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PNM Raw at a glance
PNM Raw
PNM survived because engineers kept needing a no-drama raster family for scripts, fixtures, codecs, and image-processing experiments where the format should not be the hard part.
3FR at a glance
3FR
Hasselblad raw workflows are closely tied to medium-format capture and to the brand's studio and commercial-photography lineage, which gives 3FR a different practical role from mass-market DSLR raw families.
Format comparison
| Feature | PNM Raw | 3FR |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1988 | 2002 |
| Inventor | Jef Poskanzer | Hasselblad |
| 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 | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use PNM Raw
- Your source file is already in PNM Raw.
- Preserve source expectations before exporting to 3FR.
- PNM Raw is commonly used in image workflows.
When to use 3FR
- Your target workflow expects 3FR.
- Improve delivery compatibility with 3FR.
- 3FR is commonly used in image workflows.
FAQs
Why convert PNM Raw to 3FR?
Convert to 3FR when preserving original Hasselblad captures or handing files into a Hasselblad-oriented raw workflow.
It is useful for archive retention, color-critical processing, and studio pipelines that need untouched sensor data.
What changes when converting PNM Raw to 3FR?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to 3FR adds camera raw data.
What should I review after converting PNM Raw to 3FR?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.