Epson ERF

File Format
Name	Epson ERF
Ontology	Electronic File Formats Cameras and Digital Image Sensors Epson ERF
Extension(s)	.erf
PRONOM	fmt/641

ERF files are generated by the Epson R-D1 and R-D1s digital rangefinder cameras.

Organization

Epson ERF files are TIFF/EP files. CFA data is in the primary subIFD from IFD0. Thumbnail is 8RGB in IFD0. Exif is attached to the ExifIFD of IFD0.

Compression

The CFA image date is "compressed", bit packed. The Compression value in the CFA subIFD is set to 32769.

Software

• Refer to Cameras and Digital Image Sensors#Software

Sample files

• RAW-Samples: Epson
• https://telparia.com/fileFormatSamples/image/erf/