Re: Lightbox Measurement
Re: Lightbox Measurement
- Subject: Re: Lightbox Measurement
- From: "Fleisher, Ken" <email@hidden>
- Date: Wed, 19 Aug 2009 18:06:10 -0400
- Thread-topic: Lightbox Measurement
Okay, thanks! That's what I assumed. The good news is I am not measuring
transparencies, just the light box viewer itself, so there is not a problem
with alignment. I guess I'll just have to figure out a way to keep the
weight from being too troublesome.
On 8/19/09 5:36 PM, "Robin Myers" <email@hidden> wrote:
> The monitor measurement fixture helps block ambient light from
> affecting the measurement. If you are measuring with the room lights
> on then it would be a good idea to leave the fixture attached for your
> transparency measurements. The alternative is to turn off the room
> lights and make sure there is no window or skylight illumination.
>
> The difficulty keeping the monitor fixture attached for the
> transparency measurements is that it makes positioning the
> spectrometer on the transparency more difficult. Measuring large area
> items such as filters would present no problem, but measuring an IT8
> transparency is much more difficult with the monitor fixture attached.
>
> Robin Myers
--
Ken Fleisher
Photographer
Imaging & Visual Services
National Gallery of Art
Washington, D.C.
Phone: (202) 712-7471
email@hidden
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