Contrast ratio results for Dell 2209WA

Contrast ratio 609:1
Monitor model Dell 2209WA
Submitted 07 Dec 2009 21:48 CET, by 87.127.*.*
Camera model Olympus u1200S1200
Processing remarks

Warning: image file 1: could not determine angle of view; assuming 38 mm lens (35 mm equivalent).
Warning: image file 1: automatic white balance can cause inaccuracies.
image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Warning: image file 2: could not determine angle of view; assuming 38 mm lens (35 mm equivalent).
Warning: image file 2: automatic white balance can cause inaccuracies.
Note: image file 2: suggested exposure time: 1/420 s (Set EV to -1.8)
Warning: Image ISO settings are not the same.

Black
Screen photo
Luminance 0.17 cd/m2
Luminance spread 0.11 cd/m2 (2 standard deviations)
Exposure value –3.34 stops   (aim for –2 to –3)
Exposure spread 0.99 stops
Area used for calculation 0.528 x 0.528
Camera settings Exposure time: 0.5   ISO: 800   F-number: 2.8
Focal length: 0 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 100 cd/m2
Luminance spread 11 cd/m2 (2 standard deviations)
Exposure value –0.74 stops   (aim for –2 to –3)
Exposure spread 0.15 stops
Area used for calculation 0.528 x 0.528
Camera settings Exposure time: 1/125   ISO: 500   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.