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Contrast ratio of DELL 2408WFP

Contrast ratio 474:1
Monitor model DELL 2408WFP
Submitted 07 May 2009 13:08 CEST, by 125.63.*.*
Camera model Nikon D90
Processing remarks


Black
Screen photo
[open image]
Luminance 0.6 cd/m2
Luminance spread 0.17 cd/m2 (2 standard deviations)
Exposure value –2.52 stops   (aim for –2 to –3)
Exposure spread 0.41 stops
Area used for calculation 0.25 x 0.282
Camera settings Exposure time: 1   ISO: 400   F-number: 4
Focal length: 18 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 283 cd/m2
Luminance spread 31 cd/m2 (2 standard deviations)
Exposure value –2.59 stops   (aim for –2 to –3)
Exposure spread 0.16 stops
Area used for calculation 0.25 x 0.282
Camera settings Exposure time: 1/500   ISO: 400   F-number: 4
Focal length: 18 mm   (35 mm equivalent)
Exposure compensation: -2

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.