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Contrast ratio results for Acer AL 1916s

Contrast ratio 2.52757e+09:1
Monitor model Acer AL 1916s
Submitted 02 May 2011 16:48 CEST, by 94.180.*.*
Camera model Nikon COOLPIX L16
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 26988081.3 s (Set EV to +30.6)

Black
Screen photo
[open image]
Luminance 0 cd/m2
Luminance spread 0 cd/m2 (2 standard deviations)
Exposure value –33.09 stops   (aim for –2 to –3)
Exposure spread 4.25 stops
Area used for calculation 0.506 x 0.506
Camera settings Exposure time: 1/60   ISO: 77   F-number: 2.8
Focal length: 35 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 144 cd/m2
Luminance spread 24 cd/m2 (2 standard deviations)
Exposure value –1.86 stops   (aim for –2 to –3)
Exposure spread 0.25 stops
Area used for calculation 0.506 x 0.506
Camera settings Exposure time: 1/60   ISO: 77   F-number: 2.8
Focal length: 35 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.