Contrast ratio of LG E2242

Contrast ratio 230:1
Monitor model LG E2242
Submitted 02 Oct 2012 20:20 CEST, by 89.212.*.*
Camera model Canon EOS 30D
Processing remarks


Black
Screen photo
Luminance 1.22 cd/m2
Luminance spread 1.64 cd/m2 (2 standard deviations)
Exposure value –2.1 stops   (aim for –2 to –3)
Exposure spread 2.36 stops
Area used for calculation 0.39 x 0.439
Camera settings Exposure time: 0.5   ISO: 400   F-number: 3.5
Focal length: 28.1 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 281 cd/m2
Luminance spread 55 cd/m2 (2 standard deviations)
Exposure value –1.9 stops   (aim for –2 to –3)
Exposure spread 0.28 stops
Area used for calculation 0.39 x 0.439
Camera settings Exposure time: 1/400   ISO: 400   F-number: 3.5
Focal length: 28.1 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.