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Contrast ratio results for LG 22 test bright 46

Contrast ratio 388:1
Monitor model LG 22 test bright 46
Submitted 05 May 2017 20:35 CEST, by 82.209.*.*
Camera model Nikon COOLPIX L21
Processing remarks

Warning: Image ISO settings are not the same.

Black
Screen photo
[open image]
Luminance 0.07 cd/m2
Luminance spread 0.03 cd/m2 (2 standard deviations)
Exposure value –2.8 stops   (aim for –2 to –3)
Exposure spread 0.49 stops
Area used for calculation 0.592 x 0.592
Camera settings Exposure time: 1   ISO: 1600   F-number: 3.1
Focal length: 41 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 29 cd/m2
Luminance spread 9 cd/m2 (2 standard deviations)
Exposure value –1.78 stops   (aim for –2 to –3)
Exposure spread 0.47 stops
Area used for calculation 0.592 x 0.592
Camera settings Exposure time: 1/30   ISO: 250   F-number: 3.1
Focal length: 41 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.