At 02:29 AM 7/08/01 -0700, you wrote: >I am very intrigued by the number of people on this list how have color >deficiency. Does anyone know how common this is in the general >population (or even just the male population)? Quite a few of us, I'll wager.. About 10% of the male population have 'colour impairment', most commonly in the red-green area, like me. Very few are truly blind to colour and actually see in b&w, so the world is still very colourful to most of us. Have a look here for an interesting discussion with Dan Margulis (just click on the yellow link..): http://web1.ledet.com/margulis/ACT_postings/ACT-Colorblindness-Web.html >I also find it interesting that a very color demanding field >(Photography with interest in digital scanning) would attract so many >people who have to deal with color perception disabilities. Me too! I've always wondered why on earth I am so fascinated by colour and want to work with it despite the difficulty - perhaps it is exactly *because* of the added attention one has to pay to colour early in life. I remember a teacher in about 2nd grade making unkind comments about the lime green lion I had painted. I figured they were green so they could hide in what I presumed was the green grass of Africa. :) Before that I had no idea I had a problem.. >Maybe if enough people with this condition demand more objective color >control we'll all benefit from easier to use color management. And wouldn't life be wonderful!!!! sigh. But from what I see, I'll be dead and gone before it is easy. :( My approach (currently being implemented..) is to carry a colour test target with me, include it as one frame in the shoot, and then try and get the numbers to match as best I can. (And get someone normal to check on me now and then..) mark t