Contrast ratio results

Contrast ratio 209:1
Monitor model
Submitted 15 May 2013 02:11 CEST, by 5.11.*.*
Camera model Nikon D5000
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 3.7 s (Set EV to +5.2)
Warning: image file 2: Overexposed. Please decrease the shutter time.
Note: image file 2: suggested exposure time: 1/57 s (Set EV to -2.5)

Black
Screen photo
Luminance 0.16 cd/m2
Luminance spread 0.17 cd/m2 (2 standard deviations)
Exposure value –7.71 stops   (aim for –2 to –3)
Exposure spread 1.66 stops
Area used for calculation 0.355 x 0.489
Camera settings Exposure time: 1/10   ISO: 400   F-number: 4
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 34 cd/m2
Luminance spread 0 cd/m2 (2 standard deviations)
Exposure value –-0 stops   (aim for –2 to –3)
Exposure spread 0 stops
Area used for calculation 0.357 x 0.482
Camera settings Exposure time: 1/10   ISO: 400   F-number: 4
Focal length: 27 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.