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Contrast ratio of LG IPS235V

Contrast ratio 839:1
Monitor model LG IPS235V
Submitted 15 Jan 2012 14:21 CET, by 78.8.*.*
Camera model Pentax K-5
Processing remarks


Black
Screen photo
[open image]
Luminance 0.16 cd/m2
Luminance spread 0.07 cd/m2 (2 standard deviations)
Exposure value –3.02 stops   (aim for –2 to –3)
Exposure spread 0.63 stops
Area used for calculation 0.375 x 0.422
Camera settings Exposure time: 2   ISO: 400   F-number: 3.5
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 135 cd/m2
Luminance spread 12 cd/m2 (2 standard deviations)
Exposure value –2.27 stops   (aim for –2 to –3)
Exposure spread 0.13 stops
Area used for calculation 0.375 x 0.422
Camera settings Exposure time: 1/250   ISO: 400   F-number: 3.5
Focal length: 27 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.