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Contrast ratio results for Mirai DTL-642E500

Contrast ratio 472:1
Monitor model Mirai DTL-642E500
Submitted 29 Feb 2008 10:26 CET, by 83.145.*.*
Camera model Canon DIGITAL IXUS 70
Processing remarks

Warning: image file 1: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Note: image file 1: suggested exposure time: 0.8 s (Set EV to +1.1)
Warning: image file 2: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.

Black
Screen photo
[open image]
Luminance 0.36 cd/m2
Luminance spread 0.11 cd/m2 (2 standard deviations)
Exposure value –3.56 stops   (aim for –2 to –3)
Exposure spread 0.47 stops
Area used for calculation 0.5 x 0.5
Camera settings Exposure time: 0.4   ISO: 400   F-number: 2.8
Focal length: 34.3 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 168 cd/m2
Luminance spread 22 cd/m2 (2 standard deviations)
Exposure value –2.01 stops   (aim for –2 to –3)
Exposure spread 0.19 stops
Area used for calculation 0.5 x 0.5
Camera settings Exposure time: 1/403   ISO: 400   F-number: 2.8
Focal length: 34.3 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.