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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.
IIQ at a glance
IIQ
Phase One positioned IIQ around its medium-format and digital-back workflows, which is why IIQ appears in a very different professional context from ordinary consumer camera raws.
Format comparison
| Feature | PFM Raw | IIQ |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1998 | 2007 |
| 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 IIQ.
- PFM Raw is commonly used in image workflows.
When to use IIQ
- Your target workflow expects IIQ.
- Improve delivery compatibility with IIQ.
- IIQ is commonly used in image workflows.
FAQs
Why convert PFM Raw to IIQ?
Convert to IIQ when preserving Phase One originals or keeping compatibility with medium-format studio workflows built around Capture One and Phase One hardware.
It is an archival and editing format for premium photographic production.
What changes when converting PFM Raw to IIQ?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to IIQ adds camera raw data. Moving to IIQ removes HDR content.
What should I review after converting PFM Raw to IIQ?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.