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

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From: Sandy King (sanking@clemson.edu)
Date: 12/30/02-07:06:43 PM Z


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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