Contrast ratio results

Contrast ratio 979:1
Monitor model
Submitted 03 Jul 2019 03:19 CEST, by 188.238.*.*
Camera model Nikon D7000
Processing remarks


Black
Screen photo
Luminance 0.24 cd/m2
Luminance spread 0.09 cd/m2 (2 standard deviations)
Exposure value –2.87 stops   (aim for –2 to –3)
Exposure spread 0.57 stops
Area used for calculation 0.696 x 0.894
Camera settings Exposure time: 2.5   ISO: 400   F-number: 4.5
Focal length: 52 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 232 cd/m2
Luminance spread 73 cd/m2 (2 standard deviations)
Exposure value –2.22 stops   (aim for –2 to –3)
Exposure spread 0.46 stops
Area used for calculation 0.695 x 0.899
Camera settings Exposure time: 1/250   ISO: 400   F-number: 4.5
Focal length: 52 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.