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ARI at a glance
ARI
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.
IIQ at a glance
IIQ
Phase One positioned IIQ around its medium-format and digital-back workflows, which is why IIQ appears in a very different professional context from ordinary consumer camera raws.
Format comparison
| Feature | ARI | IIQ |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | raw | raw |
| File size characteristics | large | large |
| Compatibility | limited | limited |
| Editability | high | high |
| Created year | 2010 | 2007 |
| Inventor | ARRI (Arnold & Richter) | Phase One |
| 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 ARI
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage image data for later interpretation.
When to use IIQ
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage sensor information.
FAQs
Why convert ARI to IIQ?
Choose IIQ as target when preserving Phase One originals or keeping compatibility with medium-format studio workflows built around Capture One and Phase One hardware.
What changes when converting ARI to IIQ?
Convert to IIQ when preserving Phase One originals or keeping compatibility with medium-format studio workflows built around Capture One and Phase One hardware. It is an archival and editing format for premium photographic production.
What should I review after converting ARI to IIQ?
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 ARI to IIQ 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.