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

Contrast ratio of Kogan KAMN27RQ1LA

Contrast ratio 2564:1
Monitor model Kogan KAMN27RQ1LA
Submitted 07 Nov 2020 05:11 CET, by 180.150.*.*
Camera model samsung SM-G970F
Processing remarks


Black
Screen photo
[open image]
Luminance 0.12 cd/m2
Luminance spread 0.08 cd/m2 (2 standard deviations)
Exposure value –3.39 stops   (aim for –2 to –3)
Exposure spread 1.08 stops
Area used for calculation 0.376 x 0.376
Camera settings Exposure time: 1   ISO: 400   F-number: 2.4
Focal length: 26 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 301 cd/m2
Luminance spread 24 cd/m2 (2 standard deviations)
Exposure value –0.52 stops   (aim for –2 to –3)
Exposure spread 0.12 stops
Area used for calculation 0.376 x 0.376
Camera settings Exposure time: 1/350   ISO: 400   F-number: 2.4
Focal length: 26 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.