"Mark T." wrote: > TIFF > - 48-bit, lossless, large files > > TIFF with LZ compression > - As above but files can be much smaller (esp if image is not grainy or > detailed), eg typically 1/2 to 1/5 original size > > JPEG > - 24-bit, lossy but adjustable. File sizes often less than 1/5 of the > uncompressed TIFF (depending on quality setting and image content) > > PNG > - 24-bit, lossless. File sizes usually a bit smaller than compressed TIFF, > but not as small as JPEG. > (PNG's are also readable by most browsers, which makes them useful for > 'critical' web-display.) > > FWIW, I always use TIFF without compression if in any doubt (I have had > quite a few problems with lack of portability of LZ'd TIFs), and I am now > moving over to PNG's for my own file storage in order to save CD > space. The lack of 48-bit quality hasn't yet been an issue for me..
There a new lossless compression software called 'MR SID', lizardtech software to very highly compress images. (www.lizardtech.com) I have not used it, but have gotten rave reviews from a friend who does 'rarebook/fine library' digital cataloguing. Harvey Ferdschneider partner, SKID Photography, NYC
