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PGX at a glance
PGX
These formats persist in engineering, compression research, and conversion-tool contexts where simple sample storage or adjunct technical representation is useful.
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.
Format comparison
| Feature | PGX | X3F |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
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| Created year | 2000 | 2002 |
| Inventor | ISO/IEC (JPEG 2000 committee) | Sigma (Foveon) |
| Status | active | proprietary |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
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| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Not supported | Supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use PGX
- Your source file is already in PGX.
- Preserve source expectations before exporting to X3F.
- PGX is commonly used in image workflows.
When to use X3F
- Your target workflow expects X3F.
- Improve delivery compatibility with X3F.
- X3F is commonly used in image workflows.
FAQs
Why convert PGX to X3F?
Convert to X3F when preserving Sigma camera originals or maintaining a workflow built around Foveon raw processing.
It is useful for archival retention and non-destructive editing of Sigma captures.
What changes when converting PGX to X3F?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to X3F adds camera raw data.
What should I review after converting PGX to X3F?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.