Re: Calibrating a Lacie Blue 22
Re: Calibrating a Lacie Blue 22
- Subject: Re: Calibrating a Lacie Blue 22
- From: Roberto Michelena <email@hidden>
- Date: Mon, 27 Nov 2000 20:35:19 -0500
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I used Precal to get them to D50 (I know all the controversy that surrounds
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this white point) and then I calibrated them with Optical. I set my display
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brightness black to .30 candelas but my display brightness white only
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reaches 75 candelas. I even tried bumping black up to a higher number but it
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didn't effect the white.
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I have calibrated other 21" displays brighter than 75. The Lacie 19"
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displays get up to around 120 candelas.
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I thought for sure the 21" Lacies would reach at least 100 candelas. Any
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thoughts?
Probably here there are OptiCal users more experienced than I am, but my
take:
- when doing PreCal, you are not only setting a starting white point, but
also a starting gun power level. And then, when doing OptiCal, you are no
longer requested to move the individual guns, just the brightness and
contrast controls.
- so, if you PreCal to D50 but too dim, Optical will not be able to make
up for that via just brightness & contrast.
- when doing PreCal, it places its "aim points" based on the current
brightness; so before doing PreCal, pump the guns higher than you are
doing now. Maybe do PreCal twice: first do it to see more or less the
proportions between the gun levels. Then set the guns so that the highest
one reaches 100%, and the others keep proportion. Then do PreCal again;
this time it will end up much brighter, albeit at the same D50 since
that's its purpose.
- then OptiCal should be able to take care of the rest via brightness &
contrast.
-- Roberto Michelena
EOS S.A.
Lima, Peru