D7000 pictures overexposed at low temperatures

Started Jan 17, 2014 | Discussions thread
Stephan Def Regular Member • Posts: 457
Re: sounds like

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?


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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Sony Alpha DSLR-A200 Nikon D5100 Nikon AF-S DX Nikkor 55-200mm f/4-5.6G VR Nikon AF-S DX Nikkor 18-55mm f/3.5-5.6G VR Sigma 17-50mm F2.8 EX DC OS HSM
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