Contrast ratio results for samsung

Contrast ratio 100:1 (edge: 60:1)
Monitor model samsung
Submitted 14 Dec 2017 14:24 CET, by 77.65.*.*
Camera model Canon EOS 700D
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 0.4 s (Set EV to +2.0)

Black
Screen photo
Luminance 1.19 cd/m2
Luminance spread 3.09 cd/m2 (2 standard deviations)
Exposure value –4.46 stops   (aim for –2 to –3)
Exposure spread 4.25 stops
Area used for calculation 0.396 x 0.445
Camera settings Exposure time: 1/10   ISO: 400   F-number: 3.5
Focal length: 28.5 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 119 cd/m2
Luminance spread 65 cd/m2 (2 standard deviations)
Exposure value –3.12 stops   (aim for –2 to –3)
Exposure spread 0.8 stops
Area used for calculation 0.396 x 0.445
Camera settings Exposure time: 1/395   ISO: 400   F-number: 3.5
Focal length: 28.5 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
Luminance 1.99 cd/m2
Luminance spread 3.95 cd/m2 (2 standard deviations)
Exposure value –2.4 stops   (aim for –2 to –3)
Exposure spread 4.25 stops
Area used for calculation 0.396 x 0.445
Camera settings Exposure time: 1/4   ISO: 400   F-number: 3.5
Focal length: 28.5 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.