topic Re: RAW format - EOS R50. in EOS DSLR & Mirrorless Cameras

EOS R50 RAW images noisy and not sharp

g_khajanchi — Tue, 30 Jul 2024 13:25:22 GMT

Hi, I am shooting photos in only RAW format with Canon EOS R50, but there is noise in the photo and not sharpness.

Any other function settings are needed only for the RAW format, so that the photos do not contain noise and maintain sharpness.

Re: RAW format - EOS R50.

Tronhard — Sun, 28 Jul 2024 08:18:27 GMT

Hi and welcome:
Well, given the whole point of RAW format is that it records without manipulation exactly what the camera shot, processing a RAW image is really best done in post processing - that really is the point of RAW anyway.

There are products like DeVinci AI, Sharpen and DeNoise to name just one brand. Adobe Photoshop and Lightroom now incorporate AI in their programs too.

Re: RAW format - EOS R50.

Finelld — Sun, 28 Jul 2024 08:27:33 GMT

There shouldn't be a difference required as far as settings go between .jpg and RAW modes. If you believe the issue is isolated to the RAW file format I would recommend do some tests by setting your camera to save both the RAW and .jpg images and do a comparison between the two. The sharpness should be identical. The camera does implement some processing to the .jpg file like white balance and other filters but they normally shouldn't effect the sharpness or noise. If you determine that your RAW files are noisier or less sharp I would initially look at the software that you are using to view/edit the RAW files rather than camera settings.

Good luck and keep us posted.

Re: RAW format - EOS R50.

johnrmoyer — Sun, 28 Jul 2024 10:53:35 GMT

I hope some of this might be helpful.

I set my camera to save CR3 plus JPG. I usually process the CR3 files in Canon DPP software. What software do you use to see the noise and lack of sharpness in the raw file?

Some camera settings can in some circumstances increase noise in the raw file, mostly because those settings will result in the metering being changed. If one intends to process raw files later, I suggest avoiding those camera settings, and applying those corrections later in the Canon DPP software later if you want them.

For example from the EOS R50 manual, https://cam.start.canon/en/C011/manual/html/UG-05_Shooting-1_0120.html ,

Noise may increase and apparent resolution may change, under some shooting conditions.

Other settings to consider avoiding in the camera include peripheral illumination correction and distortion correction.

For sharpness, in Canon DPP there is unsharp mask. Every digital image needs some amount of unsharp mask at some point in its creation. The camera will apply an unsharp mask when creating a JPG or HIF file, but not when creating a CR3 file. https://www.cambridgeincolour.com/tutorials/sharpness.htm

Canon DPP software which is free to download also has "digital lens optimizer" which is available when one is using a Canon lens. This can also be set in the camera menu tabs. https://cam.start.canon/en/C011/manual/html/UG-05_Shooting-1_0240.html#Shooting-1_0240_4 This will make the image appear sharper if there is small aperture diffraction blur.

The "clarity" setting in the camera will increase the apparent sharpness of the JPG files that the camera creates. For the CR3 file, you may set this in the Canon DPP software. https://cam.start.canon/en/C011/manual/html/UG-05_Shooting-1_0220.html

There are noise reduction settings in the camera menus that change the amount of noise reduction the camera does when creating JPG files. The Canon DPP software can do noise reduction when processing the CR3 files.

If using other software and not Canon DPP, some of these sharpness and noise reduction corrections will have other names.

I suggest looking at https://www.cambridgeincolour.com/tutorials.htm

Re: RAW format - EOS R50.

Waddizzle — Sun, 28 Jul 2024 11:24:49 GMT

Personally, I need to see an example of your issue to better understand it. Could you share a sample of RAW file on public sharing service like Dropbox, OneDrive, GoogleDrive, etc.?

Re: RAW format - EOS R50.

g_khajanchi — Sun, 28 Jul 2024 11:36:43 GMT

Yes, please share your ID

Re: RAW format - EOS R50.

jrhoffman75 — Sun, 28 Jul 2024 13:13:37 GMT

Please post some RAW samples to One Drive or Dropbox and post the link here.

Re: RAW format - EOS R50.

Waddizzle — Sun, 28 Jul 2024 14:19:39 GMT

@g_khajanchi wrote:

Yes, please share your ID

Please create your own account somewhere. Thanks, ahead of time. Post the link to the file(s) or folder(s) here.

Re: RAW format - EOS R50.

Peter — Sun, 28 Jul 2024 14:24:46 GMT

Like the others wrote, a raw sample please. And also an exported file from your software so that we can see the issue you described.

