Contrast ratio of Compal FL90

Contrast ratio 375:1
Monitor model Compal FL90
Submitted 14 Nov 2009 20:05 CET, by 217.196.*.*
Camera model Nikon D80
Processing remarks


Black
Screen photo
Luminance 0.4 cd/m2
Luminance spread 0.92 cd/m2 (2 standard deviations)
Exposure value –2.79 stops   (aim for –2 to –3)
Exposure spread 4.25 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 1/4   ISO: 400   F-number: 1.8
Focal length: 75 mm   (35 mm equivalent)
Exposure compensation: -1
White
Screen photo
Luminance 150 cd/m2
Luminance spread 35 cd/m2 (2 standard deviations)
Exposure value –0.88 stops   (aim for –2 to –3)
Exposure spread 0.34 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 1/400   ISO: 400   F-number: 1.8
Focal length: 75 mm   (35 mm equivalent)
Exposure compensation: -1

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.