Contrast ratio results for Dell 2209WA

Contrast ratio 2304:1
Monitor model Dell 2209WA
Submitted 19 Jun 2009 19:44 CEST, by 220.255.*.*
Camera model Nikon D90
Processing remarks

Warning: image file 1: automatic white balance can cause inaccuracies.
Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 14.0 s (Set EV to +5.5)
Warning: image file 2: automatic white balance can cause inaccuracies.
Note: image file 2: suggested exposure time: 1/160 s (Set EV to +1.3)

Black
Screen photo
Luminance 0.03 cd/m2
Luminance spread 0.02 cd/m2 (2 standard deviations)
Exposure value –8.05 stops   (aim for –2 to –3)
Exposure spread 0.98 stops
Area used for calculation 0.333 x 0.376
Camera settings Exposure time: 0.3   ISO: 400   F-number: 3.5
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 76 cd/m2
Luminance spread 21 cd/m2 (2 standard deviations)
Exposure value –3.78 stops   (aim for –2 to –3)
Exposure spread 0.41 stops
Area used for calculation 0.333 x 0.376
Camera settings Exposure time: 1/400   ISO: 400   F-number: 3.5
Focal length: 24 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.