A7r did not work for minus 10 degree F enivronment

Started Dec 31, 2013 | Discussions thread
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Thomas KP Lee
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A7r did not work for minus 10 degree F enivronment
Dec 31, 2013

I was doing photo shootings for tree rime (frozen droplets on trees) in the north east of China for 10 days, where the enivronmental temperature has to be some minus 23 - 27 degree C (or minus 10 - 20 degree F) in  the morning to create the rimes on trees near the river sides. Then found my A7r will shown battery low, in just 5 minutes after pull out from bag. When change to a new battery (kept warm) it will again only worked for a few minutes. The Sony Li ion battery cannot stand such low temperature.

Fortunitely I also carried my 1Dx which works fine in such harsh environment. The other camera I carried, Canon 7D also have an issue to communicate with the Sigma 50-500mm OS lens, it shown "ERR 01", which does not have such error report in normal temperature. I don't know the problem is on the Sigma lens or Canon 7D, as 7D worked fine with other Canon lenses, while the Sigma 50-500 OS lens also worked fine with 1Dx in such temperature.

 Thomas KP Lee's gear list:Thomas KP Lee's gear list
Canon EOS-1D Mark IV Canon EOS-1D X Sony SLT-A99 Canon EOS 70D Sony Alpha 7R +3 more
Canon EOS 7D Canon EOS-1D Sony Alpha 7R
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