John Rudiak (wizard@laplaza.org)
Thu, 14 Jan 1999 13:50:18 -0700
Thanks for the kind words, dan, but remember to add mothers natures 14.5 lbs
to ther 1 1/2 oz. seriously, though, by moving the top glass around, all
the air gets smushed (photo technical term) out and it is not unlike a
vacuum. I don't use wavy or crenellated papers, but do use three ply
bristol that has a pronounced curve, in sizes to 16X20 on 23X30 paper.
John
DanPhoto@aol.com wrote:
> John Rudiak makes wonderful prints (Hey John) but a word of caution with
> papers that are very wavy or seersuckery (is that a word?).
>
> I had trouble using the "thick glass" method with some problem papers.
> With a 16 X 20 piece of glass that weighs 30 pounds, the pounds per
> square inch is only about 1.5 ounces. It doesn't compare to mother
> nature's 14.7 POUNDS per square inch that a vacuum frame will provide.
>
> Dan
>
> In your email you stated...
>
> > This is far more common with 16x20 paper
> >than with 11x14 or 8x10. I'm going to have to try John Rudiak's
> >
> >>pieces of 20X24 plate glass, the bottom one covered with black felt
> >>is 1/4 inch and the top is 3/8"
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