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Contrast ratio of LG TM2792S-SZ

Contrast ratio 1428:1
Monitor model LG TM2792S-SZ
Submitted 03 Dec 2012 18:26 CET, by 85.179.*.*
Camera model SAMSUNG SAMSUNG WB550 WB560 / VLUU WB55
Processing remarks

Note: image file 1: suggested exposure time: 2.7 s (Set EV to +1.4)

Black
Screen photo
[open image]
Luminance 0.15 cd/m2
Luminance spread 0.08 cd/m2 (2 standard deviations)
Exposure value –3.95 stops   (aim for –2 to –3)
Exposure spread 0.76 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 1   ISO: 400   F-number: 3.3
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 216 cd/m2
Luminance spread 20 cd/m2 (2 standard deviations)
Exposure value –1.97 stops   (aim for –2 to –3)
Exposure spread 0.13 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 1/362   ISO: 400   F-number: 3.3
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.