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The Canon EOS 5D Mark II is a 21.1-megapixel full-frame CMOS digital single-lens reflex (DSLR) camera with video recording capabilities.

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How to fix error 20

I have a 5d Mkii that keeps giving me a error 20. What is problem.

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Most Helpful Answer

Err 20

Description: A malfunction with the mechanical mechanism has been detected.

Resolution: Turn the power off, then remove and re-install the battery. Then turn the power on again.

This is direct from Canon.

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hello, it's a late answer,

err 20 corresponds mainly to the mechanism of the defective mirror.

but the shutter may be defective, (although err 30 should be displayed), or the motherboard if the device displays err 20 after wetting the device (but this is unlikely).

it can also be an electronic problem on the lower board when exposed to water.

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I have a 5d Mkiii that keeps giving me a error 20. What is problem.

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