Contrast ratio results for Viewsonic VX2260

Contrast ratio 1060:1
Monitor model Viewsonic VX2260
Submitted 18 Jul 2009 00:43 CEST, by 69.242.*.*
Camera model Canon PowerShot SD870 IS
Processing remarks

image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Note: image file 1: suggested exposure time: 1.1 s (Set EV to +0.4)
image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Warning: Image F-number settings are not the same.

Black
Screen photo
Luminance 0.14 cd/m2
Luminance spread 0.05 cd/m2 (2 standard deviations)
Exposure value –3.9 stops   (aim for –2 to –3)
Exposure spread 0.51 stops
Area used for calculation 0.393 x 0.393
Camera settings Exposure time: 0.4   ISO: 800   F-number: 2.8
Focal length: 27.2 mm   (35 mm equivalent)
Exposure compensation: -1
White
Screen photo
Luminance 149 cd/m2
Luminance spread 30 cd/m2 (2 standard deviations)
Exposure value –3.21 stops   (aim for –2 to –3)
Exposure spread 0.29 stops
Area used for calculation 0.393 x 0.393
Camera settings Exposure time: 1/202   ISO: 800   F-number: 8
Focal length: 27.2 mm   (35 mm equivalent)
Exposure compensation: -4

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.