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SGI at a glance
SGI
Before today's relatively small set of mainstream consumer image formats dominated everyday use, desktop software, workstations, GUI systems, and early graphics tools produced many specialized raster formats with local importance.
ORF at a glance
ORF
ORF belongs to the long Olympus digital-camera story, especially in the Four Thirds and Micro Four Thirds eras where portability and serious editing often coexisted.
Format comparison
| Feature | SGI | ORF |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1990 | 2003 |
| Inventor | Silicon Graphics Inc. | Olympus (now OM System) |
| Status | legacy | 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 SGI
- Your source file is already in SGI.
- Preserve source expectations before exporting to ORF.
- SGI is commonly used in image workflows.
When to use ORF
- Your target workflow expects ORF.
- Improve delivery compatibility with ORF.
- ORF is commonly used in image workflows.
FAQs
Why convert SGI to ORF?
Convert to ORF when preserving Olympus camera originals or maintaining compatibility with an Olympus raw-photo workflow.
It is useful for archive masters and non-destructive photographic editing.
What changes when converting SGI to ORF?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to ORF adds camera raw data.
What should I review after converting SGI to ORF?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.