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

Contrast ratio results

Contrast ratio 756:1
Monitor model
Submitted 28 May 2022 15:46 CEST, by 82.64.*.*
Camera model OnePlus A6003
Processing remarks


Black
Screen photo
[open image]
Luminance 0.07 cd/m2
Luminance spread 0.01 cd/m2 (2 standard deviations)
Exposure value –1.81 stops   (aim for –2 to –3)
Exposure spread 0.23 stops
Area used for calculation 0.361 x 0.361
Camera settings Exposure time: 1.3   ISO: 800   F-number: 1.7
Focal length: 25 mm   (35 mm equivalent)
Exposure compensation: -0.167
White
Screen photo
[open image]
Luminance 51 cd/m2
Luminance spread 3 cd/m2 (2 standard deviations)
Exposure value –1.59 stops   (aim for –2 to –3)
Exposure spread 0.08 stops
Area used for calculation 0.361 x 0.361
Camera settings Exposure time: 1/500   ISO: 800   F-number: 1.7
Focal length: 25 mm   (35 mm equivalent)
Exposure compensation: -0.167

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.