RE: Contrast
RE: Contrast
- Subject: RE: Contrast
- From: "Mark Rice" <email@hidden>
- Date: Wed, 11 May 2005 14:39:20 -0400
- Organization: Zero One
I believe the monitor should attempt to achieve maximum contrast. A
transparency has a range of approximately 1000:1 Paper reflective output is
capable of 80:1 or with special papers, perhaps 120:1.
The profile should be used to create the lowered contrast of the proofing
media. You may want the black value of the proof area on the monitor to be
representative of the black reflectance of the proof media, but the
non-image black should be full monitor black - otherwise, the whole thing
just appears "hazy".
Mark Rice
www.zero1inc.com
email@hidden
-----Original Message-----
From: Andrew Rodney [mailto:email@hidden]
Sent: Wednesday, May 11, 2005 12:27 PM
To: email@hidden; email@hidden
Subject: Re: Contrast
On 5/11/05 10:22 AM, "Mark Rice" wrote:
> In general, more contrast is better. But because the response of the
> eye is exponential, it may be difficult to distinguish between 400:1
> and 1000:1 - they may appear nearly identical.
The question is, do these displays allow control over black luminance
independently over white? Ideally we want the black to be as dark as
possible while still controlling white luminance. With a white point
luminance target of 100cd/m2 and a black point of .25 cd/m2, a ratio of
400:1 (100/.25) is produced and this is similar to many photographic output
media. But as we up the white luminance, what happens to black and vise
versa? With my Artisan, the max contrast ratio is fixed at about 500:1 but I
can calibrate it to adjust the two ends to produce an exacting and lower
ratio. Can this be done with these LCDs? Can this be switched "on the fly"?
Andrew Rodney
www.digitaldog.net
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| | >Re: Contrast (From: Andrew Rodney <email@hidden>) |