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Contrast ratio results for benq e2400hd black turned off

Contrast ratio 1.6178e+06:1
Monitor model benq e2400hd black turned off
Submitted 22 Jun 2009 13:23 CEST, by 87.120.*.*
Camera model Panasonic DMC-FZ18
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 40133.6 s (Set EV to +15.3)

Black
Screen photo
[open image]
Luminance 0 cd/m2
Luminance spread 0 cd/m2 (2 standard deviations)
Exposure value –17.79 stops   (aim for –2 to –3)
Exposure spread 4.25 stops
Area used for calculation 0.404 x 0.404
Camera settings Exposure time: 1   ISO: 100   F-number: 2.8
Focal length: 28 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 48 cd/m2
Luminance spread 17 cd/m2 (2 standard deviations)
Exposure value –2.81 stops   (aim for –2 to –3)
Exposure spread 0.52 stops
Area used for calculation 0.404 x 0.404
Camera settings Exposure time: 1/50   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.