Re: Tmax 100 and UV Blocking

Sandy,

Could the film still successfully be used with the longer exposure times, or
would the image get screwed up? Reciprocity failure?

Thanks,
Mark

In a message dated 3/5/04 2:03:22 PM, sanking@clemson.edu writes:

> 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
>

Mark Nelson
Precision Digital Negatives
Received on Fri Mar 5 14:32:06 2004