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

Contrast ratio of LG

Contrast ratio 2881:1
Monitor model LG
Submitted 11 Apr 2022 01:04 CEST, by 109.115.*.*
Camera model Nikon Z 6
Processing remarks

Note: image file 1: suggested exposure time: 2.7 s (Set EV to -2.2)

Black
Screen photo
[open image]
Luminance 0.11 cd/m2
Luminance spread 0.05 cd/m2 (2 standard deviations)
Exposure value –1.33 stops   (aim for –2 to –3)
Exposure spread 0.64 stops
Area used for calculation 0.486 x 0.547
Camera settings Exposure time: 6   ISO: 400   F-number: 2.8
Focal length: 35 mm   (35 mm equivalent)
Exposure compensation: -1
White
Screen photo
[open image]
Luminance 320 cd/m2
Luminance spread 34 cd/m2 (2 standard deviations)
Exposure value –1.07 stops   (aim for –2 to –3)
Exposure spread 0.15 stops
Area used for calculation 0.486 x 0.547
Camera settings Exposure time: 1/400   ISO: 400   F-number: 2.8
Focal length: 35 mm   (35 mm equivalent)
Exposure compensation: -1

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.