Contrast ratio results

Contrast ratio 3659:1
Monitor model
Submitted 07 Nov 2017 06:13 CET, by 73.241.*.*
Camera model Nikon D80
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 17.6 s (Set EV to +1.1)

Black
Screen photo
Luminance 0.03 cd/m2
Luminance spread 0.04 cd/m2 (2 standard deviations)
Exposure value –7.64 stops   (aim for –2 to –3)
Exposure spread 2.64 stops
Area used for calculation 0.459 x 0.514
Camera settings Exposure time: 0.5   ISO: 400   F-number: 3.8
Focal length: 33 mm   (35 mm equivalent)
Exposure compensation: -4
White
Screen photo
Luminance 114 cd/m2
Luminance spread 38 cd/m2 (2 standard deviations)
Exposure value –3.44 stops   (aim for –2 to –3)
Exposure spread 0.49 stops
Area used for calculation 0.459 x 0.514
Camera settings Exposure time: 1/400   ISO: 400   F-number: 3.8
Focal length: 33 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.