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Contrast ratio of benq e2400hd

Contrast ratio 454:1
Monitor model benq e2400hd
Submitted 22 Jun 2009 13:15 CEST, by 87.120.*.*
Camera model Panasonic DMC-FZ18
Processing remarks

Note: image file 1: suggested exposure time: 9.8 s (Set EV to -1.0)

Black
Screen photo
[open image]
Luminance 0.12 cd/m2
Luminance spread 0.03 cd/m2 (2 standard deviations)
Exposure value –1.47 stops   (aim for –2 to –3)
Exposure spread 0.35 stops
Area used for calculation 0.404 x 0.404
Camera settings Exposure time: 20   ISO: 100   F-number: 2.8
Focal length: 28 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 55 cd/m2
Luminance spread 16 cd/m2 (2 standard deviations)
Exposure value –2.28 stops   (aim for –2 to –3)
Exposure spread 0.43 stops
Area used for calculation 0.404 x 0.404
Camera settings Exposure time: 1/40   ISO: 100   F-number: 2.8
Focal length: 28 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.