Re: new to list

Susan,

There is a lot of talk about glass having a blocking effect on UVs, but I
find it to be no problem with the huge output of UV from a tube unit. My
printer is face up and I expose through an old glass table top 3/8ths of an
inch thick. Not only is the glass thick but it is scratched on both sides
(found it in the trash where students were moving out, also the source for
much of my wardrobe...). Neither the thickness or scratches seem to effect
exposures or sharpness. I think the scratches further scatter the already
scattered light in the box without making a shadow on the paper. Of course I
am printing mostly gum where tiny irregularities wouldn't show. Remember the
glass people are always trying to well us UV blocking glass. It its an
expensive coating process that is not used on common glass.

Jack

From: Dalyvoss@aol.com
Reply-To: alt-photo-process-l@skyway.usask.ca
Date: Wed, 03 Nov 2004 20:03:17 -0500 (EST)
To: alt-photo-process-l@skyway.usask.ca
Subject: Re: new to list

 
Hi Judy,

You wrote,

          " Another advantage of the fluorescent light table, at least mine,
       is that the paper can extend beyond the sides (I use plate glass on
       plate glass, not a contact frame), so you can use a paper larger than
       the negative, which many contact frames don't permit -- for a self
       border on the print."

This sounds like what i would want to do. I've read though, that plate
glass absorbs some of the UV light. Can anyone enlighten ( hehe) me about
that? it will be ok for me to simply cover the negative and paper with a
sheet of glass?

susan

Susan Daly Voss
lower upstate NY
Received on Thu Nov 4 09:25:11 2004