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PFM Raw at a glance
PFM Raw
PFM persists from the era when HDR imaging, rendering research, and tone-mapping workflows needed straightforward file carriers for floating-point image data long before mainstream consumer HDR delivery formats matured.
CAP at a glance
CAP
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 | PFM Raw | CAP |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1998 | 2005 |
| Inventor | PBRT / Paul Debevec community | Phase One |
| Status | active | 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 | Not supported | Supported |
| HDR support | Supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use PFM Raw
- Your source file is already in PFM Raw.
- Preserve source expectations before exporting to CAP.
- PFM Raw is commonly used in image workflows.
When to use CAP
- Your target workflow expects CAP.
- Improve delivery compatibility with CAP.
- CAP is commonly used in image workflows.
FAQs
Why convert PFM Raw to CAP?
Convert to CAP when keeping compatibility with a legacy capture workflow or preserving source material from a proprietary imaging system.
It is mainly useful in archive recovery and controlled migration scenarios.
What changes when converting PFM Raw to CAP?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to CAP adds camera raw data. Moving to CAP removes HDR content.
What should I review after converting PFM Raw to CAP?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.