On Mon, Jan 14, 2013, at 04:37 AM, RussellMc wrote: > I'm posting this to highlight the possibly unexpected effects of the > strong > blue-light component in White phosphor type LEDs. >=20 > It's reported that paintings from around 1890 which use the "Chrome > Yellow" > yellow pigment are at risk of rapid fading when LED lighting is used. I > surmise (possibly incorrectly) that this is caused by the strong blue > component in such lighting. >=20 >=20 > http://rt.com/art-and-culture/news/van-goghs-changing-color-901/ I am never surprised when supposed experts who are trusted to care for our most precious resources do such stupid things. Obviously the lesson they learned with fluorescent lights many years ago did not stick. Artwork is halogen-only, with UV-blocking filters. That is the standard for galleries. Not to mention the horrible color rendition of todays LED lighting. It's fine for a laundromat art show, but van Gogh, really? Best regards, Bob --=20 http://www.fastmail.fm - The way an email service should be --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .