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

Contrast ratio of ASUS

Contrast ratio 541:1
Monitor model ASUS
Submitted 14 Jan 2018 19:03 CET, by 98.191.*.*
Camera model Sony ILCE-7S
Processing remarks

Note: image file 1: suggested exposure time: 0.5 s (Set EV to -1.1)

Black
Screen photo
[open image]
Luminance 0.13 cd/m2
Luminance spread 0.04 cd/m2 (2 standard deviations)
Exposure value –1.42 stops   (aim for –2 to –3)
Exposure spread 0.41 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 1   ISO: 800   F-number: 1.8
Focal length: 75 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 70 cd/m2
Luminance spread 27 cd/m2 (2 standard deviations)
Exposure value –0.99 stops   (aim for –2 to –3)
Exposure spread 0.56 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 1/400   ISO: 800   F-number: 1.8
Focal length: 75 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.