From: Vincent Dobson (manitec@bellsouth.net)
Date: 07/19/03-10:47:06 AM Z
Dust and Static ControlSandy,
In my darkroom I have an old Rainbow vacuum cleaner (runs air through
water). I run this for a few hours - it will circulate all of the air in
the room. I have mine set up whereby the vac. (exhaust) is on one side with
the hose inlet on the other side of my darkroom. After a couple hours
running the air is free of any dust but the formerly clean water is dirty
(with it just sucking in room air)
This works great, but because of the noise, I only run it when I'm not
working. A couple of hours before I load film holders - not a speck.
Vince Dobson
Visions In Nature
www.VisionsInNature.com
-----Original Message-----
From: Sandy King [mailto:sanking@clemson.edu]
Sent: Friday, July 18, 2003 10:56 PM
To: alt-photo-process-l@sask.usask.ca
Subject: Dust and Static Control
Recently a friend sent me information about the following site on dust and
static control.
http://www.modernsolutionsinc.com/dust/duststa2.html#Anchor-60134
This got me looking at the dust and static problem in my own printing
environment. I print with two different light sources: 1) a 1000 watt metal
halide HID lamp and, 2) a large 48X32" bank of BLB tubes. Both are used with
vacuum easels and give very good, but slightly different, results. However,
the BLB set-up is interesting, almost weird, because with this light, which
is very dark blue/purplish in color, every little speck of dust, lint, dirt,
skin flakes, hair, etc. stand out in a way that is difficult to imagine if
you have never worked with BLB light. Completely different look from a bank
of BL tubes I might add.
OK, I was really shocked by all the stuff blowing around and landing on
the glass of the vacuum easel during exposure with the BLB lights. I am sure
it is happening with the Metal Halide unit as well but the color of the
light does not reveal it as well. So, what I am wondering is this. Is there
any kind of electronic anti-static device that one can attach to an exposing
unit or vacuum frame that would reject this trash, rather than attract it as
is apparently the case.
Sandy King
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