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RAS at a glance
RAS
Convert to RAS when preserving compatibility with historical Sun or Unix image assets.
In most modern contexts it serves as a migration and archive-recovery format.
3FR at a glance
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.
Format comparison
| Feature | RAS | 3FR |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | raw |
| File size characteristics | medium | large |
| Compatibility | broad | limited |
| Editability | moderate | high |
| Created year | 1987 | 2002 |
| Inventor | Sun Microsystems | Hasselblad |
| Status | legacy | proprietary |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | moderate | strong |
| Metadata handling | moderate | rich |
| Delivery profile | strong | limited |
| Workflow fit | delivery | source |
| 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 RAS
- capture ingest
- editing
- web or print delivery
- Important for long-tail compatibility and archival conversion.
When to use 3FR
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage sensor information.
FAQs
Why convert RAS 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 RAS to 3FR?
This conversion changes how the format behaves in downstream tools and delivery environments.
Size profile changes from medium in RAS to large in 3FR. Quality profile changes from depends in RAS to raw in 3FR. Editability profile changes from moderate in RAS to high in 3FR. Compatibility profile changes from broad in RAS to limited in 3FR. Archival profile changes from moderate in RAS to strong in 3FR. Metadata profile changes from moderate in RAS to rich in 3FR. Delivery profile changes from strong in RAS to limited in 3FR. Workflow profile changes from delivery in RAS to source in 3FR.
Moving to 3FR adds camera raw data.
What should I review after converting RAS to 3FR?
Check the exported file for Compatibility often depends on vendor or decoder support.; They are source formats, not publication-ready outputs.; Public technical documentation is uneven across manufacturers..