>>>http://www.cs.cmu.edu/~dellaert/aligned/
>>
>>Thanks for that URL, Dragan. They're fabulous. I understand the principle of taking 3 photos, each with a different coloured lens, but when I see the resulting 3 B&W images and know that combining them gives colour - that's where my brain goes "DOES NOT COMPUTE!" :-)
>
>My thoughts exactly. I understand the primary colors and all that, but it is still amazing how it works. I guess the guy was a genius.

Well I've seen a similar phenomenon in, say, Photoshop, where you can splice a colour picture into 3 monochrome components and when you recombine them they make colour. So the thing doe s work that way. But where did this Russian get colour photographic paper from. Even when I was a kid thjey were still tinting B&W photos to make pseudo-coloured imnages.