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Contrast ratio of LG 24MP68

Contrast ratio 896:1 (edge: 988:1)
Monitor model LG 24MP68
Submitted 24 Mar 2018 07:29 CET, by 112.202.*.*
Camera model SAMSUNG WB150 / WB150F / WB152 / WB152F
Processing remarks

Note: image file 1: suggested exposure time: 2.4 s (Set EV to -1.3)
Note: image file 3: suggested exposure time: 2.6 s (Set EV to -1.1)

Black
Screen photo
[open image]
Luminance 0.16 cd/m2
Luminance spread 0.03 cd/m2 (2 standard deviations)
Exposure value –1.24 stops   (aim for –2 to –3)
Exposure spread 0.3 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 5.7   ISO: 400   F-number: 3.2
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 145 cd/m2
Luminance spread 19 cd/m2 (2 standard deviations)
Exposure value –2.45 stops   (aim for –2 to –3)
Exposure spread 0.19 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 1/362   ISO: 400   F-number: 3.2
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.15 cd/m2
Luminance spread 0.04 cd/m2 (2 standard deviations)
Exposure value –1.39 stops   (aim for –2 to –3)
Exposure spread 0.38 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 5.7   ISO: 400   F-number: 3.2
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.