Re: Tmax 100 and UV Blocking

By what method is it possible to measure UV blocking of the Tmax 100,
or, for that matter, different inkjet inks on OHP?

Jack Reisland

Sandy King wrote:

> I just spoke to Dick Arentz about the question of UV blocking in Tmax
> 100 film. After being alerted to the potential problem of this film,
> first discussed on this list, he tested Tmax 100 with Pt/Pd and
> confirms that the effective UV blockage is approximately three full
> stops.
>
> So unless you lust after very long exposures you might want to
> eliminate this film from your sack of tricks for Pt/Pd printing, and
> most likely for all other alternative processes based on exposure
> with UV radiation.
>
> Just for the record, I have not measured any UV blocking of this
> magnitude in Tmax 400, or for that matter in any other films by Kodak
> or Ilford.
>
> Sandy King
Received on Fri Mar 5 14:42:05 2004