Contrast ratio results for ho probook

Contrast ratio 156:1
Monitor model ho probook
Submitted 03 Jun 2014 02:33 CEST, by 41.130.*.*
Camera model Nikon D7100
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 0.3 s (Set EV to +1.7)
Note: image file 2: suggested exposure time: 1/470 s (Set EV to -5.5)

Black
Screen photo
Luminance 1.41 cd/m2
Luminance spread 2.17 cd/m2 (2 standard deviations)
Exposure value –8.24 stops   (aim for –2 to –3)
Exposure spread 2.93 stops
Area used for calculation 0.375 x 0.421
Camera settings Exposure time: 1/160   ISO: 800   F-number: 5
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: -4
White
Screen photo
Luminance 221 cd/m2
Luminance spread 22 cd/m2 (2 standard deviations)
Exposure value –0.95 stops   (aim for –2 to –3)
Exposure spread 0.15 stops
Area used for calculation 0.375 x 0.421
Camera settings Exposure time: 1/160   ISO: 800   F-number: 5
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: -4

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.