RE: Life of BL tubes, was Re: Cyan and Digital Negs

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From: Eric Neilsen (e.neilsen@worldnet.att.net)
Date: 01/12/03-10:09:28 PM Z

Scott, I didn't mean to blow you off but I just can not follow all the
groups, and stuff in life in a timely fashion right now. The integrator
itself would not speed up your exposures. It simply reads the light
output and adjusts your timer to compensate for the changing output of
your lamps.

UV lamps will have a slightly higher output after an initial warm up
period of several hours use. They then level off and output at a rather
steady rate. A metrolux II timer and a sensor would have set you back
about $400, but you would have gained control over your light sources as
they can be used for your enlarger as well. It can also read shutter
speeds of your cameras and lens.

cheers

Eric Neilsen Photography
4101 Commerce Street
Suite 9
Dallas, TX 75226
http://e.neilsen.home.att.net
http://ericneilsenphotgraphy.com

-----Original Message-----
From: Scott Wainer [mailto:smwbmp@starpower.net]
Sent: Tuesday, December 31, 2002 2:39 PM
To: alt-photo-process-l@sask.usask.ca
Subject: Re: Life of BL tubes, was Re: Cyan and Digital Negs

Hi Eric,

Maybe i'm missing something here but I thought that integrators were
part of
a plate burner (xenon being too rich for my blood, though I used one at
the
university). What exactly is an integrator and how would I use it with a
home-made flourescent system to make printing times faster? I didn't
really
see any difference in printing times with the new bulbs; probably due to
my
negatives being overly dense.

Scott Wainer
smwbmp@starpower.net

----- Original Message -----
From: "Eric Neilsen" <e.neilsen@worldnet.att.net>
To: <alt-photo-process-l@skyway.usask.ca>
Sent: Tuesday, December 31, 2002 12:29 AM
Subject: RE: Life of BL tubes, was Re: Cyan and Digital Negs

> What you might have gained in printing time, you lose to the change in
> output of new bulbs as they change after several uses. I would think
> that your money would have been better spent on an integrator.
>
> Eric Neilsen Photography
> 4101 Commerce Street
> Suite 9
> Dallas, TX 75226
> http://e.neilsen.home.att.net
> http://ericneilsenphotgraphy.com

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