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

Contrast ratio of LG M2294D

Contrast ratio 884:1 (edge: 1016:1)
Monitor model LG M2294D
Submitted 16 Jan 2009 10:45 CET, by 78.97.*.*
Camera model Canon PowerShot A510
Processing remarks


Black
Screen photo
[open image]
Luminance 0.36 cd/m2
Luminance spread 0.12 cd/m2 (2 standard deviations)
Exposure value –2 stops   (aim for –2 to –3)
Exposure spread 0.47 stops
Area used for calculation 0.5 x 0.5
Camera settings Exposure time: 1   ISO: 400   F-number: 2.6
Focal length: 34.6 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 319 cd/m2
Luminance spread 28 cd/m2 (2 standard deviations)
Exposure value –0.87 stops   (aim for –2 to –3)
Exposure spread 0.13 stops
Area used for calculation 0.5 x 0.5
Camera settings Exposure time: 1/403   ISO: 400   F-number: 2.6
Focal length: 34.6 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.31 cd/m2
Luminance spread 0.12 cd/m2 (2 standard deviations)
Exposure value –2.2 stops   (aim for –2 to –3)
Exposure spread 0.56 stops
Area used for calculation 0.5 x 0.5
Camera settings Exposure time: 1   ISO: 400   F-number: 2.6
Focal length: 34.6 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.