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

Contrast ratio results

Contrast ratio 2279:1
Monitor model
Submitted 01 Nov 2022 22:03 CET, by 176.59.*.*
Camera model Xiaomi M2003J15SC
Processing remarks


Black
Screen photo
[open image]
Luminance 0.07 cd/m2
Luminance spread 0.09 cd/m2 (2 standard deviations)
Exposure value –3.24 stops   (aim for –2 to –3)
Exposure spread 2.21 stops
Area used for calculation 0.404 x 0.405
Camera settings Exposure time: 1   ISO: 400   F-number: 1.8
Focal length: 28 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 167 cd/m2
Luminance spread 18 cd/m2 (2 standard deviations)
Exposure value –0.73 stops   (aim for –2 to –3)
Exposure spread 0.16 stops
Area used for calculation 0.404 x 0.405
Camera settings Exposure time: 1/400   ISO: 400   F-number: 1.8
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.