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Contrast ratio results for Dell U2410

Contrast ratio 1468:1
Monitor model Dell U2410
Submitted 15 Jul 2012 16:35 CEST, by 46.246.*.*
Camera model Olympus u840S840
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 2.4 s (Set EV to +2.2)

Black
Screen photo
[open image]
Luminance 0.17 cd/m2
Luminance spread 0.04 cd/m2 (2 standard deviations)
Exposure value –4.75 stops   (aim for –2 to –3)
Exposure spread 0.34 stops
Area used for calculation 0.521 x 0.521
Camera settings Exposure time: 0.5   ISO: 400   F-number: 3.3
Focal length: 36.1 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 254 cd/m2
Luminance spread 34 cd/m2 (2 standard deviations)
Exposure value –1.55 stops   (aim for –2 to –3)
Exposure spread 0.19 stops
Area used for calculation 0.521 x 0.521
Camera settings Exposure time: 1/320   ISO: 400   F-number: 3.3
Focal length: 36.1 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.