07-01-2011, 11:03 PM
I have heard the same about flashes and I can see this possibly being true for pigments that are organic based. UV light has a way with organic structures. However, I cannot possibly see the problem with stone, marble, etc especially since its white and no color degredation should occur.
"You have to laugh at life or else what are you going to laugh at?" (Joseph Rosen)
Paolo
Paolo