OptionalBitOptionalBitsOptionalBMPOptionalColorOptionalCommentOptionalCompressionOptionalCurrentOptionalDirectoryOptionalEncodingOptionalExifOptionalFileOptionalFileOptionalFileOptionalFileOptionalFileOptionalFileOptionalFileOptionalFileOptionalFileOptionalImageOptionalImageOptionalImageOptionalImageOptionalMIMEOptionalNumOptionalNumOptionalPixelsOptionalPixelsOptionalPlanesOptionalPreviewOptionalY
These tags are not metadata fields, but are intrinsic to the content of a given file. ExifTool can't write to many of these tags.