At 13:04 1/9/02, C.H.Ling wrote:
Hi John,
Thanks for the updated data, the data I have seen was from 1990 Henry
Wilhelm report, which has put "185 (tentative)" for Velvia, may be he has
not finished the test that time.
C.H.Ling
Should have stated my quote of Henry Wilhelm is from a 1993
excerpt. Rochester Institute of Technology (RIT) is apparently involved
with image stability testing also. I haven't done enough digging to find
out what's available from them on-line though.
-- John
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