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

Contrast ratio results

Contrast ratio 820:1
Monitor model
Submitted 31 Oct 2021 21:43 CET, by 188.155.*.*
Camera model Google Pixel 5
Processing remarks

Note: image file 2: suggested exposure time: 1/280 s (Set EV to +inf)
Warning: Image ISO settings are not the same.

Black
Screen photo
[open image]
Luminance 0.1 cd/m2
Luminance spread 0.1 cd/m2 (2 standard deviations)
Exposure value –3.3 stops   (aim for –2 to –3)
Exposure spread 1.5 stops
Area used for calculation 0.361 x 0.361
Camera settings Exposure time: 1/15   ISO: 3710   F-number: 1.7
Focal length: 25 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 83 cd/m2
Luminance spread 6 cd/m2 (2 standard deviations)
Exposure value –0.85 stops   (aim for –2 to –3)
Exposure spread 0.11 stops
Area used for calculation 0.361 x 0.361
Camera settings Exposure time: 1/90   ISO: 148   F-number: 1.7
Focal length: 25 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.