Filehosts to use: Google Drive, Dropbox, WeTransfer, Sprend (only 5 downloads)

Re: RAW format - EOS R50.

g_khajanchi — Sun, 28 Jul 2024 15:34:29 GMT

Hi, as request I'm share google drive link

https://drive.google.com/drive/folders/1-0I7HjF0UKo21t_P_u41fxuUNS29_RyA

Re: RAW format - EOS R50.

Peter — Sun, 28 Jul 2024 16:19:52 GMT

Many of the raw files are under exposed.

Re: RAW format - EOS R50.

g_khajanchi — Sun, 28 Jul 2024 16:40:38 GMT

Yes, in this folder RAW, CRAW, JEPG, etc file different exposure.Yes, in this folder RAW, CRAW, JPEG, RAW+JPEG, CRAW+JPEG etc file with different exposure.

Re: RAW format - EOS R50.

g_khajanchi — Sun, 28 Jul 2024 16:41:00 GMT

In this folder RAW, CRAW, JPEG, RAW+JPEG, CRAW+JPEG etc file with different exposure.

Re: RAW format - EOS R50.

johnrmoyer — Sun, 28 Jul 2024 17:52:31 GMT

I hope some of this might help.

For _MG_0965.CR3, camera temperature is "CameraTemperature : 42 C" and higher sensor temperature will mean more noise. If the temperature in the room is cooler or if the camera had not been in use for very long the sensor would be cooler and there would be less noise. The _MG_0965.JPG file does not appear to me that it came out of the camera, but maybe was produced by converting an HIF file to JPG? The image would not have been so dark if the camera were set to sRGB and then one can use Canon DPP software to save a version as HDR PQ or as AdobeRGB color space when editing the CR3 file. What software do you use to edit the CR3 file?

ISO is 6400. With a small sensor, there is likely to be noise.

in Canon DPP software, noise reduction defaults to 11.0 chrominance and 11.0 luminance which is a lot of noise reduction and will likely make the JPG look better than the CR3 without noise reduction. The noise reduction will soften the image.

Peripheral illumination correction was enabled, and I suggest disabling it in camera and using Canon DPP or other software to do it when editing the CR3 file.

Digital lens optimizer defaults to 15.2 in DPP which suggests that it was enabled in the camera. More digital lens optimizer is possible with a lower ISO number. Setting "HighlightTonePriority : On" in the camera might result in more noise.

In the camera, you had set "HighISONoiseReduction : Standard" and "DigitalLensOptimizer : Standard" which will make the JPG look better than the CR3 file for some software used to view the CR3 file.

Auto lighting optimizer was off which is good.

Re: RAW format - EOS R50.

g_khajanchi — Sun, 28 Jul 2024 18:16:27 GMT

In the link you can see the photo of God and a boy which is a raw file.

Re: RAW format - EOS R50.

Peter — Sun, 28 Jul 2024 21:20:15 GMT

I would say that 0965.CR3 is under exposed by at least 2 EV.

The file 0501.CR3 about 3 EV. The shutter speed was 1/4000 second. 1/1000 second or even 1/500 second would still work.

0001, 0002 and 0003 seem normal. A lot of light and low ISO.

Use a tripod for non moving targets. For people you may need a faster lens.

Re: RAW format - EOS R50.

jrhoffman75 — Sun, 28 Jul 2024 22:46:47 GMT

Looks like you selected Manual exposure setting. Did you adjust one of the variables (Tv, Av or ISO) to center the exposure meter? As Peter said, the ones I sampled were all underexposed. If you boost the exposure on an underexposed image you will get noise.

Use Program mode and see what your results are.

Re: RAW format - EOS R50.

Tronhard — Mon, 29 Jul 2024 17:33:15 GMT

I totally agree. This is a result of under-exposure and not an inherent flaw in the hardware of firmware.
The RAW file gave the OP what they shot.

Re: RAW format - EOS R50.

g_khajanchi — Mon, 29 Jul 2024 14:14:02 GMT

Camera temperature belongs to white Balance/Kelvin or other means

Re: RAW format - EOS R50.

johnrmoyer — Mon, 29 Jul 2024 14:21:44 GMT

@g_khajanchi wrote:

Camera temperature belongs to white Balance/Kelvin or other means

The camera has a temperature sensor and reports the temperature in the metadata. If the environment is cooler, or if the electronics in the camera are using less power, the camera will be cooler and there will be less noise.

Color temperature in Kelvin may be set when editing the the CR3 file by changing the white balance.