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.

[jasonleecs]

I've reported the issue to my local Canon support, and they have acknowledged the issue since they can reproduce the problem.

Their advice is not to use V60 SDXC for the time being until a remedy is available.

[Peter]

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@Brendan1 wrote:

Hi,   Somewhat like the R52Aoo49.CR3 of Jasonleecs, all my CR3 files are washed out & have a pinkish border on the left side and across the top when looking at the file on my PC   It doesn't happen when viewing on the camera I have tried different branded branded cards - both Sd & CFexpress B   I have used various objects to photo & different camera settings, as well as resetting the camera & uploading update - didn't change my issue   I also rechecked my PC for updates as well as DPP   I have used these cards on other cameras that support these cards - taken photos & absolutely no issues opening on my PC - either DPP or straight from the card   All my other CR3 photos are flawless.   It's only RAW from the R5ii   The SD cards are also flawless with the R5ii for JPegs   Again - it's only the RAW files  I couldn't load raw files onto my Ipad - requires too much power.   The dealer was able to replicate this on their PC   The dealer has sent my camera back to Canon.   Also I've been online to Canon tech support - all been good but no solution at this stage.

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Sounds like the thing I already wrote about. Files from my 6D, 7D, 30D, 1Ds that in the raw file doesn't have any masked pixels or any black level offset, 300D, D30, D60.

My raw files are free to download from https://discuss.pixls.us/uploads/short-url/1h1CdZDLZFenDnimt5jMs5mPw5u.zip

With the right black level and crop + color lock up table:

[jasonleecs]

Hi Peter,

You may be right about the masked pixels based on the depth of your technical knowledge. But if shots show up in DPP with inconsistency or unreadable, users will take it as a issue with the camera/photos instead of something else.

Like my shot "R52A0049.CR3" it does appear washed out on FastStone, but unreadable in DPP 4.18, and underexposed by at least 2.5 stop in DPP 4.19 from the next shot with the same setting. To a normal user, this would be a problem with the camera.

BTW, what is the software you used, I would like to try it out to correct the black level correction.

Thanks. 

[Peter]

For CR3 files, darktable relays on LibRaw. Same as FastStone I suppose. LibRaw is released around once a year.

"Public snapshots are published every 9-18 months in the public GitHub repository."

It means that darktable out of the box doesn't support R5 II if you don't compile it with the R5 II changes. I haven't done it for R5 II. How to do here https://blog.pandainthecloud.de/2024/09/07/adding-new-camera-support-in-darktable-libraw-exiftool/

As a workaround you can just convert the CR3 files to DNG. Both Adobe DNG Converter and DNGLab support R5 II.

Highlight Tone Priority will often be under exposed if your software doesn't read the HTP tag and is able to compensate for it.

I am not at my computer right now, but latest release for DPP, is it 4.19.30 for Windows and 4.19.31 for OS X?