1DX Mark II - photos only half exposed

[mmcnel09]

I have been mentoring a friend with his 1DX Mark II and lately he has been sending me photos that are only 1/2 exposed.

The top half is exposed normally, but the bottom half or so is either dark gray, light gray, or black - or appears to be very under-exposed.

I've been told that it is likely a bad memory card, so he purchased a new CF card and is still having the same issue. (see image below).

He says it is not every image, but frequent enough to cause concern.

Would appreciate any feedback.

Thanks!

[wq9nsc]

That looks like it is probably a failing shutter assembly.  Time for a repair ticket with Canon.

Rodger

[mmcnel09]

Thanks!

In the past on my Mark IIn's when the shutter failed I got horizontal or diagonal streaks of white.

I'll pass your info on to him. Probably ime for a Canon CPS diagnostic.

[Peter]

You can always ask your friend for a raw file. If the optical black area to the left also is affected it is not the shutter. To me, but I just watched the picture on my phone, the lines seem 100% straight horizontal. If that is true it is not the shutter.

[mmcnel09]

Thank you for the response. He said he did not shoot in RAW.

[Peter]

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@mmcnel09 wrote:

Thank you for the response. He said he did not shoot in RAW.

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The optical black fields are not included in jpeg. But anyway, that camera will need a repair.