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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.
VST at a glance
VST
The Truevision line grew out of EPICenter-era PC graphics boards, and several board names ended up surviving as filename extensions even when the underlying raster structure stayed close to the wider TGA family.
Format comparison
| Feature | IIQ | VST |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2007 | 1987 |
| Inventor | Phase One | Truevision |
| Status | proprietary | active |
| 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 | Supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use IIQ
- Your source file is already in IIQ.
- Preserve source expectations before exporting to VST.
- IIQ is commonly used in image workflows.
When to use VST
- Your target workflow expects VST.
- Improve delivery compatibility with VST.
- VST is commonly used in image workflows.
FAQs
Why convert IIQ to VST?
Convert to VST only when preserving or recovering early Truevision graphics assets in their original form, or when bridging those files into a contemporary raster format for access and restoration.
What changes when converting IIQ to VST?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to VST removes camera raw data.
What should I review after converting IIQ to VST?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.