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Contrast ratio results for ASUS VB178

Contrast ratio 628:1
Monitor model ASUS VB178
Submitted 27 Sep 2012 21:34 CEST, by 216.248.*.*
Camera model Kodak Z1285 ZOOM DIGITAL CAMERA
Processing remarks

Warning: image file 1: automatic white balance can cause inaccuracies.
Warning: image file 2: automatic white balance can cause inaccuracies.

Black
Screen photo
[open image]
Luminance 0.43 cd/m2
Luminance spread 0.16 cd/m2 (2 standard deviations)
Exposure value –1.95 stops   (aim for –2 to –3)
Exposure spread 0.56 stops
Area used for calculation 0.5 x 0.563
Camera settings Exposure time: 1   ISO: 400   F-number: 2.8
Focal length: 36 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 272 cd/m2
Luminance spread 43 cd/m2 (2 standard deviations)
Exposure value –1.32 stops   (aim for –2 to –3)
Exposure spread 0.23 stops
Area used for calculation 0.5 x 0.563
Camera settings Exposure time: 1/406   ISO: 400   F-number: 2.8
Focal length: 36 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.