Contrast ratio of LG Flatron L1919S

Contrast ratio 470:1 (edge: 596:1)
Monitor model LG Flatron L1919S
Submitted 02 Sep 2008 22:05 CEST, by 213.37.*.*
Camera model Canon EOS 400D DIGITAL
Processing remarks

Note: image file 1: suggested exposure time: 1.8 s (Set EV to -1.1)

Black
Screen photo
Luminance 0.26 cd/m2
Luminance spread 0.04 cd/m2 (2 standard deviations)
Exposure value –1.36 stops   (aim for –2 to –3)
Exposure spread 0.24 stops
Area used for calculation 0.39 x 0.44
Camera settings Exposure time: 4   ISO: 400   F-number: 3.5
Focal length: 28.1 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 120 cd/m2
Luminance spread 32 cd/m2 (2 standard deviations)
Exposure value –1.8 stops   (aim for –2 to –3)
Exposure spread 0.38 stops
Area used for calculation 0.39 x 0.44
Camera settings Exposure time: 1/160   ISO: 400   F-number: 3.5
Focal length: 28.1 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
Luminance 0.2 cd/m2
Luminance spread 0.03 cd/m2 (2 standard deviations)
Exposure value –1.7 stops   (aim for –2 to –3)
Exposure spread 0.23 stops
Area used for calculation 0.39 x 0.44
Camera settings Exposure time: 4   ISO: 400   F-number: 3.5
Focal length: 28.1 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.