CR3 is fully supported.
| Make | State | Remarks |
|---|---|---|
| BMFF | ✅ Yes | |
| EXIF | ✅ Yes | |
| GPS | ✅ Yes | |
| Makernotes | ✅ Yes only required fields | |
| RAW decoding | ✅ Yes | |
| CRAW decoding | ✅ Yes | Unknown compression method |
| Dual Pixel | ✅ Yes with restrictions | Dual Pixel files can be decoded, but no Dual Pixel corrections are possible |
| Thumb/Preview extraction | ✅ Yes | Thumbnail is generated from preview |
| HDR PQ / HEIF | ✅ Yes | For HDR-PQ, DNG thumbnail and preview image is generated from RAW |
| CR3 Filmroll | ✅ Yes | Filmrolls using encoding type 3 |
Some models can write roll files, including up to 70 images in a single CR3 file. dnglab is able to extract all images from a roll. A single specific image can be extracted with:
dnglab convert --image-index <id> CSI_2839.CR3 /tmp/img1.dng
All images can be extracted by:
dnglab convert --image-index all CSI_2839.CR3 /tmp/roll.dng
This created roll_0000.dng, roll_0001.dng and so on. If a CR3 file contains only a single image, no number suffix is applied so you can always use --image-index all.