Contrast ratio of Dell U3011

Contrast ratio 521:1
Monitor model Dell U3011
Submitted 01 May 2020 17:25 CEST, by 83.80.*.*
Camera model Canon EOS 600D
Processing remarks


Black
Screen photo
Luminance 0.36 cd/m2
Luminance spread 0.31 cd/m2 (2 standard deviations)
Exposure value –3.27 stops   (aim for –2 to –3)
Exposure spread 1.32 stops
Area used for calculation 0.393 x 0.442
Camera settings Exposure time: 2   ISO: 400   F-number: 5.7
Focal length: 28.3 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 187 cd/m2
Luminance spread 16 cd/m2 (2 standard deviations)
Exposure value –2.25 stops   (aim for –2 to –3)
Exposure spread 0.12 stops
Area used for calculation 0.393 x 0.442
Camera settings Exposure time: 1/128   ISO: 400   F-number: 5.7
Focal length: 28.3 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.