EOS R5 Mark II issues with colors and corrupted images

[jasonleecs]

Hi,

Any R5M2 owner encountered a "layer" of additional/missing colour platter in your photo taken?

Initially, I encounter image preview issue where the camara states that the "current image cannot be previewed" on the camera but didn't thought much about as it was already night and I'm shooting the cuscus near the homestay. But things took a turn the next day when I'm shooting the bird of paradise. A quick preview on some of the images show symptom the night before and worst, photos with additional/missing colour platter.

As I continue to review the images, I noticed some of the images either have a tinge of colour, e.g. green, yellow, pink etc., either in in full or partial on the images.

Initially, I thought it could be due to the slower SanDisk UHS 2 SD card wasn't able to catch-up with the write speed that causes the problem. So, I removed the SD card and let the camera write to the faster Prograde CFExpress card with the sustainable write speed of 1300MB/s.

However, the issue persisted and even more ridiculous! I took the camera for a sunrise shoot one morning, instantly, the 1st shot encountered the problem describe above on the CFExpress card. Therefore, the theory of incapable card or heating is ruled out. 

Would like to hear from follow R5M2 owner if you've encountered such issues.

The camera config is as followed

Firmware v1.01 // Highlight tone priority D+2 on shooting the bird, and was disabled when shooting sunrise // Elec shutter for BOP @ H+ and Mech shutter for sunrise at single // SanDisk 256GB Extreme PRO SDXC UHS-II Memory Card with R=280MB, W=150MB // ProGrade Digital 1TB CFexpress Type B Memory Card (GOLD) with R=1700MB, R=1300MB

Thanks.

[rbnsncrs]

@jasonleecs, @Peter came back to my home at last.

I was using Faststone. I tried DPP but when I tried to load the files it crashed, so I didn't force that one a lot.

Today I updated my Lightroom so it started to show the CR3 files. Some of them still looks washed out on the preview but gets fixed when I switch to the Develop tab.

Some photos still have problem. I guess those are the "goners" Jason was telling about. Uploaded one of them to Dropbox.

https://www.dropbox.com/scl/fi/68mpb7ow8rg0h3xxyo7m2/_C1A1426.CR3?rlkey=xczijhboyxaoq6azctw0v0s5g&st...

I didn't do an in camera format as far as I remember. Directly put the card in and started using if the camera didn't force me to in the beginning. I'll do that and try some more. I also started to write on both the cards, 256 GB will be enough for my daily use anyway.

Hope they solve the problem as soon as possible. Not a total deal breaker but annoying for a product at this price level.

[Peter · Accepted solution]

Yes, corrupted. One of three embedded JPEG files corrupted too. This one is still okey but only low resolution. Extracted with Exiftool.

The blue pixels in the raw file are in the bad area hitting 16383. It means that they clip the highlights and do that even in the masked pixels. The value there should be 512.

[jasonleecs]

I concur with Peter's finding.

Anyway, there is a new firmware available for the R5M2 now. Maybe you can download it and hopefully it resolved the issue; https://www.usa.canon.com/support/canon-product-advisories/Firmware-Notice-EOS-R5-Mark-II-Firmware-V...

[rbnsncrs · Accepted solution]

I already downloaded and updated. Didn't see anything about this issue in the list though.

Thanks a lot. 

[jasonleecs]

Same here. But I haven't got my lazy butt off the chair to perform any testing. Hopefully, I can do so in the next day or 2.

[p4pictures]

So this is not a camera issue at all, but an issue with FastStone and Windows Explorer. The images are 100% as expected in the DPP version that supports the EOS R5 Mark II.

[jasonleecs]

The key issue here is about image corruption with the R5M2 writing to the V60 SDXC cards. Canon in my region have acknowledge the issue and have elevate the issue to Canon Inc and they are still pending the 

[Peter]

1D X II had a similar problem until the firmware was updated to 1.0.2

"If a SanDisk CFast card is inserted into the camera or a card reader, the bottom part of still images recorded may be corrupted.
This phenomenon is confirmed in images recorded in both the RAW and JPEG formats.
In the RAW file, the image corruption may appear in the bottom right corner of the image.
In the JPEG file, the image corruption may appear in the lower third area of the image.”

[jasonleecs]

Hi,

Canon Inc have revert with the cause of the phenomenon. It was cause by the SanDisk Extreme PRO® SDXC™ UHS-II V60 64, 128, and 256GB card

Please refer to this link if you're using SanDisk card; https://support-en.sandisk.com/app/answers/detailweb/a_id/52430

[jasonleecs]

Hi,

Canon Inc have revert with the cause of the phenomenon. It was cause by the SanDisk Extreme PRO® SDXC™ UHS-II V60 64, 128, and 256GB card

Please refer to this link if you're using SanDisk card; https://support-en.sandisk.com/app/answers/detailweb/a_id/52430