Contrast ratio results

Contrast ratio 3608:1
Monitor model
Submitted 06 Aug 2010 16:54 CEST, by 149.5.*.*
Camera model Nikon D700
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 +9.6)

Black
Screen photo
Luminance 0.08 cd/m2
Luminance spread 0.07 cd/m2 (2 standard deviations)
Exposure value –8.07 stops   (aim for –2 to –3)
Exposure spread 1.39 stops
Area used for calculation 0.777 x 0.876
Camera settings Exposure time: 1/13   ISO: 400   F-number: 2.8
Focal length: 56 mm   (35 mm equivalent)
Exposure compensation: 4
White
Screen photo
Luminance 292 cd/m2
Luminance spread 49 cd/m2 (2 standard deviations)
Exposure value –0.88 stops   (aim for –2 to –3)
Exposure spread 0.24 stops
Area used for calculation 0.777 x 0.876
Camera settings Exposure time: 1/320   ISO: 400   F-number: 2.8
Focal length: 56 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.