Quote Originally Posted by carlosmccosta View Post
How can I learn how to do it?
There are many ways...

You can use screen-plates, like the Autochrome -> http://www.apug.org/forums/forum42/7...utochrome.html

You can use a 1-shot camera -> http://www.smugmug.com/gallery/13776...65026459_3dDPF

Or you can take 3 separate exposures through 'color separation filters', Red, Green & Blue.

Or, you can play around with Lippmann photography -> http://www.apug.org/forums/forum42/6...nn-plates.html

As you can tell, this too is an area of interest for me.