Contrast ratio results for Acer AL 1916s

Contrast ratio 509:1
Monitor model Acer AL 1916s
Submitted 02 May 2011 17:46 CEST, by 94.180.*.*
Camera model Nikon COOLPIX L16
Processing remarks

image file 3: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Warning: image file 3: Overexposed. Please decrease the shutter time.
Warning: Image ISO settings are not the same.
Warning: image file 3 is too bright to be a dark photo. Maybe you mixed up the files?

Black
Screen photo
Luminance 0.32 cd/m2
Luminance spread 0.02 cd/m2 (2 standard deviations)
Exposure value –1.91 stops   (aim for –2 to –3)
Exposure spread 0.09 stops
Area used for calculation 0.506 x 0.506
Camera settings Exposure time: 0.7   ISO: 800   F-number: 2.8
Focal length: 35 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 162 cd/m2
Luminance spread 22 cd/m2 (2 standard deviations)
Exposure value –1.83 stops   (aim for –2 to –3)
Exposure spread 0.19 stops
Area used for calculation 0.506 x 0.506
Camera settings Exposure time: 1/60   ISO: 70   F-number: 2.8
Focal length: 35 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
Luminance 18 cd/m2
Luminance spread 62 cd/m2 (2 standard deviations)
Exposure value –2.08 stops   (aim for –2 to –3)
Exposure spread 4.25 stops
Area used for calculation 0.506 x 0.506
Camera settings Exposure time: 1/45   ISO: 400   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.