Definition(en): The Digital Negative (DNG) specification describes a non-proprietary file format for storing camera raw files that can be used by a wide range of hardware and software vendors. DNG is an extension of the TIFF format, and is compatible with the TIFF-EP standard. This version was published in December 2021 and includes support for large files (64-bit BigTIFF extension), semantic masks and triple-illuminant calibration profies.