Contrast ratio results for AOC 27B2H

Black
Contrast ratio	7612:1 (edge: 10828:1)
Monitor model	AOC 27B2H
Submitted	22 Apr 2023 04:48 CEST, by 143.177..
Camera model	motorola moto g8 power
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. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 12.5 s (Set EV to +5.6) 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. Warning: image file 3: could not determine angle of view; assuming 38 mm lens (35 mm equivalent). Warning: image file 3: automatic white balance can cause inaccuracies. Warning: image file 3: Underexposed. Please increase the shutter time. Note: image file 3: suggested exposure time: 17.8 s (Set EV to +6.2)
Screen photo	[open image]
Luminance	0.01 cd/m2
Luminance spread	0.01 cd/m2 (2 standard deviations)
Exposure value	–8.15 stops (aim for –2 to –3)
Exposure spread	1.86 stops
Area used for calculation	0.528 x 0.528
Camera settings	Exposure time: 1/4 ISO: 400 F-number: 1.7 Focal length: 0 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	66 cd/m2
Luminance spread	8 cd/m2 (2 standard deviations)
Exposure value	–1.7 stops (aim for –2 to –3)
Exposure spread	0.17 stops
Area used for calculation	0.528 x 0.528
Camera settings	Exposure time: 1/350 ISO: 400 F-number: 1.7 Focal length: 0 mm (35 mm equivalent) Exposure compensation: 0
Black at screen edge
Screen photo	[open image]
Luminance	0.01 cd/m2
Luminance spread	0.01 cd/m2 (2 standard deviations)
Exposure value	–8.65 stops (aim for –2 to –3)
Exposure spread	1.58 stops
Area used for calculation	0.528 x 0.528
Camera settings	Exposure time: 1/4 ISO: 400 F-number: 1.7 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.