Epson ERF
Readableraw-photo
This format is the RAW image format used in Epsom cameras. RAW format images contain all the data that is taken directly from the camera's image sensor before the software in the camera applies things like white balance, sharpening etc. Storing photographs in a camera's RAW format allows you to alter those settings after the photograph has been taken.
Identify it
| Extensions | .erf |
|---|---|
| MIME types | image/x-epson-erfimage/x-raw-epson |
| Signatures | 4d4d002a at byte 0 (Epson RAW Image Format) |
| PRONOM | fmt/641 |
| Wikidata | Q28205330 |
Not sure your file is this? Identify it from its first bytes, in your browser.
Open it
- AbydosOpen source
- ExifToolOpen source
- ImageMagickOpen source
- ImageMagick (WebAssembly)Open source
- LibRawOpen source
Convert it
Convert a file in your browser The steps marked “in browser” run on your machine; nothing is uploaded.
| To | With | Fidelity | Command and losses |
|---|---|---|---|
| AVIF | ImageMagick (WebAssembly) | Partial | in browser Demosaiced with default settings: raw sensor data and editing latitude are lost. |
| BMP 5.0 | ImageMagick (WebAssembly) | Partial | in browser Demosaiced with default settings: raw sensor data and editing latitude are lost. |
| GIF 89a | ImageMagick (WebAssembly) | Partial | in browser Demosaiced with default settings: raw sensor data and editing latitude are lost. |
| ICO | ImageMagick (WebAssembly) | Partial | in browser Demosaiced with default settings: raw sensor data and editing latitude are lost. |
| JFIF 1.02 | ImageMagick (WebAssembly) | Partial | in browser Demosaiced with default settings: raw sensor data and editing latitude are lost. |
| JPEG XL | ImageMagick (WebAssembly) | Partial | in browser Demosaiced with default settings: raw sensor data and editing latitude are lost. |
| ImageMagick (WebAssembly) | Partial | in browser Demosaiced with default settings: raw sensor data and editing latitude are lost. | |
| PNG | ImageMagick | Partial | convert in.erf out.pngDemosaiced with default settings: raw sensor data and editing latitude are lost. |
| PNG | ImageMagick (WebAssembly) | Partial | in browser Demosaiced with default settings: raw sensor data and editing latitude are lost. |
| Quite OK Image Format | ImageMagick (WebAssembly) | Partial | in browser Demosaiced with default settings: raw sensor data and editing latitude are lost. |
| TIFF | ImageMagick | Partial | convert in.erf out.tifDemosaiced with default settings: raw sensor data and editing latitude are lost. |
| TIFF | ImageMagick (WebAssembly) | Partial | in browser Demosaiced with default settings: raw sensor data and editing latitude are lost. |
| WebP | ImageMagick (WebAssembly) | Partial | in browser Demosaiced with default settings: raw sensor data and editing latitude are lost. |
| GIF 89a | ImageMagick | Lossy | convert in.erf out.gifReduced to 256 colours. |
| JFIF 1.02 | ImageMagick | Lossy | convert in.erf out.jpgLossy compression. |
| WebP | ImageMagick | Lossy | convert in.erf out.webpLossy compression. |
Sources
From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), WebAssembly engines (ImageMagick, FFmpeg, Pandoc, 7-Zip, GDAL, Assimp, resvg), Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-26.