TIFF (Tagged Image File Format) is a computer file format for storing digital images. The format now belongs to Adobe Systems, producers of the PostScript printer control language and the PhotoShop image software, but was originally created by Aldus as a format for the output from scanners.
There are many variations possible in TIFF files, as programmers can create their own tags - and so some TIFF files can be unreadable by some photo processing software, however most TIFF images are created as 24-bit RGB or 32-bit CMYK uncompressed bitmaps with few tags, and can be read by most imaging software. Such uncompressed TIFF files tend to be very large, and so using TIFF can significantly reduce the number of pictures it is possible to fit into a cameras memory.
Some digital cameras have TIFF as an option for their internal file storage, usually as a higher-quality alternative to JPEG.