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MP4 in het kort
MP4
MP4 grew out of the MPEG-4 and ISO Base Media File Format lineage, which helped make it both standards-based and commercially pervasive.
PEF in het kort
PEF
Pentax raw workflows never dominated the mass market, but their persistence in enthusiast and specialist photo libraries gives PEF ongoing practical relevance.
Formaatvergelijking
| Kenmerk | MP4 | PEF |
|---|---|---|
| File type | Video | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2001 | 2006 |
| Inventor | ISO/IEC MPEG | Pentax (now Ricoh) |
| Status | active | proprietary |
| Transparency | Niet ondersteund | Niet ondersteund |
| Animation | Niet ondersteund | Niet ondersteund |
| Primary use cases |
|
|
| Layer support | Niet ondersteund | Niet ondersteund |
| Camera raw data | Niet ondersteund | Ondersteund |
| HDR support | Niet ondersteund | Niet ondersteund |
| Streaming ready | Ondersteund | Niet ondersteund |
Wanneer je elk formaat gebruikt
When to use MP4
- Your source file is already in MP4.
- Preserve source expectations before exporting to PEF.
- MP4 is commonly used in video workflows.
When to use PEF
- Your target workflow expects PEF.
- Improve delivery compatibility with PEF.
- PEF is commonly used in image workflows.
Veelgestelde vragen
Why convert MP4 to PEF?
Convert to PEF when preserving Pentax camera originals or maintaining a Pentax-oriented raw workflow.
It is useful for archive masters and editable photographic captures.
What changes when converting MP4 to PEF?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to PEF adds camera raw data. Moving to PEF removes streaming delivery.
What should I review after converting MP4 to PEF?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.