Mamiya MEF

Mamiya MEF is a raw camera image format (or family of formats?) used by some Mamiya digital cameras.

It is sometimes known as Mamiya RAW, though this can also be a collective name for both MEF and Leaf MOS.

Format
At least some MEF files use DNG format, or something similar to DNG. The first IFD (refer to TIFF) contains a thumbnail image, and is expected to have three sub-IFDs. The first sub-IFD contains the full-resolution image, and the others contain reduced-resolution images.

There is also an Exif IFD. It includes a MakerNote with no signature, which appears to be an integrated or embedded IFD.

Software

 * Refer to Cameras and Digital Image Sensors: Software.

Sample files

 * http://www.rawzor.com/downloads/samples2_original.zip → MMFC0184.MEF
 * RAW-Samples: Mamiya