Contrast ratio results for Asus LCD notebook

Contrast ratio 148:1
Monitor model Asus LCD notebook
Submitted 06 Sep 2011 00:38 CEST, by 151.25.*.*
Camera model SAMSUNG TECHWIN NV24HD VLUU NV24HD LANDI
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: 0.9 s (Set EV to +1.9)
image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Note: image file 2: suggested exposure time: 1/160 s (Set EV to +1.3)

Black
Screen photo
Luminance 0.33 cd/m2
Luminance spread 0.87 cd/m2 (2 standard deviations)
Exposure value –4.36 stops   (aim for –2 to –3)
Exposure spread 4.25 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 1/4   ISO: 400   F-number: 2.8
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 48 cd/m2
Luminance spread 23 cd/m2 (2 standard deviations)
Exposure value –3.8 stops   (aim for –2 to –3)
Exposure spread 0.69 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 1/400   ISO: 400   F-number: 2.8
Focal length: 24 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.