> I published that article "Perfection XR-1?" on my Unblinking Eye site
> a couple of years ago, but have been pursuing alt processes for some
[quoted text clipped - 4 lines]
> would like to do some comparisons with the commercial product and the
> formulae on my site, I'd be happy to share the XR-1 with them.
I've been studying the patent. Heavy emphasis is placed on a developer
designed for slow high contrast films which will yield full gray scale
negatives. Also emphasized is it's ability to produce negatives of high
color fidelity.
Now that's a new one on me. I had never thought of the developer being
a factor in a film's color response. What have you to say to that?
An amount of preservative, sulfite, is added to bring the solution
to a ph of 9 or better; dual purpose sulfite.
No restrainer is called for. The accelerator, " if any ". And just
what might one expect from 1/2 or 3/4 gram of borax anyway?
So what's left? One to two grams of phenidone, thirty, give or take,
grams sulfite, and some fraction of a gram of metol and hydroquinone.
The patent allows for considerable variation.
This is just a perhaps but I think the marketed version was a one-
size fits all formulation. The 86 degree temperature fit the slow and
high speed films. From the patent: slow high contrast films, 68 to 72
degrees; Pan F, KB 14, etc, 70 to 80 degrees; and Tri X, etc, 85 to
100 degrees.
Perhaps three or four versions should have been marketed. In my
book the high temperatures needed call for a more active developer.
One would have to experiment.
At your site I examined the N, N-, and N+ EIs. There is quite
a variation twixt the films. A few films may not work well with any
variation.
Think SPEED!
BTW, Mr. Anneman is alive, at least according to a post from Mr. B.
Troop this NG about a year ago. I don't know anything more than that
of the fellow. Dan