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Contrast ratio results for BenQ GW2780

Contrast ratio 148:1
Monitor model BenQ GW2780
Submitted 08 Jul 2020 17:47 CEST, by 77.115.*.*
Camera model Canon EOS 250D
Processing remarks

Warning: image file 1: Overexposed. Please decrease the shutter time.
Note: image file 1: suggested exposure time: 1/4 s (Set EV to -2.5)

Black
Screen photo
[open image]
Luminance 2.58 cd/m2
Luminance spread 0.02 cd/m2 (2 standard deviations)
Exposure value –0.03 stops   (aim for –2 to –3)
Exposure spread 0.01 stops
Area used for calculation 0.537 x 0.605
Camera settings Exposure time: 1.3   ISO: 400   F-number: 4
Focal length: 38.7 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 382 cd/m2
Luminance spread 42 cd/m2 (2 standard deviations)
Exposure value –0.57 stops   (aim for –2 to –3)
Exposure spread 0.16 stops
Area used for calculation 0.537 x 0.605
Camera settings Exposure time: 1/166   ISO: 400   F-number: 4
Focal length: 38.7 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.