Contrast ratio of lg

Contrast ratio 896:1
Monitor model lg
Submitted 25 Dec 2016 08:50 CET, by 68.5.*.*
Camera model Canon EOS REBEL SL1
Processing remarks


Black
Screen photo
Luminance 0.43 cd/m2
Luminance spread 0.12 cd/m2 (2 standard deviations)
Exposure value –2.73 stops   (aim for –2 to –3)
Exposure spread 0.42 stops
Area used for calculation 0.771 x 0.867
Camera settings Exposure time: 1.6   ISO: 400   F-number: 4.6
Focal length: 55.5 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 381 cd/m2
Luminance spread 91 cd/m2 (2 standard deviations)
Exposure value –1.98 stops   (aim for –2 to –3)
Exposure spread 0.35 stops
Area used for calculation 0.771 x 0.867
Camera settings Exposure time: 1/332   ISO: 400   F-number: 4.6
Focal length: 55.5 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.