> > so, what is the right way to do that??? > The right way is the way that gives you the effect you want. B&W is an > artifical construct to begin with as the world is mostly in color. The > channel method gives you more choices but it is still the results that count. Hear hear!!!! The best result is the right result for sure. My first move would be to open the colour image in Photoshop then look at the channels one at a time. [Window] - [Show Channels] Once you have seen which of the Red, Green then Blue channels looks best in monochrome you can weight the channel mixer accordingly. [Adjust] - [Channel Mixer] - Make sure Monochrome tick-box is selected then, for example set Red = 20% Green = 50% Blue=30% and see what the image looks like Green invariably seems to contain the most information but without giving some weight to the others can look a bit "infra red". If it looks good it is good. Bob
