D7000 pictures overexposed at low temperatures

Started 10 months ago | Discussions thread
Stephan Def
Regular MemberPosts: 293Gear list
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Re: sounds like
In reply to Mako2011, 10 months ago

Mako2011 wrote:

Rob Stuart wrote:

Im in north of Finland where the outdoor temperatures are -28 Celsius.
After a few hours the pictures taken in RAW are all overexposed.
When the temperatures increase it works fine again.

What is causing this overexposure?

Robert

Sounds like the cold weather is causing the aperture blades in the lens to stick open. Shouldn't cause permanent damage. You might try putting the lenses in a sealed container with a desiccant for a few weeks. That would remove all moisture and maybe keep the blades from sticking as much.

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My opinions are my own and not those of DPR or its administration. They carry no 'special' value (except to me and Lacie of course)

you beat me to it, I was writing the same above while you posted your analysis. I think we got it.

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