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Contrast ratio of Samsung LTN154X3

Contrast ratio 245:1
Monitor model Samsung LTN154X3
Submitted 25 Jul 2012 23:32 CEST, by 188.6.*.*
Camera model Panasonic DMC-FZ28
Processing remarks

Note: image file 1: suggested exposure time: 0.5 s (Set EV to +1.5)

Black
Screen photo
[open image]
Luminance 0.65 cd/m2
Luminance spread 1.39 cd/m2 (2 standard deviations)
Exposure value –3.95 stops   (aim for –2 to –3)
Exposure spread 4.25 stops
Area used for calculation 0.39 x 0.39
Camera settings Exposure time: 1/6   ISO: 400   F-number: 2.8
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 159 cd/m2
Luminance spread 24 cd/m2 (2 standard deviations)
Exposure value –1.76 stops   (aim for –2 to –3)
Exposure spread 0.22 stops
Area used for calculation 0.39 x 0.39
Camera settings Exposure time: 1/320   ISO: 400   F-number: 2.8
Focal length: 27 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.