Hmmm...this is interesting. In order to make a decent b&w image you will need to use R, G and B together (otherwise you'll have dropout color - for instance, you don't use the R channel ... anything that is red in your scene will lose some or all detail). I think it may be possible that Mike and NPlus are both right; but that it may depend on your camera. If you think strictly in a 3 array/pixel arrangement (1R, 1G, 1B for each pixel in the final image) then you can't get any more detail in grayscale than you can in color. However, I believe most medium priced and higher digital cameras add a 4th element in so that is's G-R-G-B. Now, the question becomes, can the camera in some way break apart (not physically) this group of 4 that it uses for color mode and use the groups in a slightly different configuration for grayscale? shrug -=>Donald