Can't Disable R6 Mark II Noise Reduction

[killacameron]

I've set High ISO speed NR to OFF in my R6II, but it's still applying noise reduction to both straight-out-of-camera JPEGs and RAWs in DPP. The noise reduction is clearly visible on the JPEGs, and when a RAW is opened in DPP the shot settings display non-zero values for both Reduce luminance noise and Reduce chrominance noise.

What am I missing?

[TomRamsey]

I don't use DPP, but is it possible that it is running a preset on import?  Also do you have long exposure NR turned off?  Is it the same on any lens?  And if you have another camera to check, are you getting the same values?

[killacameron]

1) DPP is set to "Apply camera settings" for noise reduction. Also the JPEGs all have noise reduction straight out of camera and they never touch DPP
2) Long exp. noise reduction is set to OFF
3) Tried it on RF 24-105L and RF 100-400, happens on both
4) Don't have another camera body available to check

[shadowsports]

Greetings,

Are you using Custom Function modes?  

[killacameron]

Happens in Custom Function modes and regular modes.

[p4pictures]

High ISO noise reduction is applied to images with higher ISO settings. For JPG, the processing is done by the DIGIC processor in the camera based on the settings standard, high or off. For RAW images the setting in the camera is saved as part of the metadata in the RAW image. DPP reads that setting from the RAW and applies appropriate levels of luminance and chrominance noise reduction depending on the ISO and the particular camera model. Simply setting high iso noise reduction to OFF in the camera does not result in zero noise reduction being applied in DPP when processing a RAW file. 

In the DPP settings Image Processing1 the default is to apply camera settings, but you can change this to apply your own settings, including zero for both luminance and chrominance.

See the attached screenshots for the settings in DPP with the default and the manually set zero values. 

 

[killacameron]

With DPP set to "Apply camera settings" the expected behavior is for DPP to use the as shot camera settings, not to come up with its own. This is easily demonstrated by opening a RAW in DPP and comparing it to the straight out of camera JPEG of the same shot. They look identical.

That said, I'm not concerned about DPPs behavior because as you pointed out, I can always change the noise reduction values. I'm simply using DPP to confirm that the straight out of camera JPEG's do in fact have noise reduction applied even when High ISO speed NR is set to OFF in the camera. This is easily demonstrated by comparing the JPEG to the RAW in DPP, as above. They are identical. To further illustrate this, setting Reduce luminance noise and Reduce chrominance noise in DPP to 0 results in a significantly noisier image than the SOOC JPEG.

Here is a comparison. You can see that even with High ISO speed NR set to OFF in camera, there is still significant noise reduction applied to the SOOC JPEG. What's interesting is that it's less noise reduction than when High ISO speed NR is set to LOW, which implies that there's a base level of noise reduction in the R6II that cannot be disabled in camera.

[Peter]

Please share the raw files + the JPEG files. Put them in a zip file and use a filehost.

Looks like the exported JPEG from the raw file has some sharpening added, right?

[killacameron]

The only adjustment I made to the RAW in DPP before exporting as JPEG was changing noise reduction to 0. Sharpening should be the same.

Here is a zip of fresh SOOC JPEGs and RAWs for High ISO speed NR set to off, low, standard and high.

[Peter]

SOOC JPEG has no colour noise so NR is applied. It seems like you can't turn that feature off.