>A couple of questions:
. Problem: the brush soaked up the solution before I could
even spread it. I'm using a 1.5" hake brush cut down to 1/2" length. Was
the brush too dry? Was it too small an amount of solution to work with?
Or, is the brush too thick--3/8"? <
It is best to dampn the brush first by dipping it in purified water and
then squeezing the qwater out with some absorbent tissuesuch as kitchen
>2) On this third print, the solution did not cover enough so I let it dry
and I added a second coat. The resulting print had much deeper blacks in
the areas coated twice. I seem to remember reading about obtaining deeper
blacks with a second coat, is that correct? The print also looked grainy.
I suspect in my attempts to spread the emulsion, I was too rough and that
was the cause?>
I find that if you get the negative right and the coating right there is no
need for second coating. A second coat will distort the contrast but it is
better to get the neg right first. Somake surethat your brush is damp and
that you have enough emulsion to cover smoothly.
>3) OK, one more. Does platinum have a similar exposure curve to silver?
I.E., will I see the same increase in density with a 2X exposure as I do
in printing silver?>
As you have covered the whole surface ( in theory ! ) with solution, once
you have passed the optimum exposure, you will lose contrast, as the
overall density increases, untill you have an overall black. I would be
interested to know why you think you need an answer to this question.
That's all! Thanks in advance. I'm off to work at it some more.