RE: Platine and No 2. grain
John Rudiak (wizard@laplaza.taos.nm.us)
Tue, 21 May 1996 17:18:33 -0600 (MDT)
>
>
> > I don't think it's quite that simple Terry. I think that what it really
> > comes down to is having a certain density of sensitizer on the paper.
> > I've found that something on the order of 0.75 drops of sensitizer per sq.
> > in. of coated area to be a good minimum target -- more than that won't do
> > any harm except to your wallet.
> >
> > The Platine paper is not very absorbent -- it will not take this amount
> > of sensitizer in a single coat as some of the other papers will.
> > Therefore, it is necessary to doublecoat the paper to reach the necessary
> > density. I also find it necessary to allow this paper to dry naturally,
> > to allow the sensitizer to soak in a little.
> >
> >The papers I use enable one to get a full range of tones without coating twice.
> If the result you want is only obtainable from the Platine paper and that means
> coating twice, fine. But my pocket says that it prefers a single coat. I use 1
> ml for a 10 x 8 or 0.25 of a drop per square inch at 20 drops per ml, but I
> usually up the amount to 1.2 ml to ensure even coverage. That is quite a bit
> easier on the pocket.
>
> Terry King
>
> Terry King
>
It seems evident that there is no one way for things to work when human
beings are doing the work. I also only single coat, not seeing any need
to double coat. I am using Platine at this time, but plan on trying the
papers Terry is fond of. Terry is using 1 ml. of sensitizer per 8X10,
David is using three, I use two, air dry until the coating appears not
blotchy, than heat dry in a cabinet to keep oxalate particle from
floating around in my darkroom.
Terry, is that 1 ml. of sensitizer, or 1ml. of platinum solution to which
you add 1ml. of oxalate? I thought I was using near the minimum
spreadable amount to evenly coat, and can't seem to get less that 2ml. to
coat evenly on any paper I have tried. Also D-max seems to suffer.
The smoothest, creamiest prints are made without any contrast boosting.
Make your negatives the right way.
John