Micha Feigin <[EMAIL PROTECTED]> writes: > Some cameras actually compress the raw data BTW. I think Nikon does > that since nef (raw) output takes less space then tiff output.
On some Nikon cameras they are compressed using a "visually lossless" algorithm. Some recent posts on the D1scussion group indicate that it reduces the effective bit depth from 12 bits to 9. Ick. My camera has a toggle to select compressed or uncompressed, but I don't believe the lower-end ones do. But even the uncompressed ones can be smaller than TIFFs, since they only log 12 bits per pixel, where the TIFFs are 8 bits per color per pixel. So uncompressed should be about half the size. (This is because each pixel is only R, G, or B straight from the CCD.) > There is also a plugin that allows using draw to open the raw files > directly in the gimp. That should rival the Nikon capture software. In terms of quality (assuming a 16bit/color gimp), yes. In terms of ease, no, since Nikon Capture has a lot of prepackaged actions which do exactly what a photographer wants to do, and the gimp doesn't. Of course, they could be added... 8^) -- Alan Shutko <[EMAIL PROTECTED]> - I am the rocks. Idiolocation: "You are here->" on any map. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
