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ARW at a glance
ARW
As Sony expanded from consumer electronics into serious camera bodies and sensors, ARW became part of the broader shift that put Sony raw support on the critical path for many photo applications.
RAW at a glance
RAW
Digital photography fragmented into many manufacturer-specific raw formats because camera makers optimized for their own sensors, metadata, and software ecosystems rather than for one shared public raw standard.
Format comparison
| Feature | ARW | RAW |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | raw | raw |
| File size characteristics | large | large |
| Compatibility | limited | limited |
| Editability | high | high |
| Created year | 2006 | 1990 |
| Inventor | Sony | Various camera manufacturers |
| Status | proprietary | proprietary |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | strong | strong |
| Metadata handling | rich | rich |
| Delivery profile | limited | limited |
| Workflow fit | source | source |
| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Supported | Supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use ARW
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage sensor information.
When to use RAW
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage image data for later interpretation.
FAQs
Why convert ARW to RAW?
Choose RAW as target when a capture-oriented workflow needs source sensor data preserved rather than a baked image.
What changes when converting ARW to RAW?
Convert to RAW when a capture-oriented workflow needs source sensor data preserved rather than a baked image. It is useful as a generic archival or interchange target only where the receiving toolchain explicitly understands the raw variant involved.
What should I review after converting ARW to RAW?
After conversion, review these destination checks: Open converted output in LibRaw and verify behavior on real samples; Compare output against the expected raw quality profile; Many are vendor-specific and poorly documented publicly.
How can I keep quality stable in ARW to RAW conversion?
Run representative samples, keep settings deterministic, and monitor these risks: Compatibility often depends on decoder support in tools such as LibRaw, Adobe Camera Raw, or vendor software; Many are vendor-specific and poorly documented publicly; Validate destination compatibility before large-batch conversion.