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DNG at a glance
DNG
DNG emerged when professional photo workflows were already fragmented across many undocumented vendor raw formats. Adobe positioned it as a common archival and interchange option rather than just another camera-native format.
FITS at a glance
FITS
FITS became a durable scientific standard because observatories, spacecraft, and analysis tools needed a stable interchange format that outlived individual instruments and software stacks.
Format comparison
| Feature | DNG | FITS |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2004 | 1981 |
| Inventor | Adobe | NASA / astronomical data community |
| Status | active | 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 DNG
- Your source file is already in DNG.
- Preserve source expectations before exporting to FITS.
- DNG is commonly used in image workflows.
When to use FITS
- Your target workflow expects FITS.
- Improve delivery compatibility with FITS.
- FITS is commonly used in image workflows.
FAQs
Why convert DNG to FITS?
Convert to FITS when preserving scientific image data, observation metadata, or instrument-derived captures for astronomy and research workflows.
It is the right target when measurement context matters as much as the picture itself.
What changes when converting DNG to FITS?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to FITS removes camera raw data.
What should I review after converting DNG to FITS?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.