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ICO at a glance
ICO
ICO grew with the Windows desktop experience, where applications needed icons that scaled across shell views, toolbars, shortcuts, and later higher-DPI environments.
CR2 at a glance
CR2
CR2 became the dominant Canon raw family through the long DSLR era, so huge real-world photo archives still depend on stable CR2 decoding and migration paths.
Format comparison
| Feature | ICO | CR2 |
|---|---|---|
| File type | Not available | Not available |
| Extensions |
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| MIME type |
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| Compression / quality | Not available | Not available |
| File size characteristics | Not available | Not available |
| Compatibility | Not available | Not available |
| Editability | Not available | Not available |
| Created year | Not available | Not available |
| Inventor | Not available | Not available |
| Status | Not available | Not available |
| Transparency | Not available | Not available |
| Animation | Not available | Not available |
| Primary use cases |
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| Common software |
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| Archival suitability | Not available | Not available |
| Metadata handling | Not available | Not available |
| Delivery profile | Not available | Not available |
| Workflow fit | Not available | Not available |
| Layer support | Not available | Not available |
| Vector scaling | Not available | Not available |
| Camera raw data | Not available | Not available |
| HDR support | Not available | Not available |
| Streaming ready | Not available | Not available |
When to use each format
When to use ICO
- capture ingest
- editing
- web or print delivery
- Designed specifically for multi-size icon delivery.
When to use CR2
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage sensor information.
FAQs
Why convert ICO to CR2?
Choose CR2 as target when preserving Canon originals or maintaining a workflow that expects Canon raw files.
What changes when converting ICO to CR2?
Convert to CR2 when preserving Canon originals or maintaining a workflow that expects Canon raw files. It is useful for archive retention, raw editing, and non-destructive photo finishing.
What should I review after converting ICO to CR2?
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 ICO to CR2 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.