Which files does Cullit open?
Before installing anything, the useful question is whether the app can read your camera at all. Here is the verified list, and a box to check yours against it.
Cullit opens RAW files from the major camera makers — CR3, CR2, NEF, ARW, RAF, ORF, RW2, DNG — along with the everyday formats JPEG, PNG, TIFF. It reads the JPEG preview embedded in each RAW rather than rendering the whole file, so frames appear as fast as you can move through them.
| Format | Written by | Kind |
|---|---|---|
| CR3 | Canon | Camera RAW |
| CR2 | Canon | Camera RAW |
| NEF | Nikon | Camera RAW |
| ARW | Sony | Camera RAW |
| RAF | Fujifilm | Camera RAW |
| ORF | Olympus · OM System | Camera RAW |
| RW2 | Panasonic · Lumix | Camera RAW |
| DNG | Adobe · Leica · Ricoh | Camera RAW |
| JPEG | Any camera, phone or editor | Everyday image |
| PNG | Any camera, phone or editor | Everyday image |
| TIFF | Any camera, phone or editor | Everyday image |
DNG is an open format: some cameras can be set to write it instead of their own RAW, and that route works here too.
This table is the verified list, not an exhaustive one. A format that is missing has not been ruled out — it has not been checked.
Related
Primary sources for the standards named above:
- Digital Negative (DNG) — Adobe, the openly published, royalty-free raw format some cameras write instead of their own
- Exif — Exchangeable image file format for digital still cameras — CIPA, the camera metadata that records capture time, which grouping a shoot into scenes relies on