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Contrast ratio of BenQ PD2700Q

Contrast ratio 1780:1 (edge: 1294:1)
Monitor model BenQ PD2700Q
Submitted 09 Feb 2019 00:18 CET, by 80.182.*.*
Camera model Canon EOS 77D
Processing remarks

Note: image file 1: suggested exposure time: 2.4 s (Set EV to +1.3)

Black
Screen photo
[open image]
Luminance 0.19 cd/m2
Luminance spread 0.12 cd/m2 (2 standard deviations)
Exposure value –3.75 stops   (aim for –2 to –3)
Exposure spread 0.92 stops
Area used for calculation 0.389 x 0.437
Camera settings Exposure time: 1   ISO: 400   F-number: 3.5
Focal length: 28 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 346 cd/m2
Luminance spread 31 cd/m2 (2 standard deviations)
Exposure value –1.58 stops   (aim for –2 to –3)
Exposure spread 0.13 stops
Area used for calculation 0.389 x 0.437
Camera settings Exposure time: 1/395   ISO: 400   F-number: 3.5
Focal length: 28 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.27 cd/m2
Luminance spread 0.19 cd/m2 (2 standard deviations)
Exposure value –3.29 stops   (aim for –2 to –3)
Exposure spread 1.08 stops
Area used for calculation 0.389 x 0.437
Camera settings Exposure time: 1   ISO: 400   F-number: 3.5
Focal length: 28 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.