Contrast ratio results for Eizo S2431

Black
Contrast ratio	10108:1
Monitor model	Eizo S2431
Submitted	02 Apr 2009 20:33 CEST, by 77.188..
Camera model	Canon EOS 30D
Processing remarks	Warning: image file 1: camera was zoomed in too much. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 176.6 s (Set EV to +2.1) Warning: image file 2: camera was zoomed in too much. Note: image file 2: suggested exposure time: 1/57 s (Set EV to -1.5)
Screen photo	[open image]
Luminance	0.03 cd/m2
Luminance spread	0.02 cd/m2 (2 standard deviations)
Exposure value	–6.64 stops (aim for –2 to –3)
Exposure spread	0.72 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 10 ISO: 100 F-number: 6.3 Focal length: 307 mm (35 mm equivalent) Exposure compensation: -2
White
Screen photo	[open image]
Luminance	343 cd/m2
Luminance spread	109 cd/m2 (2 standard deviations)
Exposure value	–0.98 stops (aim for –2 to –3)
Exposure spread	0.46 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 1/20 ISO: 100 F-number: 6.3 Focal length: 305 mm (35 mm equivalent) Exposure compensation: 0

The luminance values in cd/m2 are not very reliable, since camera sensitivities can easily differ up to 50% from their nominal value. Typically, the real luminance is 30% lower than this number. The area used for calculation is chosen such that it corresponds to a viewing angle of ±14° horizontally and ±10.5° vertically, which is equivalent to viewing the screen from a distance of about 1.5 times the diagonal size.

Unfortunately, there is a lot of variation in how cameras use EXIF settings. If photos from your camera your produce unusable results, try coming back in a few days. I review submitted pictures regularly and try to fix problems.