Contrast ratio results

Contrast ratio 429:1
Monitor model
Submitted 31 Aug 2015 16:29 CEST, by 89.217.*.*
Camera model Sony ILCE-5100
Processing remarks


Black
Screen photo
Luminance 0.22 cd/m2
Luminance spread 0.07 cd/m2 (2 standard deviations)
Exposure value –2.64 stops   (aim for –2 to –3)
Exposure spread 0.48 stops
Area used for calculation 0.888 x 1
Camera settings Exposure time: 2.5   ISO: 400   F-number: 4
Focal length: 64 mm   (35 mm equivalent)
Exposure compensation: 1.3
White
Screen photo
Luminance 94 cd/m2
Luminance spread 32 cd/m2 (2 standard deviations)
Exposure value –2.86 stops   (aim for –2 to –3)
Exposure spread 0.5 stops
Area used for calculation 0.888 x 1
Camera settings Exposure time: 1/200   ISO: 400   F-number: 4
Focal length: 64 mm   (35 mm equivalent)
Exposure compensation: 1.3

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.