Re: Lith Printing Infrared Negatives

[Tala Brandeis <brandeis@xxxxxxxxxxx>]

> ------------------------------
> 
> Date: Wed, 8 Dec 1999 04:24:15 -0000
> From: "Tim Rudman" <tim.rudman@xxxxxxxxxx>
> Subject: Re: Lith Printing Infrared Negatives
> 
> - ----- Original Message -----
> From: Tala Brandeis <brandeis@xxxxxxxxxxx>
> To: <infrared-digest@xxxxx>
> Sent: Tuesday, December 07, 1999 5:17 PM
> Subject: Lith Printing Infrared Negatives
> 
> > I've been experimenting with different mixes of chemistry
> > and lith printing on different papers and a range of
> > temperatures.  When printing Agfa Portriga Rapid at times
> > I obtain an image that loses sharpness rather visibly.
> > The effect seems to depend on the amount of silver halide
> > solvent in the soup and/or temperature of the soup.
> >
> > Any one else out there who may have experienced the
> > degredation of sharpness in an image while lith printing?
> >
> >
> > Tala
> > brandeis@xxxxxxxxxxx
> 
> I don't use Portriga for lith but if you exhaust your lith dev too much or
> replenish too often you will get even severe loss of image quality Tala
> Tim
> 

Tim:

Thanks for the reply.

So, what's at work here chemically...
Would I be correct in assuming the exhausting of the developer
and resulting image degradation is the result of increased bromide?
What is the contributing factor in replenishment... again an increase
in bromide?  

Tala
brandeis@xxxxxxxxxxx
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