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Contrast ratio results for BenQ BL2711U

Contrast ratio 758:1 (edge: 668:1)
Monitor model BenQ BL2711U
Submitted 02 May 2017 08:37 CEST, by 96.52.*.*
Camera model Nikon D750
Processing remarks

Warning: Image F-number settings are not the same.

Black
Screen photo
[open image]
Luminance 0.39 cd/m2
Luminance spread 0.27 cd/m2 (2 standard deviations)
Exposure value –2.52 stops   (aim for –2 to –3)
Exposure spread 1.02 stops
Area used for calculation 0.695 x 0.78
Camera settings Exposure time: 3   ISO: 100   F-number: 2.8
Focal length: 50 mm   (35 mm equivalent)
Exposure compensation: 1
White
Screen photo
[open image]
Luminance 296 cd/m2
Luminance spread 54 cd/m2 (2 standard deviations)
Exposure value –2.53 stops   (aim for –2 to –3)
Exposure spread 0.26 stops
Area used for calculation 0.695 x 0.78
Camera settings Exposure time: 1/500   ISO: 100   F-number: 2
Focal length: 50 mm   (35 mm equivalent)
Exposure compensation: 1
Black at screen edge
Screen photo
[open image]
Luminance 0.44 cd/m2
Luminance spread 0.35 cd/m2 (2 standard deviations)
Exposure value –2.6 stops   (aim for –2 to –3)
Exposure spread 1.21 stops
Area used for calculation 0.695 x 0.78
Camera settings Exposure time: 2.5   ISO: 100   F-number: 2.8
Focal length: 50 mm   (35 mm equivalent)
Exposure compensation: 1

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.