EOS R5 Terrible noise problem

[lostinCR]

I've had the R5 for 2.5 years and it has been through a lot of travel with me to areas both dry/dusty and humid/dark.  It has always given me great photos and I have been very happy with it.  I had it professionally cleaned in the USA after trips to Africa and South America.  On my most recent trip to Colombia, I have had terrible problems with noise.  Let me be clear, I am not a professional.  I think I know how to use the camera correctly but am 100% willing to be told I am doing something wrong.

I've included two random photos from a trip to Colombia that show my problem.  The first is a night photo where the moon is totally blown out but the shadows are complete noise.  The second is a random orchid at ISO 800 that is almost completely unusable due to noise. I have hundreds more I can include.

I have changed setting on the camera multiple times to use every combination of options I can think of but the noise levels never change.  Is there something obvious that I am missing or do I just need to send the camera back to Canon for a diagnostic?

[Peter]

I can only see compression artifacts from JPEG. Can you share some raw files instead?

Because you use Lightroom, set sharpness and NR to 0. Better/worse?

[shadowsports]

Greetings,

We'd be happy to evaluate your photos, but you're going to need to post the images with EXIF data to a sharing site and provide a link for us to do so.  

I assume you're using Canon glass? This should be in the EXIF data.  Please include a few photos and we'll take a look. 🙂

[lostinCR]

What sharing site works best?  I've not don this before.

[shadowsports]

Google Drive, OneDrive, Dropbox, Box, etc.  

[lostinCR]

https://drive.google.com/file/d/1hsO0aAeQYTqrGbDvoN-rxk-wdbBf5BUX/view?usp=drive_link

https://drive.google.com/file/d/1KYLMvJPr34z0my8WPoOUsqEXA0BK8iR_/view?usp=drive_link

[lostinCR]

When downloaded, these show the noise levels on most photos.  Noise is visible down to at least ISO 200.

[lostinCR]

I think the links can now be opened.  If not, please let me know.

[Peter]

Left with tone curve. Right without. I see no problem.

The moon picture at ISO 6400 looks completely normal.

Make sure that you don't sharpen non-details in post processing.

[Peter]

In Lightroom you get the characteristic noisy look in the background due to sharpening and colour NR.

The solution is to only sharpen the details. For this I use a mask. I suppose you can do the same i Lightroom.

And for the NR you do the opposite.