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Contrast ratio of Dell U2410

Contrast ratio 650:1 (edge: 839:1)
Monitor model Dell U2410
Submitted 24 Nov 2012 17:02 CET, by 188.221.*.*
Camera model Canon EOS 7D
Processing remarks


Black
Screen photo
[open image]
Luminance 0.25 cd/m2
Luminance spread 0.05 cd/m2 (2 standard deviations)
Exposure value –2.77 stops   (aim for –2 to –3)
Exposure spread 0.31 stops
Area used for calculation 0.371 x 0.417
Camera settings Exposure time: 1   ISO: 400   F-number: 2.8
Focal length: 26.7 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 160 cd/m2
Luminance spread 38 cd/m2 (2 standard deviations)
Exposure value –2.05 stops   (aim for –2 to –3)
Exposure spread 0.34 stops
Area used for calculation 0.371 x 0.417
Camera settings Exposure time: 1/395   ISO: 400   F-number: 2.8
Focal length: 26.7 mm   (35 mm equivalent)
Exposure compensation: 2
Black at screen edge
Screen photo
[open image]
Luminance 0.19 cd/m2
Luminance spread 0.03 cd/m2 (2 standard deviations)
Exposure value –2.76 stops   (aim for –2 to –3)
Exposure spread 0.25 stops
Area used for calculation 0.371 x 0.417
Camera settings Exposure time: 1.3   ISO: 400   F-number: 2.8
Focal length: 26.7 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.