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Contrast ratio results for ASUS VW195DL

Contrast ratio 361:1 (edge: 357:1)
Monitor model ASUS VW195DL
Submitted 21 Oct 2012 20:08 CEST, by 188.73.*.*
Camera model Nikon D5000
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 2.1 s (Set EV to +4.4)
Warning: image file 3: camera was zoomed in too much.
Warning: image file 3: Underexposed. Please increase the shutter time.
Note: image file 3: suggested exposure time: 2.1 s (Set EV to +4.4)

Black
Screen photo
[open image]
Luminance 0.23 cd/m2
Luminance spread 0.13 cd/m2 (2 standard deviations)
Exposure value –10.88 stops   (aim for –2 to –3)
Exposure spread 0.84 stops
Area used for calculation 0.707 x 0.799
Camera settings Exposure time: 1/160   ISO: 800   F-number: 5
Focal length: 51 mm   (35 mm equivalent)
Exposure compensation: -4
White
Screen photo
[open image]
Luminance 82 cd/m2
Luminance spread 35 cd/m2 (2 standard deviations)
Exposure value –2.38 stops   (aim for –2 to –3)
Exposure spread 0.62 stops
Area used for calculation 0.707 x 0.799
Camera settings Exposure time: 1/160   ISO: 800   F-number: 5
Focal length: 51 mm   (35 mm equivalent)
Exposure compensation: -4
Black at screen edge
Screen photo
[open image]
Luminance 0.23 cd/m2
Luminance spread 0.13 cd/m2 (2 standard deviations)
Exposure value –10.86 stops   (aim for –2 to –3)
Exposure spread 0.83 stops
Area used for calculation 1 x 0.498
Camera settings Exposure time: 1/160   ISO: 800   F-number: 5
Focal length: 51 mm   (35 mm equivalent)
Exposure compensation: -4

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.