O ColorMunki Photo é um
spectrophotometer.
Do
http://www.colorwiki.com/wiki/Profiling_Devices_for_Monitors Spectrophotometers vs. Colorimeters
Calibration devices fall into two main camps: Spectrophotometers and colorimeters.
A spectrophotometer (i1Pro, ColorMunki) is designed to measure light energy at various frequencies
across the entire spectrum of visible light. Its measurement returns data from roughly 400nm (nanometers)
to 700nm or so. Basically, it measures many bands of light at once. These different bands of spectral
data are brought together by the profiling software to identify individual colors. Spectrophotometers
are able to measure reflective light (off of a page) as well as emissive light (off of a monitor) which
is why many of these devices offer printer profiling abilities also. So this can be another point to
consider when buying a device to calibrate your monitor: If you are interested in making your own
printer profiles as well, consider a device that will do both.
A colorimeter (DTP-94, i1 Display 2, Spyder 2, Spyder 3) is a simpler device that makes use of filters
to measure the intensity of red, green and blue. Measuring these primaries is roughly similar to how
our eyes work, too. The filters reduce a broad range of light wavelengths into a few measurement values.
Therefore, the accuracy and quality of these instruments depend a lot on the filters used - how durable
they are over time, what colors they are specifically created to measure, and so forth.
Because spectrophotometers read a large number of bands, instead of just a few, they are considered
to be more accurate than colorimeters. (They are also more expensive.) However, there is a major
drawback. Because they read more bands of light, they will tend to introduce more noise into the mix.
This is not much of a problem until you get down to measuring things like shadow detail and blacks.
Imagine you're a spectrophotometer, dangling off the front of a display and you're asked to measure
a black patch. Well, there won't be much of anything there to read, but you give it your best.
You gather all the data from some 36 bands of wavelengths and because of digital noise and sensor
dust, that will add to your report of how bright black is. For this reason,
spectrophotometers tend
to not measure shadow detail as dark as most colorimeters do. For example, the Monaco Optix(DTP-94)
is famous for getting great shadow detail. It even has some noise-reduction circuitry built into it.
O X-Rite i1Display Pro e o ColorMunki Display são os melhores calibradores.
http://forum.luminous-landscape.com/index.php?topic=110118.msg906300#msg906300X-Rite ColorMunki Display é 5 vezes mais lento que o i1Display Pro e castrado para só
funcionar com o software da X-rite e Argyll(pq o autor hackou o driver).
A X-Rite não permite que o ColorMunki Display funcione com o
software(DUCCS) para calibrar
monitor Dell UltraSharp com PremierColor.