Contrast ratio results for nec 20wgx2 pro

Contrast ratio 1100:1
Monitor model nec 20wgx2 pro
Submitted 16 Jul 2009 22:14 CEST, by 85.202.*.*
Camera model Canon PowerShot G7
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 1.9 s (Set EV to +2.0)

Black
Screen photo
Luminance 0.23 cd/m2
Luminance spread 0.07 cd/m2 (2 standard deviations)
Exposure value –4.46 stops   (aim for –2 to –3)
Exposure spread 0.43 stops
Area used for calculation 0.495 x 0.495
Camera settings Exposure time: 0.5   ISO: 408   F-number: 3.5
Focal length: 34.3 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 257 cd/m2
Luminance spread 16 cd/m2 (2 standard deviations)
Exposure value –1.67 stops   (aim for –2 to –3)
Exposure spread 0.09 stops
Area used for calculation 0.495 x 0.495
Camera settings Exposure time: 1/318   ISO: 408   F-number: 3.5
Focal length: 34.3 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.