Contrast ratio results

Contrast ratio 1287:1
Monitor model
Submitted 07 Jul 2020 17:17 CEST, by 88.121.*.*
Camera model samsung SM-A202F
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 1.8 s (Set EV to +7.0)

Black
Screen photo
Luminance 0.07 cd/m2
Luminance spread 0.04 cd/m2 (2 standard deviations)
Exposure value –7.47 stops   (aim for –2 to –3)
Exposure spread 0.76 stops
Area used for calculation 0.39 x 0.39
Camera settings Exposure time: 1/17   ISO: 400   F-number: 1.9
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 2
White
Screen photo
Luminance 95 cd/m2
Luminance spread 11 cd/m2 (2 standard deviations)
Exposure value –1.91 stops   (aim for –2 to –3)
Exposure spread 0.17 stops
Area used for calculation 0.39 x 0.39
Camera settings Exposure time: 1/465   ISO: 400   F-number: 1.9
Focal length: 27 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.