topic Re: 1DX Mark II - photos only half exposed in EOS DSLR & Mirrorless Cameras

1DX Mark II - photos only half exposed

mmcnel09 — Wed, 06 May 2020 15:06:21 GMT

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!

Re: 1DX Mark II - photos only half exposed

wq9nsc — Wed, 06 May 2020 15:39:17 GMT

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

Rodger

Re: 1DX Mark II - photos only half exposed

mmcnel09 — Wed, 06 May 2020 15:42:22 GMT

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.

Re: 1DX Mark II - photos only half exposed

Peter — Wed, 06 May 2020 16:07:32 GMT

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.

Re: 1DX Mark II - photos only half exposed

mmcnel09 — Wed, 06 May 2020 16:22:43 GMT

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

Re: 1DX Mark II - photos only half exposed

Peter — Wed, 06 May 2020 16:30:05 GMT

@mmcnel09 wrote:
Thank you for the response. He said he did not shoot in RAW.

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