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

Contrast ratio of LG W2600HP (bright: 10%)

Contrast ratio 807:1
Monitor model LG W2600HP (bright: 10%)
Submitted 27 Sep 2008 17:54 CEST, by 83.135.*.*
Camera model Canon PowerShot A75
Processing remarks


Black
Screen photo
[open image]
Luminance 0.34 cd/m2
Luminance spread 0.06 cd/m2 (2 standard deviations)
Exposure value –2.31 stops   (aim for –2 to –3)
Exposure spread 0.27 stops
Area used for calculation 0.5 x 0.5
Camera settings Exposure time: 4   ISO: 100   F-number: 2.8
Focal length: 34.6 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 272 cd/m2
Luminance spread 25 cd/m2 (2 standard deviations)
Exposure value –1.62 stops   (aim for –2 to –3)
Exposure spread 0.13 stops
Area used for calculation 0.5 x 0.5
Camera settings Exposure time: 1/125   ISO: 100   F-number: 2.8
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.