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Forum: Pentax SLR Lens Discussion 05-05-2011, 06:18 PM  
DA* reliability issue ???
Posted By stantheman
Replies: 29
Views: 6,103
I sent my 50-135 lens back a 3rd time for failing to auto-focus and asked the repair company to see if Pentax would replace it, and they did. I received a new lens today. That made me feel a little better about Pentax, and really good about the repair company,
C.R.I.S. Camera Services in Chandler AZ, criscam.com.
Forum: Pentax SLR Lens Discussion 04-07-2011, 07:06 PM  
DA* reliability issue ???
Posted By stantheman
Replies: 29
Views: 6,103
I just had the autofocus on my 50-135 to fail for the THIRD time. It quit the first time barely after the year warranty. $200+ to fix it. Three months later it was out again. Another three months and I'm contacting the repair company again. :(
Forum: Pentax SLR Lens Discussion 10-15-2010, 10:00 AM  
DA* 50-135 SDM failure pattern?
Posted By stantheman
Replies: 7
Views: 3,992
My 50-135 SDM failed after 13 months, just out of warranty. It was not heavily used. I paid the shop $200 to repair it. The focus motor was bad. I was not happy. An $800 lens shouldn't break in a year.
Forum: Pentax Camera and Field Accessories 10-13-2010, 07:59 PM  
AF-540FGZ inconsistent results
Posted By stantheman
Replies: 17
Views: 4,551
Thanks for the advice. Is this a problem that is acknowledged by Pentax, or one that users have discovered?
Forum: Pentax Camera and Field Accessories 10-12-2010, 08:54 PM  
AF-540FGZ inconsistent results
Posted By stantheman
Replies: 17
Views: 4,551
I do weddings on a very part-time basis. Since I got the AF-540FGZ, I have thought that the results were inconsistent. Shooting a wedding last weekend, it seemed worse. I would change the aperture or the exposure compensation trying to get a good exposure, and finally get a good picture. This would happen when the background of successive shots did not change, but the exposure would. It got a little embarrassing as I was constantly have to fool with my camera, taking 4 or 5 shots or more, where I would normally have done 2. I haven't looked yet, but I just hope the exposure on unique action shots was within a range that I can correct it.

I use it mounted off-camera, connected to a K20D. I set the camera exposure on manual.
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