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Contrast ratio of LG 27GP850-B

Contrast ratio 1135:1
Monitor model LG 27GP850-B
Submitted 28 Oct 2023 18:20 CEST, by 95.172.*.*
Camera model Xiaomi M2101K7AG
Processing remarks


Black
Screen photo
[open image]
Luminance 0.05 cd/m2
Luminance spread 0.02 cd/m2 (2 standard deviations)
Exposure value –2.12 stops   (aim for –2 to –3)
Exposure spread 0.63 stops
Area used for calculation 0.376 x 0.376
Camera settings Exposure time: 3.2   ISO: 400   F-number: 1.8
Focal length: 26 mm   (35 mm equivalent)
Exposure compensation: 2
White
Screen photo
[open image]
Luminance 56 cd/m2
Luminance spread 1 cd/m2 (2 standard deviations)
Exposure value –2.3 stops   (aim for –2 to –3)
Exposure spread 0.04 stops
Area used for calculation 0.376 x 0.376
Camera settings Exposure time: 1/400   ISO: 400   F-number: 1.8
Focal length: 26 mm   (35 mm equivalent)
Exposure compensation: 2

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.