Contrast ratio  0:1 

Monitor model  
Submitted  20 Jun 2015 06:57 CEST, by 50.151.*.* 
Camera model  
Processing remarks  Warning: image file 1: could not determine angle of view; assuming 38 mm lens (35 mm equivalent). 
Black  
Screen photo 

Luminance  cd/m2 
Luminance spread  cd/m2 (2 standard deviations) 
Exposure value  – stops (aim for –2 to –3) 
Exposure spread  stops 
Area used for calculation  x 
Camera settings  Exposure time: ISO: Fnumber: Focal length: mm (35 mm equivalent) Exposure compensation: 
White  
Screen photo 

Luminance  cd/m2 
Luminance spread  cd/m2 (2 standard deviations) 
Exposure value  – stops (aim for –2 to –3) 
Exposure spread  stops 
Area used for calculation  x 
Camera settings  Exposure time: ISO: Fnumber: Focal length: mm (35 mm equivalent) Exposure compensation: 
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.