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

Contrast ratio results for AOC

Contrast ratio 24280:1
Monitor model AOC
Submitted 13 Jan 2024 21:27 CET, by 213.244.*.*
Camera model samsung SM-G990B2
Processing remarks

image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 18.1 s (Set EV to +10.6)
image file 2: Warning: image includes screen edges or something that's not a monitor. Hold the camera close to the screen.

Black
Screen photo
[open image]
Luminance 0.01 cd/m2
Luminance spread 0.01 cd/m2 (2 standard deviations)
Exposure value –15.13 stops   (aim for –2 to –3)
Exposure spread 1.08 stops
Area used for calculation 0.188 x 0.188
Camera settings Exposure time: 1/350   ISO: 400   F-number: 2.2
Focal length: 13 mm   (35 mm equivalent)
Exposure compensation: -2
White
Screen photo
[open image]
Luminance 246 cd/m2
Luminance spread 32 cd/m2 (2 standard deviations)
Exposure value –0.56 stops   (aim for –2 to –3)
Exposure spread 0.19 stops
Area used for calculation 0.188 x 0.188
Camera settings Exposure time: 1/350   ISO: 400   F-number: 2.2
Focal length: 13 mm   (35 mm equivalent)
Exposure compensation: -1.3
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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.