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Contrast ratio results for Benq FP71G+

Contrast ratio 993:1
Monitor model Benq FP71G+
Submitted 03 Jan 2009 03:02 CET, by 85.197.*.*
Camera model Fujifilm FinePix F31fd
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 2.2 s (Set EV to +3.1)
Note: image file 2: suggested exposure time: 1/460 s (Set EV to -1.1)

Black
Screen photo
[open image]
Luminance 0.07 cd/m2
Luminance spread 0.07 cd/m2 (2 standard deviations)
Exposure value –5.61 stops   (aim for –2 to –3)
Exposure spread 1.63 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 1/4   ISO: 800   F-number: 2.8
Focal length: 72 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 68 cd/m2
Luminance spread 31 cd/m2 (2 standard deviations)
Exposure value –1.44 stops   (aim for –2 to –3)
Exposure spread 0.66 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 1/220   ISO: 800   F-number: 2.8
Focal length: 72 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.