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

Contrast ratio of Asus

Contrast ratio 171:1
Monitor model Asus
Submitted 04 Feb 2017 02:17 CET, by 109.152.*.*
Camera model OnePlus A3003
Processing remarks

Note: image file 2: suggested exposure time: 1/200 s (Set EV to +1.3)

Black
Screen photo
[open image]
Luminance 0.17 cd/m2
Luminance spread 0.01 cd/m2 (2 standard deviations)
Exposure value –2.29 stops   (aim for –2 to –3)
Exposure spread 0.09 stops
Area used for calculation 0.458 x 0.343
Camera settings Exposure time: 1   ISO: 400   F-number: 2
Focal length: 28 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 30 cd/m2
Luminance spread 3 cd/m2 (2 standard deviations)
Exposure value –3.83 stops   (aim for –2 to –3)
Exposure spread 0.13 stops
Area used for calculation 0.458 x 0.343
Camera settings Exposure time: 1/500   ISO: 400   F-number: 2
Focal length: 28 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.