Karl, Was the trucks paint some sort of nano pigment? That's something Ford used to offer. Cars looked kind of pinkish, kind of blueish... . Kind of gorpy! The paintings I saw were displayed kind of like you suggest with more than one color temp light. That was not on-purpose! Can't find the pics I took of them with our gallery manager holding them at different angles - darn! Now the question is - where can I get some for my ink jet printer? I could make my own from crushed butterfly wings, Windex, glycerin,... AZ LOOKAROUND - Since 1978 Build a 120/35mm Lookaround! The Lookaround E-Book 5ed. GET FREE COPY http://www.panoramacamera.us > -------- Original Message -------- > Subject: [SPAM] Re: Imaginary colors Speculation > From: karl shah-jenner <shahjen@xxxxxxxxxxxx> > Date: Mon, November 09, 2009 11:28 am > To: List for Photo/Imaging Educators - Professionals - Students > <photoforum@xxxxxxxxxxxxxxxxxx> > Alan: > That poses an interesting problem. What kind of pigments would a > non-human use? I'm think something in UV range made from fluorescing > minerals or something like that. There are some artist pigments that > change colors depending on angle of light. Looks way-cool in gallery. > Move your head a bit and what was one color changes to another. I'll see > if I can find example from a gallery show we had last spring. > here's a car I photographed painted in one such style of paint > http://members.iinet.net.au/~shahjen/images/small.jpg