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

Contrast ratio of LG

Contrast ratio 565:1
Monitor model LG
Submitted 20 Apr 2014 22:54 CEST, by 31.211.*.*
Camera model Nikon D7100
Processing remarks


Black
Screen photo
[open image]
Luminance 0.28 cd/m2
Luminance spread 0.06 cd/m2 (2 standard deviations)
Exposure value –2.3 stops   (aim for –2 to –3)
Exposure spread 0.3 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 0.5   ISO: 400   F-number: 1.8
Focal length: 75 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 159 cd/m2
Luminance spread 25 cd/m2 (2 standard deviations)
Exposure value –0.8 stops   (aim for –2 to –3)
Exposure spread 0.23 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 1/400   ISO: 400   F-number: 1.8
Focal length: 75 mm   (35 mm equivalent)
Exposure compensation: 2

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.