Contrast ratio results

Contrast ratio 60:1
Monitor model
Submitted 17 Sep 2014 04:17 CEST, by 179.177.*.*
Camera model Canon EOS REBEL T3
Processing remarks

Warning: image file 1: camera was zoomed in too much.
Note: image file 1: suggested exposure time: 0.6 s (Set EV to +1.2)
Warning: image file 2: camera was zoomed in too much.
Warning: image file 2: Underexposed. Please increase the shutter time.
Note: image file 2: suggested exposure time: 1/110 s (Set EV to +1.9)

Black
Screen photo
Luminance 2.16 cd/m2
Luminance spread 0.77 cd/m2 (2 standard deviations)
Exposure value –3.68 stops   (aim for –2 to –3)
Exposure spread 0.52 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 1/4   ISO: 400   F-number: 5.7
Focal length: 86.5 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 130 cd/m2
Luminance spread 27 cd/m2 (2 standard deviations)
Exposure value –4.4 stops   (aim for –2 to –3)
Exposure spread 0.3 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 1/395   ISO: 400   F-number: 5.7
Focal length: 86.5 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.