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Contrast ratio results for Benq XL2411

Contrast ratio 2:1
Monitor model Benq XL2411
Submitted 23 Nov 2018 11:46 CET, by 5.150.*.*
Camera model HUAWEI CLT-L29
Processing remarks

Warning: image file 1: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation.
Warning: image file 1: automatic white balance can cause inaccuracies.
Warning: image file 1: Underexposed. Please increase the shutter time.
Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation.
Warning: image file 2: automatic white balance can cause inaccuracies.
Warning: image file 2: Underexposed. Please increase the shutter time.

Black
Screen photo
[open image]
Luminance 1.6267e+07 cd/m2
Luminance spread 9.02075e+06 cd/m2 (2 standard deviations)
Exposure value –5.07 stops   (aim for –2 to –3)
Exposure spread 0.82 stops
Area used for calculation 0.349 x 0.523
Camera settings Exposure time: 1/99996336   ISO: 400   F-number: 1.6
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 3.18767e+07 cd/m2
Luminance spread 2.46735e+07 cd/m2 (2 standard deviations)
Exposure value –4.1 stops   (aim for –2 to –3)
Exposure spread 1.18 stops
Area used for calculation 0.349 x 0.523
Camera settings Exposure time: 1/99996336   ISO: 400   F-number: 1.6
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
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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.