Contrast ratio results

Contrast ratio 1362:1
Monitor model
Submitted 08 Nov 2019 22:52 CET, by 64.229.*.*
Camera model samsung SM-G960W
Processing remarks

Note: image file 1: suggested exposure time: 1.9 s (Set EV to -3.1)

Black
Screen photo
Luminance 0.12 cd/m2
Luminance spread 0.03 cd/m2 (2 standard deviations)
Exposure value –1.41 stops   (aim for –2 to –3)
Exposure spread 0.34 stops
Area used for calculation 0.345 x 0.46
Camera settings Exposure time: 4   ISO: 400   F-number: 2.4
Focal length: 26 mm   (35 mm equivalent)
Exposure compensation: -2
White
Screen photo
Luminance 158 cd/m2
Luminance spread 30 cd/m2 (2 standard deviations)
Exposure value –1.45 stops   (aim for –2 to –3)
Exposure spread 0.27 stops
Area used for calculation 0.345 x 0.46
Camera settings Exposure time: 1/350   ISO: 400   F-number: 2.4
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.