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Camera Support #12246

Support for Canon EOS M50 and CR3 file format

Added by Mario Rettig 5 months ago. Updated 4 months ago.

Status:
Incomplete
Priority:
Medium
Assignee:
-
Category:
-
Target version:
-
Start date:
06/29/2018
Due date:
% Done:

20%

Estimated time:
666.00 h
Affected Version:
2.4.4

Description

Please add support for the Canon EOS M50 and the new Canon RAW file format.
Attached RAW files are also available at raw.pixls.us

CanonEOSM50-EFM55mm-RAW.CR3 - Lens 55mm-200mm, 55mm focal length, RAW setting (32.8 MB) Mario Rettig, 06/29/2018 08:48 PM

CanonEOSM50-EFM55mm-CRAW.CR3 - Lens 55mm-200mm, 55mm focal length, CRAW setting (22.2 MB) Mario Rettig, 06/29/2018 08:55 PM

CanonEOSM50-EFM55mm-RAW.JPG - Lens 55mm-200mm, 55mm focal length, RAW setting, JPEG from camera (14 MB) Mario Rettig, 06/30/2018 07:21 AM

CanonEOSM50-EFM55mm-CRAW.JPG - Lens 55mm-200mm, 55mm focal length, CRAW setting, JPEG from camera (14.6 MB) Mario Rettig, 06/30/2018 07:26 AM

CanonEOSM50-EFM55mm-RAW-4in3.CR3 - Lens 55mm-200mm, 55mm focal length, 4:3, RAW setting (32.8 MB) Mario Rettig, 06/30/2018 07:48 AM

CanonEOSM50-EFM55mm-RAW-4in3.JPG - Lens 55mm-200mm, 55mm focal length, 4:3, RAW setting, JPEG from camera (9.75 MB) Mario Rettig, 06/30/2018 07:57 AM

CanonEOSM50-EFM55mm-RAW-16in9.CR3 - Lens 55mm-200mm, 55mm focal length, 16:9, RAW setting (32.8 MB) Mario Rettig, 06/30/2018 08:16 AM

CanonEOSM50-EFM55mm-RAW-16in9.JPG - Lens 55mm-200mm, 55mm focal length, 16:9, RAW setting, JPEG from camera (9.43 MB) Mario Rettig, 06/30/2018 08:20 AM


Related issues

Duplicated by darktable - Camera Support #12269: Canon M50 Duplicate 07/23/2018

History

#1 Updated by Roman Lebedev 5 months ago

  • Estimated time set to 666.00
  • Status changed from New to Incomplete
  • % Done changed from 0 to 20

Cross-referencing
https://github.com/darktable-org/rawspeed/issues/121
https://github.com/Exiv2/exiv2/issues/236
https://github.com/Beep6581/RawTherapee/issues/4531

Mario Rettig wrote:

Please add support for the Canon EOS M50 and the new Canon RAW file format.

I wouldn't hold my breath, honestly, i will be surprised if that happens this year.
It's completely new raw compression, and i'm not sure there are specs already.
I would convert to dng (!! and keep the originals for when it is finally supported !!).

Attached RAW files are also available at raw.pixls.us

Ah, great, so there are two raw modes.
Can you attach the out-of-camera jpeg thumbnails for these images here, so i can at least validate the samples?

Also can you please check if different aspect ratios also produce different raw files?

#2 Updated by Mario Rettig 5 months ago

Can you attach the out-of-camera jpeg thumbnails for these images here, so i can at least validate the samples?

Done.

Also can you please check if different aspect ratios also produce different raw files?

The file size is different. More files will follow.

#3 Updated by Roman Lebedev 5 months ago

Mario Rettig wrote:

Can you attach the out-of-camera jpeg thumbnails for these images here, so i can at least validate the samples?

Done.

Also can you please check if different aspect ratios also produce different raw files?

The file size is different. More files will follow.

Dang :(

Then can you please pick some single location, and take all the possible shots there,
rename the files appropriately, and upload all of them to RPU?
(yes, all, ignore any previous samples there.)

Based on https://www.canon.ie/cameras/eos-m50/specifications/ there are four crops:
RAW: (3:2) 6000 x 4000, (4:3) 5328 x 4000, (16:9) 6000 x 3368, (1:1) 4000 x 4000

So i want 8 images:
  • 3:2, RAW
  • 3:2, CRAW
  • 4:3, RAW
  • 4:3, CRAW
    and so on.

Please please take all the shots of the exact same static scene, ideally from tripod.

#4 Updated by Mario Rettig 5 months ago

I uploaded the 8 images to RPU, all 8 shots are from the exact same static scene taken from a tripod. I hope they will help better than the last samples.
The samples are named:
  • Canon-EOS M50 -RAW (3:2).CR3
  • Canon-EOS M50 -CRAW (3:2).CR3
    and so on.

#5 Updated by Roman Lebedev 5 months ago

Mario Rettig wrote:

I uploaded the 8 images to RPU, all 8 shots are from the exact same static scene taken from a tripod. I hope they will help better than the last samples.
The samples are named:
  • Canon-EOS M50 -RAW (3:2).CR3
  • Canon-EOS M50 -CRAW (3:2).CR3
    and so on.

Thank you.

Though, it seems they did the sane thing all along, and the raws aren't cropped, since the filesizes are identical.
I'll take them all for now, but maybe will deduplicate later..

#6 Updated by Roman Lebedev 4 months ago

Roman Lebedev wrote:

Mario Rettig wrote:

I have taken a look at those samples, and both of the modes seem to produce CRX-compressed images.
I was hoping the "RAW" mode would be still producing LJPEG's..

#7 Updated by Roman Lebedev 4 months ago

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