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Contrast ratio of ASUS N56VB

Contrast ratio 568:1 (edge: 584:1)
Monitor model ASUS N56VB
Submitted 16 Nov 2013 07:08 CET, by 139.195.*.*
Camera model Nikon D3100
Processing remarks


Black
Screen photo
[open image]
Luminance 0.52 cd/m2
Luminance spread 0.11 cd/m2 (2 standard deviations)
Exposure value –2.32 stops   (aim for –2 to –3)
Exposure spread 0.29 stops
Area used for calculation 0.375 x 0.422
Camera settings Exposure time: 1   ISO: 400   F-number: 3.5
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 2
White
Screen photo
[open image]
Luminance 297 cd/m2
Luminance spread 35 cd/m2 (2 standard deviations)
Exposure value –1.82 stops   (aim for –2 to –3)
Exposure spread 0.17 stops
Area used for calculation 0.375 x 0.422
Camera settings Exposure time: 1/400   ISO: 400   F-number: 3.5
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.51 cd/m2
Luminance spread 0.09 cd/m2 (2 standard deviations)
Exposure value –2.69 stops   (aim for –2 to –3)
Exposure spread 0.27 stops
Area used for calculation 0.375 x 0.422
Camera settings Exposure time: 0.8   ISO: 400   F-number: 3.5
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 7

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.