Contrast ratio results

Contrast ratio 1053:1
Monitor model
Submitted 07 Sep 2019 05:32 CEST, by 47.197.*.*
Camera model Sony ILCE-6500
Processing remarks

Warning: image file 1: automatic white balance can cause inaccuracies.
Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 29.9 s (Set EV to +4.9)
Warning: image file 2: automatic white balance can cause inaccuracies.

Black
Screen photo
Luminance 0.08 cd/m2
Luminance spread 0.07 cd/m2 (2 standard deviations)
Exposure value –7.4 stops   (aim for –2 to –3)
Exposure spread 1.25 stops
Area used for calculation 0.625 x 0.703
Camera settings Exposure time: 1   ISO: 100   F-number: 4
Focal length: 45 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 85 cd/m2
Luminance spread 13 cd/m2 (2 standard deviations)
Exposure value –3.27 stops   (aim for –2 to –3)
Exposure spread 0.22 stops
Area used for calculation 0.625 x 0.703
Camera settings Exposure time: 1/60   ISO: 100   F-number: 4
Focal length: 45 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.