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Contrast ratio of LG 27MP67 3rd test

Contrast ratio 761:1
Monitor model LG 27MP67 3rd test
Submitted 02 Jan 2016 17:47 CET, by 122.105.*.*
Camera model Sony ILCE-7
Processing remarks


Black
Screen photo
[open image]
Luminance 0.25 cd/m2
Luminance spread 0.12 cd/m2 (2 standard deviations)
Exposure value –1.75 stops   (aim for –2 to –3)
Exposure spread 0.71 stops
Area used for calculation 0.333 x 0.375
Camera settings Exposure time: 2   ISO: 800   F-number: 4
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 193 cd/m2
Luminance spread 36 cd/m2 (2 standard deviations)
Exposure value –1.5 stops   (aim for –2 to –3)
Exposure spread 0.27 stops
Area used for calculation 0.333 x 0.375
Camera settings Exposure time: 1/320   ISO: 800   F-number: 4
Focal length: 24 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.