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CR3 at a glance
CR3
CR3 marks Canon's move into a newer raw-file generation as mirrorless and later-camera workflows evolved beyond the long CR2 era.
MOS at a glance
MOS
Digital photography fragmented into many manufacturer-specific raw formats because camera makers optimized for their own sensors, metadata, and software ecosystems rather than for one shared public raw standard.
Format comparison
| Feature | CR3 | MOS |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2018 | 2003 |
| Inventor | Canon | Leaf (now Phase One) |
| Status | proprietary | proprietary |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Supported | Supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use CR3
- Your source file is already in CR3.
- Preserve source expectations before exporting to MOS.
- CR3 is commonly used in image workflows.
When to use MOS
- Your target workflow expects MOS.
- Improve delivery compatibility with MOS.
- MOS is commonly used in image workflows.
FAQs
Why convert CR3 to MOS?
Convert to MOS when maintaining compatibility with Leaf-originated capture files or preserving source material from medium-format studio workflows.
It is primarily an archival and editing format.
What changes when converting CR3 to MOS?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting CR3 to MOS?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.