Re: lith film

[Erie Patsellis <erie@shelbyvilledesign.com>]

Judy Seigel wrote:
> On Sat, 13 Sep 2008, Richard Knoppow wrote:
>
> > >
> >    The most common anti-fog agents are potassium or sodium bromide 
> > and benzotriazole. The effectiveness of both varies with the pH of 
> > the developer. Benzotriazole is supposed to have less effect on film 
> > speed for a given amount of fog suppression.
> Yes, I practically remember them now, thank you. But not to lose my 
> original point, which is that lith film, originally high contrast (to 
> make good dots for halftones in commercial repro) and therefore 
> difficult to develop as continuous tone, loses contrast as it ages, 
> therefore, in my experience and general agreement, OLDER works better 
> for our purposes.
>
> J.
And thankfully, I have some 1000 or so sheets of 16x20 just getting 
about right...

erie