5D Mark II Freezes / Locks Up

Started Jun 30, 2009 | Discussions thread
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OneBigKid
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5D Mark II Freezes / Locks Up
Jun 30, 2009

My 5D MkII will occasionally freeze. The shutter remains open and won't close. The display remains on (so I know it's still getting power) but none of the controls work. I can even turn off the camera and the shutter remains open. The only way to reset is to remove the batteries.

This has happened 3 times over the last 6 months and it's concerning. I'm using a Canon battery grip with Canon batteries. I've called Canon and they suggest removing the grip and trying it again with the body only. Since it only occurs once a month it's hard to reproduce. They said it also might also be dirty contacts on the battery. The contacts look clean to me, and the display remains on when it freezes, so I'm skeptical about their solution. It doesn't seem like a power issue.

Has anyone else had similar problems?

Thanks!

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