Contrast ratio results for AOC

Black
Contrast ratio	1788:1
Monitor model	AOC
Submitted	29 Dec 2020 20:29 CET, by 45.12..
Camera model	ASUS ASUSI01WD
Processing remarks	Warning: image file 1: could not determine angle of view; assuming 38 mm lens (35 mm equivalent). Warning: image file 1: automatic white balance can cause inaccuracies. Note: image file 1: suggested exposure time: 1/5 s (Set EV to +1.1) Warning: image file 2: could not determine angle of view; assuming 38 mm lens (35 mm equivalent). Warning: image file 2: automatic white balance can cause inaccuracies. Note: image file 2: suggested exposure time: 1/130 s (Set EV to -1.4) Warning: Image ISO settings are not the same.
Screen photo	[open image]
Luminance	0.09 cd/m2
Luminance spread	0.12 cd/m2 (2 standard deviations)
Exposure value	–3.64 stops (aim for –2 to –3)
Exposure spread	2.45 stops
Area used for calculation	0.528 x 0.858
Camera settings	Exposure time: 1/12 ISO: 2980 F-number: 1.8 Focal length: 0 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	161 cd/m2
Luminance spread	49 cd/m2 (2 standard deviations)
Exposure value	–1.11 stops (aim for –2 to –3)
Exposure spread	0.45 stops
Area used for calculation	0.528 x 0.858
Camera settings	Exposure time: 1/50 ISO: 40 F-number: 1.8 Focal length: 0 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.