RE: Calibrating a Lacie Blue 22
RE: Calibrating a Lacie Blue 22
- Subject: RE: Calibrating a Lacie Blue 22
- From: "Benfer, Eric A." <email@hidden>
- Date: Tue, 28 Nov 2000 10:41:18 -0500
So here is the trick.
I set each of the R G and B guns to 100% and then backed the B and G guns
off until I got to D50. I now measure a whopping 137 cd/m^2.
I have two workstations with two Lacie 22s. Now I can set them all up to .30
cd/m^2 black and 100cd/m^2 white luminosity.
A side note about price. I paid $1129 each for my LaCie Electron 22" Blue II
w/Hood 2048x1536 @75Hz. I noticed the same retailer selling the Mitsubishi
22" DiamondPro 2040u USB 2048 x 1536 @ 75Hz for $1175.
I always assumed the Mitsubishi was a less expensive monitor.
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From: Roberto Michelena
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Sent: Monday, November 27, 2000 8:35 PM
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To: Benfer, Eric A.; 'email@hidden'
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Subject: Re: Calibrating a Lacie Blue 22
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*This message was transferred with a trial version of CommuniGate(tm) Pro*
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>I used Precal to get them to D50 (I know all the controversy that
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surrounds
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>this white point) and then I calibrated them with Optical. I set my
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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
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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?
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Probably here there are OptiCal users more experienced than I am, but my
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take:
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- when doing PreCal, you are not only setting a starting white point, but
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also a starting gun power level. And then, when doing OptiCal, you are no
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longer requested to move the individual guns, just the brightness and
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contrast controls.
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- so, if you PreCal to D50 but too dim, Optical will not be able to make
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up for that via just brightness & contrast.
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- when doing PreCal, it places its "aim points" based on the current
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brightness; so before doing PreCal, pump the guns higher than you are
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doing now. Maybe do PreCal twice: first do it to see more or less the
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proportions between the gun levels. Then set the guns so that the highest
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one reaches 100%, and the others keep proportion. Then do PreCal again;
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this time it will end up much brighter, albeit at the same D50 since
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that's its purpose.
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- then OptiCal should be able to take care of the rest via brightness &
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contrast.
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-- Roberto Michelena
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EOS S.A.
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Lima, Peru