Tests are theoretically designed to expose the material to conditions that will more rapidly age. For example, if you are worried about colour-fast in light then exposure to a higher intensity light source (with the same wavelength characteristics) should test. When matched with curve-fitting from real life it can give you an idea (simply if 6 months in sunlight and 6 min under the brighter light reduced colour 10% then 12 min under the lamp is at least 6 mos aging). Your mileage will vary. Dave ----- Original Message ---- From: Snoopy <snoopy@xxxxxxxxxx> To: pure-silver@xxxxxxxxxxxxx Sent: Tuesday, January 2, 2007 2:16:22 AM Subject: [pure-silver] Re: [lens] Re: Film vs Digital- was: Amusing Kodak commercial Dear Kent, At 20:41 01.01.2007, you wrote: > I saw a print made with a third party carbon based quad toned ink, > printed on an Epson printer that had spent two weeks under saltwater > and 4 months baking in the New Orleans sun. The mattes were destroyed > but the image still looked as good as the day it was printed. No > silver based print would have survived. With that said though, I do > love silver. Kent Yeah right, thats what I do witzh my prints every Thursday evening at the Photo Club :-) :-) I really wonder, who makes these tests up, they do not seem to reflect "normal usage" of prints. However I now have the first few audio CDs desintegrating on me, they were "printed" in the late 70s and early 80s. The silver is coming off, my CD player got contamintated with silver flakes. Some CDs are now so warped, they don´t fit the CD player "tray" anymore. Thank you. Some of the CDs I found are now discontinued, I can only get hold of them via (illegal?)exchange servers. And they told us that CDs would last "forever". I hope that my scepticism about such claims will live forever and hopefully survive me... Love Snoopy ============================================================================ ================================To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ====================================To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there. ============================================================================================================To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.