.x3f Sigma X3F raw image
Images
| MIME type | image/x-sigma-x3f |
|---|---|
| Description | Sigma X3F raw image |
| Acronym | X3F – X3 Foveon |
| Category | Images |
| Signature (magic bytes) | 46 4F 56 62 (FOVb) |
| Based on | image/x-dcraw |
Frequently asked questions
What is a .x3f file?
A .x3f file is a “Sigma X3F raw image” (MIME type image/x-sigma-x3f). X3F stands for X3 Foveon.
How do I open a .x3f file?
With any image viewer that supports the format – the Photos app on Windows, Preview on macOS, Eye of GNOME or GIMP on Linux. For unusual formats a converter such as ImageMagick helps.
How can you tell a genuine .x3f file?
By the bytes at the start of the file, the signature (magic bytes): 46 4F 56 62 (FOVb). On Linux and macOS, file --mime-type example.x3f checks the real type regardless of the extension.
Which format is .x3f based on?
Technically a .x3f file is a subtype of “Digital raw image” (image/x-dcraw), so programs for that base format can often read it too.
Which MIME type belongs to .x3f?
The MIME type is image/x-sigma-x3f. In the Apache web server: AddType image/x-sigma-x3f .x3f; in nginx: types { image/x-sigma-x3f x3f; }.