Contrast ratio results

Contrast ratio 1042:1
Monitor model
Submitted 22 Feb 2013 22:20 CET, by 24.69.*.*
Camera model Nikon D80
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 5.3 s (Set EV to +3.4)
Note: image file 2: suggested exposure time: 1/200 s (Set EV to +1.4)

Black
Screen photo
Luminance 0.1 cd/m2
Luminance spread 0.05 cd/m2 (2 standard deviations)
Exposure value –5.91 stops   (aim for –2 to –3)
Exposure spread 0.7 stops
Area used for calculation 0.375 x 0.421
Camera settings Exposure time: 0.5   ISO: 400   F-number: 3.8
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 107 cd/m2
Luminance spread 19 cd/m2 (2 standard deviations)
Exposure value –3.85 stops   (aim for –2 to –3)
Exposure spread 0.26 stops
Area used for calculation 0.375 x 0.421
Camera settings Exposure time: 1/500   ISO: 400   F-number: 3.8
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.