Pentax PEF

File Format
Name	Pentax PEF
Ontology	Electronic File Formats Cameras and Digital Image Sensors Pentax PEF ; ; ;
Extension(s)	.pef, .ptx
MIME Type(s)	image/x-pentax-pef, image/image/x-ptx
Wikidata ID	Q3964876

Pentax PEF (or Pentax RAW) is a raw image format associated with Pentax digital cameras. It is based on TIFF.

Identification

If, in the first TIFF IFD, the Make or Model tag has a value that begins with "PENTAX", or the Compression code is 65535, it's probably a PEF file.