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

Contrast ratio of Asus VG248QE

Contrast ratio 758:1 (edge: 764:1)
Monitor model Asus VG248QE
Submitted 22 Jul 2016 21:20 CEST, by 109.240.*.*
Camera model Fujifilm FinePix HS20EXR
Processing remarks


Black
Screen photo
[open image]
Luminance 0.2 cd/m2
Luminance spread 0.08 cd/m2 (2 standard deviations)
Exposure value –3.05 stops   (aim for –2 to –3)
Exposure spread 0.57 stops
Area used for calculation 0.326 x 0.435
Camera settings Exposure time: 1   ISO: 400   F-number: 2.8
Focal length: 24.6 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 153 cd/m2
Luminance spread 73 cd/m2 (2 standard deviations)
Exposure value –2.18 stops   (aim for –2 to –3)
Exposure spread 0.7 stops
Area used for calculation 0.326 x 0.435
Camera settings Exposure time: 1/416   ISO: 400   F-number: 2.8
Focal length: 24.6 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.2 cd/m2
Luminance spread 0.08 cd/m2 (2 standard deviations)
Exposure value –3.06 stops   (aim for –2 to –3)
Exposure spread 0.56 stops
Area used for calculation 0.326 x 0.435
Camera settings Exposure time: 1   ISO: 400   F-number: 2.8
Focal length: 24.6 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.