Shel Belinkoff mused: > > Over the last few days I've been experimenting with some PEF files and some > files scanned from various color films. When I resize the files to the > same dimensions, the scanned files are always larger (in kb's) than the > files from the istD. While I know that there will always be some > differences in the size of files of the same dimensions, regardless of the > medium, this has me perplexed. I try to compare files with similar > information, and consistently the film files are larger. I've only done > this with about a dozen or so files, but I'd think that at least one or two > may not give such a result. Film files are larger by about a minimum of > 10%. > > Files are adjusted to the same ppi, same dimensions, and saved identically > to the same degree in Photoshop. Any thoughts on why this may be so?
Assuming you've got everything right here, you're simply seeing the fact that noisy images (such as those scanned from film) don't compress quite as well as the digital images.
