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Contrast ratio of LG Flatron W2452V

Contrast ratio 381:1 (edge: 369:1)
Monitor model LG Flatron W2452V
Submitted 01 Nov 2008 21:16 CET, by 141.31.*.*
Camera model Canon PowerShot A710 IS
Processing remarks


Black
Screen photo
[open image]
Luminance 0.16 cd/m2
Luminance spread 0.03 cd/m2 (2 standard deviations)
Exposure value –3.37 stops   (aim for –2 to –3)
Exposure spread 0.24 stops
Area used for calculation 0.495 x 0.495
Camera settings Exposure time: 1   ISO: 408   F-number: 2.8
Focal length: 34.3 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 60 cd/m2
Luminance spread 9 cd/m2 (2 standard deviations)
Exposure value –3.45 stops   (aim for –2 to –3)
Exposure spread 0.23 stops
Area used for calculation 0.495 x 0.495
Camera settings Exposure time: 1/403   ISO: 408   F-number: 2.8
Focal length: 34.3 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.16 cd/m2
Luminance spread 0.03 cd/m2 (2 standard deviations)
Exposure value –3.33 stops   (aim for –2 to –3)
Exposure spread 0.27 stops
Area used for calculation 0.495 x 0.495
Camera settings Exposure time: 1   ISO: 408   F-number: 2.8
Focal length: 34.3 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.