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Contrast ratio of philips 109b7(CRT)

Contrast ratio 758:1 (edge: 815:1)
Monitor model philips 109b7(CRT)
Submitted 16 Jan 2012 14:44 CET, by 61.59.*.*
Camera model Panasonic DMC-FZ35
Processing remarks


Black
Screen photo
[open image]
Luminance 0.51 cd/m2
Luminance spread 0.03 cd/m2 (2 standard deviations)
Exposure value –1.72 stops   (aim for –2 to –3)
Exposure spread 0.09 stops
Area used for calculation 0.39 x 0.39
Camera settings Exposure time: 1   ISO: 400   F-number: 2.8
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 385 cd/m2
Luminance spread 22 cd/m2 (2 standard deviations)
Exposure value –0.8 stops   (aim for –2 to –3)
Exposure spread 0.08 stops
Area used for calculation 0.39 x 0.39
Camera settings Exposure time: 1/400   ISO: 400   F-number: 2.8
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.47 cd/m2
Luminance spread 0.03 cd/m2 (2 standard deviations)
Exposure value –1.83 stops   (aim for –2 to –3)
Exposure spread 0.1 stops
Area used for calculation 0.39 x 0.39
Camera settings Exposure time: 1   ISO: 400   F-number: 2.8
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.