.orf Olympus ORF raw image
Images
| MIME type | image/x-olympus-orf |
|---|---|
| Description | Olympus ORF raw image |
| Acronym | ORF – Olympus Raw Format |
| Category | Images |
| Signature (magic bytes) | 49 49 52 4F 08 00 00 00 (IIRO....) |
| Based on | image/x-dcraw |
Frequently asked questions
What is a .orf file?
A .orf file is a “Olympus ORF raw image” (MIME type image/x-olympus-orf). ORF stands for Olympus Raw Format.
How do I open a .orf 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 .orf file?
By the bytes at the start of the file, the signature (magic bytes): 49 49 52 4F 08 00 00 00 (IIRO....). On Linux and macOS, file --mime-type example.orf checks the real type regardless of the extension.
Which format is .orf based on?
Technically a .orf 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 .orf?
The MIME type is image/x-olympus-orf. In the Apache web server: AddType image/x-olympus-orf .orf; in nginx: types { image/x-olympus-orf orf; }.