Contrast ratio results

Contrast ratio 289:1
Monitor model
Submitted 08 Oct 2019 16:19 CEST, by 179.218.*.*
Camera model Sony ILCE-6000
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 7.5 s (Set EV to +4.9)
Warning: image file 2: Underexposed. Please increase the shutter time.
Note: image file 2: suggested exposure time: 1/38 s (Set EV to +2.1)

Black
Screen photo
Luminance 0.16 cd/m2
Luminance spread 0.38 cd/m2 (2 standard deviations)
Exposure value –7.41 stops   (aim for –2 to –3)
Exposure spread 4.25 stops
Area used for calculation 0.318 x 0.425
Camera settings Exposure time: 1/4   ISO: 400   F-number: 5.6
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 46 cd/m2
Luminance spread 22 cd/m2 (2 standard deviations)
Exposure value –4.56 stops   (aim for –2 to –3)
Exposure spread 0.72 stops
Area used for calculation 0.318 x 0.424
Camera settings Exposure time: 1/160   ISO: 400   F-number: 5.6
Focal length: 24 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.