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Contrast ratio results for Hanns-g/HG281D

Contrast ratio 422:1
Monitor model Hanns-g/HG281D
Submitted 21 Feb 2008 05:51 CET, by 75.166.*.*
Camera model Canon PowerShot A560
Processing remarks

Warning: image file 2: Overexposed. Please decrease the shutter time.
Note: image file 2: suggested exposure time: 1/300 s (Set EV to -0.3)

Black
Screen photo
[open image]
Luminance 0.18 cd/m2
Luminance spread 0.06 cd/m2 (2 standard deviations)
Exposure value –3 stops   (aim for –2 to –3)
Exposure spread 0.48 stops
Area used for calculation 0.5 x 0.5
Camera settings Exposure time: 1   ISO: 400   F-number: 2.6
Focal length: 34.3 mm   (35 mm equivalent)
Exposure compensation: 2
White
Screen photo
[open image]
Luminance 76 cd/m2
Luminance spread 4 cd/m2 (2 standard deviations)
Exposure value –0.18 stops   (aim for –2 to –3)
Exposure spread 0.08 stops
Area used for calculation 0.5 x 0.5
Camera settings Exposure time: 1/60   ISO: 400   F-number: 2.6
Focal length: 34.3 mm   (35 mm equivalent)
Exposure compensation: 2

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.