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Bob writes ... > That's a fair point, but I definitely do not want to have to > re-work all my old images. > From: "John M. Roper" <email@example.com> > > > > So if keeping my files in 16-bit means that in a year > > > or two I can reprint them on a 16-bit printer, > > >then that is probably a good enough reason. PS6 allows for printing 16bit images, but there is no advantage except for not having to first convert to 8bits. That is, it has been shown the increased depth (number of colors) cannot be perceived by human observation. The advantages for highbits is for severe tonal adjustments only. You should be able to demonstrate this for yourself. Crop a 16bit subtle gradient from an area of blue sky ... duplicate it ... and convert the duplicate to 8bits. Next use the 'levels' adjustment to stretch either image to fill up the RGB histogram, BUT before clikking on 'OK', save the adjustment so that it can be applied equally to the other image. Once this is done, the visual difference as well as the histograms should make the advantages obvious. Why anyone would want to apply an adjustment this severe is another question, but the next time you want to brighten and add contrast to a underexposed backlit subject and wanting to maintain subtle skin tone gradients, you might wish you were working with highbits. Two pertinent articles by Bruce Fraser can be found here: The High-Bit Advantage http://www.creativepro.com/story/feature/7627.html You Can't Do This to High-Bit Files in Photoshop (or Can You?) http://www.creativepro.com/story/feature/16097.html cheerios ... shAf :o) Avalon Peninsula, Newfoundland www.micro-investigations.com - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.