Contrast ratio results for ASUS

Contrast ratio 1120:1
Monitor model ASUS
Submitted 02 Jun 2014 01:20 CEST, by 76.170.*.*
Camera model Canon EOS 20D
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 5.1 s (Set EV to +4.1)

Black
Screen photo
Luminance 0.09 cd/m2
Luminance spread 0.21 cd/m2 (2 standard deviations)
Exposure value –6.57 stops   (aim for –2 to –3)
Exposure spread 4.25 stops
Area used for calculation 0.607 x 0.683
Camera settings Exposure time: 0.3   ISO: 400   F-number: 3.5
Focal length: 43.7 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 103 cd/m2
Luminance spread 16 cd/m2 (2 standard deviations)
Exposure value –2.03 stops   (aim for –2 to –3)
Exposure spread 0.23 stops
Area used for calculation 0.607 x 0.683
Camera settings Exposure time: 1/160   ISO: 400   F-number: 3.5
Focal length: 43.7 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.