I think Henry Wilhelm reserved it for his book, I can't find the film
data from his home page. Seems that he has concentrated on the printer
ink (dye) and paper, there is nothing mentioning film.
C.H.Ling
"John A. Lind" wrote:
>
> 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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