Screen versus Booth Color Temp
Screen versus Booth Color Temp
- Subject: Screen versus Booth Color Temp
- From: Jeff <email@hidden>
- Date: Mon, 11 Dec 2000 13:35:42 -0500
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I did a very informal test, but you decide if it's relevant. I'm a
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photographer, so I have a Minolta IIIF color meter - very common to film and
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still photographers. I took readings inside a Graphiclite view booth (non
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dimmable) and temps ranged from 6000K to 5000K depending on placement. On My
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Lacie 22 blue, which I calibrated/profiled yesterday to 6500K gamma 1.8, I
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create a white document in Photoshop 6, and fill the screen with it and
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measure various points across the screen. Temps range from 5600-5730K. I did
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the same test with my Minolta IV light meter. I won't get into specifics
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about shutter speeds and ASA, but the brightness of the incident light
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inside the view booth (at the juncture of the backstop and the bed) was 2
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full f-stops brighter than what I measure off that above mentioned white
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screen. If I were smart I would have put a bright white sheet of paper in
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the booth and read the light reflected off it, which might have yielded a
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more meaningful number, but this was an informal test.
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>
Todd
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I have econducted the same test. My readings using a Minolta IIIF and my dimmable GTI
Booth set to approximate similar brightness yielded:
Electron Blue 19 monitor calibrated to 6500K w/ Prove It: 5250K
GTI Booth: 5400K
I have cheated my monitor up a bit to match the booth with the hardware controls. I'm
glad to know I wasn't the only one with this discrepancy! Which do I believe: the
Prove It software or the color meter? Any comments would be appreciated. I am sticking
with this current tweak for now as it appears to work well..
Jeffrey Stevensen
email@hidden