From: John Campbell (tojohn@texas.net)
Date: 03/19/02-11:40:07 AM Z
Keith,
If you are building a new array from scratch, why not use 48" fixtures and
40-watt tubes? I recommend Phillips product number 046677-30108-5, which is
a super actinic radiation source available in 48-inch lengths. I don't
think you'll have any problem with lengthy exposure times!
FWIW, I don't really see a problem with your staggered graphic-but I wonder
why you would need 2 1/2 inches between the fixture ends. Maybe I'm not
getting your intent.
Good luck,
-John
http://www.photogecko.com/
Home of The Gecko UV Light Box
"Get The Gecko!"
-----Original Message-----
From: Keith Gerling [mailto:keithgerling@att.net]
Sent: Tuesday, March 19, 2002 12:08 PM
To: alt-photo-process-l@skyway.usask.ca
Subject: Light source for big prints
Currently, I use a bank of Sylvania 20w Black light bulbs, which
provide coverage for 22x30 in prints. As I now have a need to print 30x40,
I am considering alternatives. One option would be to go to another light
source (yard lights, etc.) but I am concerned about lengthy exposure times.
As I am comfortable with using the flourescent source, I am wondering if
there might be a way to build a larger light bank using 22 inch bulbs. My
question: if I were to line up two banks side-by-side, and stagger them by 4
inches like this:
============ ============
============ ============
============ ============
============ ============
etc,
what are the chances that the gap between banks (approx 2 1/2 inches) would
be "filled in" and not effect the print. Currently, the print is about 4
inches from the light source.
I'd appreciate any other ideas.
Keith
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