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Contrast ratio results for ASUS VS239H

Contrast ratio 1183:1 (edge: 1290:1)
Monitor model ASUS VS239H
Submitted 06 Jul 2012 19:43 CEST, by 83.149.*.*
Camera model Canon PowerShot SX100 IS
Processing remarks

image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 4.1 s (Set EV to +2.1)
Note: image file 2: suggested exposure time: 1/290 s (Set EV to -1.2)
image file 3: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Warning: image file 3: Underexposed. Please increase the shutter time.
Note: image file 3: suggested exposure time: 4.5 s (Set EV to +2.2)

Black
Screen photo
[open image]
Luminance 0.09 cd/m2
Luminance spread 0.04 cd/m2 (2 standard deviations)
Exposure value –4.55 stops   (aim for –2 to –3)
Exposure spread 0.61 stops
Area used for calculation 0.513 x 0.513
Camera settings Exposure time: 1   ISO: 400   F-number: 3.2
Focal length: 35.5 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 110 cd/m2
Luminance spread 7 cd/m2 (2 standard deviations)
Exposure value –1.31 stops   (aim for –2 to –3)
Exposure spread 0.09 stops
Area used for calculation 0.513 x 0.513
Camera settings Exposure time: 1/125   ISO: 400   F-number: 3.2
Focal length: 35.5 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.09 cd/m2
Luminance spread 0.06 cd/m2 (2 standard deviations)
Exposure value –4.68 stops   (aim for –2 to –3)
Exposure spread 1.14 stops
Area used for calculation 0.513 x 0.513
Camera settings Exposure time: 1   ISO: 400   F-number: 3.2
Focal length: 35.5 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.