Re: UGRA/UDACT-conforming displays [was: i1Display x i1Pro]
Re: UGRA/UDACT-conforming displays [was: i1Display x i1Pro]
- Subject: Re: UGRA/UDACT-conforming displays [was: i1Display x i1Pro]
- From: Thomas Holm/pixl <email@hidden>
- Date: Mon, 30 Mar 2009 11:21:33 +0200
On 28/03/2009, at 17.33, Eric Nunn wrote:
as UDACT whilst recommending luminance of at least 120cd/m2 also
suggests D50/160cd/m2/L*. My feeling is that the 160 luminance is
partially to offset the D50? But in my clients case we are not
comparing to a viewing booth directly, so up to now I have been
calibrating to D65/120/gamma2.2.
Guys, when selecting a gamma (or tone curve) for calibration the most
important consideration is what your workspace of choice is.
If you calibrate to L* and use Adobe RGB as you workspace, the
graphics card lut will steal about 20% of your levels, if you
calibrate to Gamma 1.8 (and use Adobe RGB) you loose around 10%...
L* is fantastic as long as you use ECI RGB v2 or another L* based
workspace.
If you use ECI RGB v1, Apple RGB or ColorMatch, you need gamma 1.8,
if you use Adobe RGB(1998) or sRGB, it's gamma 2.2.
Best Regards
Thomas Holm / Pixl Aps
- Colour Management Consultant
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- www.pixl.dk ยท email@hidden
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