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Contrast ratio results for Dell U2412M

Contrast ratio 764:1
Monitor model Dell U2412M
Submitted 30 May 2015 20:13 CEST, by 164.126.*.*
Camera model Canon EOS 350D DIGITAL
Processing remarks

Note: image file 1: suggested exposure time: 10.6 s (Set EV to +1.2)
Warning: Image ISO settings are not the same.

Black
Screen photo
[open image]
Luminance 0.17 cd/m2
Luminance spread 0.08 cd/m2 (2 standard deviations)
Exposure value –3.74 stops   (aim for –2 to –3)
Exposure spread 0.69 stops
Area used for calculation 0.433 x 0.487
Camera settings Exposure time: 4.5   ISO: 100   F-number: 3.5
Focal length: 31.2 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 133 cd/m2
Luminance spread 32 cd/m2 (2 standard deviations)
Exposure value –1.65 stops   (aim for –2 to –3)
Exposure spread 0.35 stops
Area used for calculation 0.433 x 0.487
Camera settings Exposure time: 1/160   ISO: 400   F-number: 3.5
Focal length: 31.2 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.