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Contrast ratio results for Hannspree

Contrast ratio 1:1
Monitor model Hannspree
Submitted 20 Oct 2009 08:23 CEST, by 79.72.*.*
Camera model Fujifilm FinePix F31fd
Processing remarks

Warning: image file 2: Overexposed. Please decrease the shutter time.
Note: image file 2: suggested exposure time: 1/320 s (Set EV to -0.2)

Black
Screen photo
[open image]
Luminance 88 cd/m2
Luminance spread 13 cd/m2 (2 standard deviations)
Exposure value –2.8 stops   (aim for –2 to –3)
Exposure spread 0.21 stops
Area used for calculation 0.52 x 0.52
Camera settings Exposure time: 1/365   ISO: 400   F-number: 2.8
Focal length: 36 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 95 cd/m2
Luminance spread 9 cd/m2 (2 standard deviations)
Exposure value –0.33 stops   (aim for –2 to –3)
Exposure spread 0.14 stops
Area used for calculation 0.52 x 0.52
Camera settings Exposure time: 1/71   ISO: 400   F-number: 2.8
Focal length: 36 mm   (35 mm equivalent)
Exposure compensation: 2

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.