underexposures, some images all black and a few instances of "failing >> curtain sync" with the bottom third of the image pitch black... and >> the shutter has less than 20,000 actuations on it... that makes 3 >> lenses out of 4 defective at some point (one to the point of >> replacement) plus a body that has seen some repairs and is now >> readying to die prematurely - what is it with Pentax QC? I'm /this/ >> close to dumping all my stuff into the bay... Joseph McAllister [email protected] “ It is still true, as was first said many years ago, that people are the only sophisticated computing devices that can be made at low cost by unskilled workers!” — Martin G. Wolf, PhD -- 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.
