View MEF files in your browser
MEF is the raw format of Mamiya's medium format digital cameras, the Mamiya ZD of 2004 and its ZD back. No browser shows it. Filepeek develops it in your browser, without uploading it.
Or drop it anywhere on this page
What you'll see
Your file opens at actual size, or shrunk to fit your screen.
- Actual size, or shrunk to fit
- Drag to pan • Pinch or scroll to zoom
- Fullscreen
- Export • Save as PNG or JPEG
About MEF
MEF is the raw format of Mamiya's medium format digital cameras, the Mamiya ZD of 2004 and its ZD back. Mamiya's later backs, made with Leaf, save MOS files instead.
A MEF is built on TIFF and holds the 22 megapixel sensor's 12 bit data with the camera's settings.
No browser shows MEF by itself. Filepeek develops it with LibRaw, the open source raw decoder, using the camera's white balance, and Export saves a JPEG or a PNG.
Mamiya Electronic Format
.mef
Format
- MIME type
- image/x-raw
- Made by
- Mamiya
- Released
- 2004
Inside the file
- Holds
- Raw sensor data
- Bit depth
- 12 bit
- Cameras
- Mamiya ZD and ZD back
- Built on
- TIFF
Opens in every browser
No browser shows MEF by itself. Filepeek develops it with LibRaw in Chrome, Edge, Firefox and Safari.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Questions
How do I open a Mamiya raw file?
Drop it on this page or press Peek a MEF. It opens right in your browser, with nothing to install.
Can I convert MEF to JPEG?
Yes. Choose Export, then Save as JPEG.
What about MOS files from Mamiya Leaf backs?
They open here too, the same way.
Is my photo uploaded?
No. The photo opens inside your browser and never leaves your device.