Evan Millner wrote:
Greg Scheckler: when was the last time that you ever heard of an artist doing a carefully controlled experiment on the side?
I do them all the time, testing artists' materials, paints, etc., on my own and for ASTM. Of course I'm atypical. My pastel testing has prompted at least three manufacturers to reformulate their lines with the objective of better lightfastness. There will be more before I'm done.