Contrast ratio results for lg24ud58

Contrast ratio 11:1 (edge: 14:1)
Monitor model lg24ud58
Submitted 29 Aug 2018 23:48 CEST, by 108.185.*.*
Camera model samsung SM-G930V
Processing remarks

Note: image file 1: suggested exposure time: 0.5 s (Set EV to +1.0)
Warning: image file 2: Overexposed. Please decrease the shutter time.
Note: image file 2: suggested exposure time: 1/23 s (Set EV to -2.5)
Note: image file 3: suggested exposure time: 0.6 s (Set EV to +1.3)

Black
Screen photo
Luminance 0.22 cd/m2
Luminance spread 0.08 cd/m2 (2 standard deviations)
Exposure value –3.51 stops   (aim for –2 to –3)
Exposure spread 0.56 stops
Area used for calculation 0.345 x 0.46
Camera settings Exposure time: 1/4   ISO: 400   F-number: 1.7
Focal length: 26 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 2.46 cd/m2
Luminance spread 0 cd/m2 (2 standard deviations)
Exposure value –0.01 stops   (aim for –2 to –3)
Exposure spread -0 stops
Area used for calculation 0.345 x 0.46
Camera settings Exposure time: 1/4   ISO: 400   F-number: 1.7
Focal length: 26 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
Luminance 0.18 cd/m2
Luminance spread 0.05 cd/m2 (2 standard deviations)
Exposure value –3.78 stops   (aim for –2 to –3)
Exposure spread 0.44 stops
Area used for calculation 0.345 x 0.46
Camera settings Exposure time: 1/4   ISO: 400   F-number: 1.7
Focal length: 26 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.