Hi. Any ideas about this weird K30 behavior?

Started Aug 2, 2013 | Questions thread
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Marriott
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Hi. Any ideas about this weird K30 behavior?
Aug 2, 2013

My K30 is exhibiting some frustrating behavior. In all exposure and metering modes at 0.00ev and a single center focal point, I have been getting wildly different exposures shooting the same scene. Here are some test shots converted in LR 5 at standard defaults using the DA 70 2.4, but all my lenses are doing this:

1/250, f/2.4 ISO200

1/125, f/2.4, ISO100

Also:

1/400, f/2.4, ISO 200

1/160, f/2.4, ISO 100

1/400, f2.4, ISO 100

and, using live-view:

1/10, f/2.4, ISO 100

It's all over the map. I've had my K30 for one year tomorrow. I had a K5 before that which had the "mirror flop" problem. I'm feeling a little snake-bit. This has been a very helpful forum for issues in the past, so I hope some ideas can be of service. Thanks.

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Pentax K-30 Pentax K-5
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