Contrast ratio of Samsung C27JG56

Contrast ratio 2090:1
Monitor model Samsung C27JG56
Submitted 01 Nov 2019 04:38 CET, by 50.34.*.*
Camera model samsung SM-G960U
Processing remarks

Note: image file 1: suggested exposure time: 1.9 s (Set EV to -1.1)

Black
Screen photo
Luminance 0.11 cd/m2
Luminance spread 0.07 cd/m2 (2 standard deviations)
Exposure value –1.42 stops   (aim for –2 to –3)
Exposure spread 0.92 stops
Area used for calculation 0.376 x 0.376
Camera settings Exposure time: 4   ISO: 400   F-number: 2.4
Focal length: 26 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 240 cd/m2
Luminance spread 23 cd/m2 (2 standard deviations)
Exposure value –1.36 stops   (aim for –2 to –3)
Exposure spread 0.14 stops
Area used for calculation 0.376 x 0.376
Camera settings Exposure time: 1/500   ISO: 400   F-number: 2.4
Focal length: 26 mm   (35 mm equivalent)
Exposure compensation: 0
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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.