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

Contrast ratio of LG 60LM7200-UA

Contrast ratio 762:1 (edge: 721:1)
Monitor model LG 60LM7200-UA
Submitted 03 May 2017 06:25 CEST, by 96.52.*.*
Camera model Nikon D750
Processing remarks


Black
Screen photo
[open image]
Luminance 0.43 cd/m2
Luminance spread 0.04 cd/m2 (2 standard deviations)
Exposure value –1.99 stops   (aim for –2 to –3)
Exposure spread 0.14 stops
Area used for calculation 0.695 x 0.78
Camera settings Exposure time: 2   ISO: 100   F-number: 2
Focal length: 50 mm   (35 mm equivalent)
Exposure compensation: 1
White
Screen photo
[open image]
Luminance 329 cd/m2
Luminance spread 201 cd/m2 (2 standard deviations)
Exposure value –2.38 stops   (aim for –2 to –3)
Exposure spread 0.91 stops
Area used for calculation 0.695 x 0.78
Camera settings Exposure time: 1/500   ISO: 100   F-number: 2
Focal length: 50 mm   (35 mm equivalent)
Exposure compensation: 1
Black at screen edge
Screen photo
[open image]
Luminance 0.46 cd/m2
Luminance spread 0.1 cd/m2 (2 standard deviations)
Exposure value –2.23 stops   (aim for –2 to –3)
Exposure spread 0.32 stops
Area used for calculation 0.695 x 0.78
Camera settings Exposure time: 1.6   ISO: 100   F-number: 2
Focal length: 50 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.