NEC SpectraView Profiler 5 User Manual page 52

Profiler
User Manual
The only use of a gamma calibration is a workflow with data which need
to be displayed with a certain gamma or other tonal response curve
(e.g. video or web design = sRGB) out- side a color managed environ-
ment. In all other cases, L* calibration is the better choice.
RGB IEC61966-2.1
sRGB is a working space for monitor output only. You find it mainly in the
areas of Internet, multi media video and office applications. The tonal
response curve cannot be described with a gamma function (although
Photoshop, for example, reports a gamma value of 2.2). In the shadows,
it resemble more an L* curve, in the mid tones and highlights it follows
the gamma 2.2 curve. In order to exactly match sRGB data, Spectra-
View Profiler is the only monitor calibration application that offers an
sRGB calibration curve for these applications.
CIECAM02
How the effective contrast ratio will be reproduced in an workflow doesn't
depends on the monitor alone. Also the lightning conditions of the room
is having a lot of influence on the effective contrast ratio of the monitor.
In a very bright en lighted room the effective contrast of the monitor
will not be the same like using the same monitor in the same room,
but without any additional light sources and closed curtains (e.g. dark
room).
52