I have a old 1960's vertical Vandercook CosmoColor color separation
camera... It has a 10,000 watt pulsed xenon light head on it with 6 bulbs in
it along with a 3/4 horsepower commercial blower to cool the film
chamber.. I have hopes that it does not cook the film but it may as what
I intend to use it for is direct carbon printing which may require longer
exposures than the film can handle... I do not know at this point what the
outcome will be... If it is to much for the film I will just use it for what
it is designed for and that is a 11x14 enlarger/ color separation camera
I hope the lamps are not obsolete yet as I am in need of several... These
cameras and transformers are all over the place now and can be found very
cheap compared to what they cost new. I personally have several Pulsed
xenon transformers and I would certainly sell one once the camera is on
line . If you are interested contact me off line.. If you come across
a Vandercook Cosmo Color please let me know as I need to buy one for the
parts..
John Cremati
Cleveland , Ohio.
From: Uptown Gallery [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Saturday, August 03, 2002 9:29 PM
Subject: [Cameramakers] 10 kW UV enlarger and hello John.
Hello John:
After reading Ansel Adam's reference to pulsed Xenon lamp enlargers and
seeing a large format enlarger on the Internet owned by a guy in the
Chicago
area, I started looking into it myself.
I found the lamps (on their way to obsolescence), and the 750 W and 1500 W
ones were on the order of US$100, but the ballast (they call it a power
supply; I think it has more than one voltage) was $1600 and $3050
respectively...that's out of the question.
I have to dig thru my little black book and find names of people I knew in
the lamp industry because I want to find out what the lamp operating
starting and operating characteristics are...I'd consider winding my own
transformer (!) because I've more experience doing that than coming up
with
spare K$.
If you find any data along those lines, I'd be interested to mull it over.
But it sounds like you're pursuing a different type of lamp, maybe...I'd
worry about 'nuking' your negative with that much energy.
Murray
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