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EMF at a glance
EMF
Microsoft deprecated WMF in favour of EMF due to WMF's issues with device independence. EMF was later extended with EMF+ to support GDI+ drawing operations.
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.
Format comparison
| Feature | EMF | ARW |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | scalable | raw |
| File size characteristics | small | large |
| Compatibility | moderate | limited |
| Editability | high | high |
| Created year | 1993 | 2006 |
| Inventor | Microsoft Corporation | Sony |
| Status | active | proprietary |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | good | strong |
| Metadata handling | moderate | rich |
| Delivery profile | strong | limited |
| Workflow fit | design | source |
| Layer support | Not supported | Not supported |
| Vector scaling | Supported | Not supported |
When to use each format
When to use EMF
- illustration
- diagramming
- brand asset delivery
- Device-independent vector graphics on Windows.
When to use ARW
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage sensor information.
FAQs
Why convert EMF to ARW?
Choose ARW as target when preserving Sony camera originals or returning processed material to a Sony raw workflow.
What changes when converting EMF to ARW?
Convert to ARW when preserving Sony camera originals or returning processed material to a Sony raw workflow. It is useful for archival retention, high-latitude editing, and non-destructive photographic post-processing.
What should I review after converting EMF to ARW?
After conversion, review these destination checks: Open converted output in vendor photo software and verify behavior on real samples; Compare output against the expected raw quality profile; Compatibility often depends on vendor or decoder support.
How can I keep quality stable in EMF to ARW conversion?
Run representative samples, keep settings deterministic, and monitor these risks: They are source formats, not publication-ready outputs; Compatibility often depends on vendor or decoder support; Validate destination compatibility before large-batch conversion.