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Contrast ratio results for ben q GW2780

Contrast ratio 16494:1
Monitor model ben q GW2780
Submitted 07 Aug 2022 19:59 CEST, by 49.37.*.*
Camera model Nikon D7200
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 52.6 s (Set EV to +9.0)

Black
Screen photo
[open image]
Luminance 0.01 cd/m2
Luminance spread 0.01 cd/m2 (2 standard deviations)
Exposure value –15.54 stops   (aim for –2 to –3)
Exposure spread 1.73 stops
Area used for calculation 0.625 x 0.703
Camera settings Exposure time: 1/160   ISO: 800   F-number: 5
Focal length: 45 mm   (35 mm equivalent)
Exposure compensation: -4
White
Screen photo
[open image]
Luminance 148 cd/m2
Luminance spread 22 cd/m2 (2 standard deviations)
Exposure value –1.53 stops   (aim for –2 to –3)
Exposure spread 0.22 stops
Area used for calculation 0.625 x 0.703
Camera settings Exposure time: 1/160   ISO: 800   F-number: 5
Focal length: 45 mm   (35 mm equivalent)
Exposure compensation: -4

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.