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

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From: Eric Neilsen (e.neilsen@worldnet.att.net)
Date: 12/30/02-11:29:00 PM Z


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

-----Original Message-----
From: Scott Wainer [mailto:smwbmp@starpower.net]
Sent: Monday, December 30, 2002 7:23 PM
To: alt-photo-process-l@sask.usask.ca
Subject: Re: Life of BL tubes, was Re: Cyan and Digital Negs

Hey Sandy,

I was told by the retailer that the bulbs (GE) had a life of about
10,000
hours and that I should replace them after 1/4 of their life because
they
lose output drastically after that period of time. I would estimate the
use
of the bulbs at somewhere around 1500 hours. I still have the old bulbs;
I
hate to throw anything away (take a look at my stack of reject prints;
now
over four feet high - he,he). Seriously though, I guess the store was
just
trying to get more money out of someone who didn't know better. I
thought
that replacing them might make for faster printing times.

Scott Wainer
smwbmp@starpower.net

----- Original Message -----
From: "Sandy King" <sanking@clemson.edu>
To: <alt-photo-process-l@skyway.usask.ca>
Sent: Monday, December 30, 2002 8:06 PM
Subject: Life of BL tubes, was Re: Cyan and Digital Negs

> Scott wrote:
> >
> >About the BL bulbs -
> >I just replaced all 14 about a week ago (the old ones were about a
year
> >old - past their prime) and made sure that they were clean when I put
them
> >in.
>
>
>
> What made you think that year old BL tubes were past their prime?
> These tubes are rated for thousands and thousands of hours. Did you
> really use them that much in a year? I used a set of BL tubes for
> over five years and exposure times at the end were virtually
> unchanged from when the tubes were new.
>
>
>
> Sandy King
>


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