Contrast ratio results for Asus VG248QE

Contrast ratio 601:1
Monitor model Asus VG248QE
Submitted 02 Sep 2018 05:53 CEST, by 71.12.*.*
Camera model samsung SM-N910V
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 0.5 s (Set EV to +2.0)
Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation.

Black
Screen photo
Luminance 0.36 cd/m2
Luminance spread 0.12 cd/m2 (2 standard deviations)
Exposure value –4.54 stops   (aim for –2 to –3)
Exposure spread 0.5 stops
Area used for calculation 0.411 x 0.548
Camera settings Exposure time: 1/8   ISO: 400   F-number: 2.2
Focal length: 31 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 214 cd/m2
Luminance spread 72 cd/m2 (2 standard deviations)
Exposure value –1.54 stops   (aim for –2 to –3)
Exposure spread 0.49 stops
Area used for calculation 0.411 x 0.548
Camera settings Exposure time: 1/600   ISO: 400   F-number: 2.2
Focal length: 31 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.