Contrast ratio results

Contrast ratio 641:1
Monitor model
Submitted 22 Jan 2017 12:37 CET, by 192.157.*.*
Camera model Sony ILCE-6000
Processing remarks


Black
Screen photo
Luminance 0.19 cd/m2
Luminance spread 0.06 cd/m2 (2 standard deviations)
Exposure value –2.17 stops   (aim for –2 to –3)
Exposure spread 0.49 stops
Area used for calculation 0.874 x 0.986
Camera settings Exposure time: 4   ISO: 800   F-number: 5.6
Focal length: 63 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 119 cd/m2
Luminance spread 46 cd/m2 (2 standard deviations)
Exposure value –3.17 stops   (aim for –2 to –3)
Exposure spread 0.57 stops
Area used for calculation 0.874 x 0.986
Camera settings Exposure time: 1/320   ISO: 800   F-number: 5.6
Focal length: 63 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.