From: Sandy King (sanking@clemson.edu)
Date: 07/08/02-12:11:17 PM Z
Ken Watson wrote:
>
>I have also heard that some lamps have a UV filter as part of their outer
>glass shell. This is there to protect the real glass envelope from water
>and dirt. I suspect one can cut this outer envelope off and get a
>tremendous increase in the amount of UV.
The H36GV-1000 mercury lamp *does* not have a UV filter, which is one
of the reasons I recommended it, along with the fact that the light
output is in the 5600K range in contrast to many of these bulbs that
operate at aroudn 3500K.
Sandy King
>
>-----Original Message-----
>From: jeffbuck@swcp.com [SMTP:jeffbuck@swcp.com]
>Sent: Monday, July 08, 2002 9:57 AM
>To: alt-photo-process-l@skyway.usask.ca
>Subject: UV Lamps, Etc.
>
>I'm trying to get together a simple UV light system to cover bigger
>negatives
>-- e.g., 7x17, 16x20, etc. I'd decided on the Luminaire system described
>by
>Sandy King in his article (which I believe is familiar to most of you).
> Sandy
>specifies an "MHSS 1000-MT Lumark Fixture w/ 23" round reflector," which is
>No. 7v197 in the '02 Grainger catalog, and a MH1000 w/v/5k Venture Lamp or,
>alternatively, an H36GV-1000 Mercury Vapor lamp. Just got off the phone w/
>Grainger, and the Lumark Fixture in question has been discontinued, as have
>both lamps. Incidentally, I hit Home Depot yesterday for some other stuff
>and
>visited the lights dept. on a whim and was told that mercury vapor lamps
>are
>now prohibited in New Mexico and have been pulled from their shelves....
> Does
>somebody know where else in the Cosmos I can acquire the items Sandy
>specifies, or does anybody have other suggestions?? Thanks. -jeff buckels
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