Contrast ratio results for DELL 2209WA

Contrast ratio 50302:1 (edge: 14672:1)
Monitor model DELL 2209WA
Submitted 08 Jun 2009 02:30 CEST, by 186.18.*.*
Camera model Sony DSC-S600
Processing remarks

Warning: image file 1: could not determine angle of view; assuming 38 mm lens (35 mm equivalent).
Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 116.2 s (Set EV to +11.8)
Warning: image file 2: could not determine angle of view; assuming 38 mm lens (35 mm equivalent).
Note: image file 2: suggested exposure time: 1/430 s (Set EV to -1.1)
Warning: image file 3: could not determine angle of view; assuming 38 mm lens (35 mm equivalent).
Warning: image file 3: Underexposed. Please increase the shutter time.
Note: image file 3: suggested exposure time: 33.9 s (Set EV to +10.0)

Black
Screen photo
Luminance 0 cd/m2
Luminance spread 0 cd/m2 (2 standard deviations)
Exposure value –14.27 stops   (aim for –2 to –3)
Exposure spread 3.81 stops
Area used for calculation 0.528 x 0.528
Camera settings Exposure time: 1/30   ISO: 400   F-number: 2.8
Focal length: 0 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 128 cd/m2
Luminance spread 13 cd/m2 (2 standard deviations)
Exposure value –1.39 stops   (aim for –2 to –3)
Exposure spread 0.15 stops
Area used for calculation 0.528 x 0.528
Camera settings Exposure time: 1/200   ISO: 400   F-number: 2.8
Focal length: 0 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
Luminance 0.01 cd/m2
Luminance spread 0.02 cd/m2 (2 standard deviations)
Exposure value –12.49 stops   (aim for –2 to –3)
Exposure spread 4.25 stops
Area used for calculation 0.528 x 0.528
Camera settings Exposure time: 1/30   ISO: 400   F-number: 2.8
Focal length: 0 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.