Contrast ratio | Test results | LCD test | Small-screen tests | Lagom home

Contrast ratio of AOC

Contrast ratio 636:1
Monitor model AOC
Submitted 22 Oct 2024 04:54 CEST, by 190.24.*.*
Camera model samsung Galaxy S23
Processing remarks

Note: image file 1: suggested exposure time: 2.2 s (Set EV to +0.8)

Black
Screen photo
[open image]
Luminance 0.22 cd/m2
Luminance spread 0.05 cd/m2 (2 standard deviations)
Exposure value –3.63 stops   (aim for –2 to –3)
Exposure spread 0.35 stops
Area used for calculation 0.332 x 0.332
Camera settings Exposure time: 1   ISO: 100   F-number: 1.8
Focal length: 23 mm   (35 mm equivalent)
Exposure compensation: -0.3
White
Screen photo
[open image]
Luminance 143 cd/m2
Luminance spread 28 cd/m2 (2 standard deviations)
Exposure value –2.77 stops   (aim for –2 to –3)
Exposure spread 0.28 stops
Area used for calculation 0.332 x 0.332
Camera settings Exposure time: 1/350   ISO: 100   F-number: 1.8
Focal length: 23 mm   (35 mm equivalent)
Exposure compensation: -0.3

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.