This page contains information on the MEF file extension (Mamiya RAW Image), a popular video file format

MEF MEF (Image)

File extension .mef
Category Image File
Description MEF is the RAW image format for Mamiya cameras. Mamiya is a Japanese company dating back to the 1940s having been founded by camera designer Seiichi Mamiya and financial backer Tsunejiro Sugawara and is very well regarded amongst professional photographers. The Mamiya ZD camera was the first all-in-one digital medium format camera. Mamiya announced the Mamiya ZD dSLR in mid 2005 with first deliveries in late 2006 / early 2007 - this camera range supports the MEF RAW format.
Technical Details Mamiya RAW Files are uncompressed RAW images that are of a very high quality and have very large file sizes. A proprietary format, developed by Mamiya it contains a thumbnail image and an Exif IFD. The RAW file format is digital photography's equivalent of a negative in film photography - it contains RAW pixel information straight from the digital cameras sensors. RAW file format offers you more control over how the final JPEG or TIFF image is generated.
Associated programs
  • Adobe DNG Converter
  • Adobe Photoshop
  • Adobe Photoshop Elements
  • Corel Draw
Developed by Mamiya
MIME type
  • image/x-mamiya-mef
Useful links

MEF Convert MEF file

Using Zamzar, it is possible to convert MEF files to a variety of other formats

  • mef to ai (Adobe Illustrator Artwork)
  • mef to bmp (Windows bitmap)
  • mef to eps (Encapsulated PostScript)
  • mef to gif (Compuserve graphics interchange)
  • mef to jpg (JPEG compliant image)
  • mef to pcx (Paintbrush Bitmap Image)
  • mef to pdf (Portable Document Format)
  • mef to png (Portable Network Graphic)
  • mef to tga (Truevision Targa Graphic)
  • mef to tiff (Tagged image file format)
  • mef to wbmp (Wireless Bitmap File Format)
  • mef to webp (Lossily compressed image file)
MEF Converter Image