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Contrast ratio of TV Samsung UE40JU6440

Contrast ratio 5504:1
Monitor model TV Samsung UE40JU6440
Submitted 11 Apr 2016 00:12 CEST, by 79.114.*.*
Camera model Sony ILCE-6000
Processing remarks

Note: image file 1: suggested exposure time: 13.1 s (Set EV to +1.4)

Black
Screen photo
[open image]
Luminance 0.07 cd/m2
Luminance spread 0.02 cd/m2 (2 standard deviations)
Exposure value –3.89 stops   (aim for –2 to –3)
Exposure spread 0.45 stops
Area used for calculation 0.624 x 0.704
Camera settings Exposure time: 5   ISO: 400   F-number: 5
Focal length: 45 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 396 cd/m2
Luminance spread 104 cd/m2 (2 standard deviations)
Exposure value –2.43 stops   (aim for –2 to –3)
Exposure spread 0.38 stops
Area used for calculation 0.624 x 0.704
Camera settings Exposure time: 1/400   ISO: 400   F-number: 5
Focal length: 45 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.