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

Contrast ratio results

Contrast ratio 16720:1
Monitor model
Submitted 01 Apr 2024 23:16 CEST, by 95.144.*.*
Camera model motorola moto g200 5G
Processing remarks

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: 11.5 s (Set EV to +6.8)
Warning: image file 2: automatic white balance can cause inaccuracies.
image file 2: Warning: image includes screen edges or something that's not a monitor. Hold the camera close to the screen.
Note: image file 2: suggested exposure time: 1/380 s (Set EV to -1.9)
Warning: Image ISO settings are not the same.
Warning: Image F-number settings are not the same.
Warning: Image focal lengths/zoom levels are not the same.

Black
Screen photo
[open image]
Luminance 0.01 cd/m2
Luminance spread 0.01 cd/m2 (2 standard deviations)
Exposure value –9.35 stops   (aim for –2 to –3)
Exposure spread 4.25 stops
Area used for calculation 0.3 x 0.548
Camera settings Exposure time: 1/10   ISO: 800   F-number: 1.9
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 99 cd/m2
Luminance spread 14 cd/m2 (2 standard deviations)
Exposure value –0.59 stops   (aim for –2 to –3)
Exposure spread 0.21 stops
Area used for calculation 0.2 x 0.36
Camera settings Exposure time: 1/100   ISO: 277   F-number: 2.2
Focal length: 16 mm   (35 mm equivalent)
Exposure compensation: 0
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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.