Re: ..Glass plate negatives..

Wayde Allen (allen@boulder.nist.gov)
Tue, 30 Dec 1997 08:36:50 -0700 (MST)

On Tue, 30 Dec 1997, Cor Breukel wrote:

> question. I presume that these plates will have built up a considerable
> base-fog. Are there any chemicals which I can use to reduce this fog
> (something you can add to your developper, I was thinking of using D76 to
> start with).

I've heard of people adding benzotriazole (sp?) to the developer for this
kind of work.

> I also assume that the speed will be roughly doubled due
> to it's age.

I'm not sure why you'd assume this? I suppose it is possible, but the
first and possibly the second plate will probably best be tests.

- Wayde
(wallen@boulder.nist.gov)