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Contrast ratio results for canon 350D

Contrast ratio 1339:1
Monitor model canon 350D
Submitted 15 Feb 2008 22:40 CET, by 85.148.*.*
Camera model Canon EOS 350D DIGITAL
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 0.9 s (Set EV to +0.6)
Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation.
Warning: Image focal lengths/zoom levels are not the same.

Black
Screen photo
[open image]
Luminance 0.16 cd/m2
Luminance spread 0.06 cd/m2 (2 standard deviations)
Exposure value –4.13 stops   (aim for –2 to –3)
Exposure spread 0.55 stops
Area used for calculation 0.39 x 0.44
Camera settings Exposure time: 0.3   ISO: 800   F-number: 2.8
Focal length: 28.1 mm   (35 mm equivalent)
Exposure compensation: -1
White
Screen photo
[open image]
Luminance 214 cd/m2
Luminance spread 50 cd/m2 (2 standard deviations)
Exposure value –1.33 stops   (aim for –2 to –3)
Exposure spread 0.34 stops
Area used for calculation 0.43 x 0.49
Camera settings Exposure time: 1/640   ISO: 800   F-number: 2.8
Focal length: 31.2 mm   (35 mm equivalent)
Exposure compensation: 1

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.