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X3F at a glance
X3F
Sigma raw support is closely tied to the company's Foveon sensor story, giving X3F a reputation and workflow profile that differ from more mainstream Bayer-centric raw ecosystems.
RAF at a glance
RAF
Fujifilm's digital-camera identity tied raw capture not just to sensor data but also to a brand-specific color and workflow story, which gives RAF a recognizably different practical role from some rival raw families.
Format comparison
| Feature | X3F | RAF |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2002 | 2000 |
| Inventor | Sigma (Foveon) | Fujifilm |
| 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 X3F
- Your source file is already in X3F.
- Preserve source expectations before exporting to RAF.
- X3F is commonly used in image workflows.
When to use RAF
- Your target workflow expects RAF.
- Improve delivery compatibility with RAF.
- RAF is commonly used in image workflows.
FAQs
Why convert X3F to RAF?
Convert to RAF when preserving Fujifilm camera originals or handing files back into a Fujifilm-oriented raw workflow.
It is appropriate for archive masters and non-destructive photographic editing.
What changes when converting X3F to RAF?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting X3F to RAF?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.