Re: Light Booths
Re: Light Booths
- Subject: Re: Light Booths
- From: Robin Myers <email@hidden>
- Date: Tue, 26 Feb 2002 14:54:03 -0800
- Organization: Robin Myers Imaging
>
A simple question. Does anyone know if there is an optimal warm up time for
>
light booths? Is it preferable to keep them on 8 hours a day or turn them on
>
and off as you need them to preserve bulb life? Does the color change as
>
they warm up? Or can they be used immediately?
The answers to your questions depend on the type of lights used in the viewing booth.
Booths that use incandescent lamps can be used within a minute of turning them on. The
color does not change.
Booths with fluorescent lamps (the majority of booths, I believe), need to be warmed up
before use. The color and brightness of a fluorescent lamp changes as the lamp warms up.
I recommend a half-hour warmup before using fluorescent lamps for critical color
comparisons. Also, as the temperature changes, the color of a fluorescent lamps changes.
Also, dimming a fluoresent lamp often changes its correlated color temperature, so watch
out when using a dimming booth and matching to a monitor screen. Also, the lifetime of
fluorescent lamps is reduced by quickly cycling them on, then off. If you wait for a
half-hour warmup, then perform the comparisons and then turn off the booth, that should
not decrease the life of the lamps appreciably.
Robin Myers
-------------
Robin Myers Imaging
www.rmimaging.com
email@hidden
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| References: | |
| | >Light Booths (From: Scott Griswold <email@hidden>) |