Contrast ratio | Test results | LCD test | Small-screen tests | Lagom home

Contrast ratio of S29E790C TEST 3

Contrast ratio 2140:1
Monitor model S29E790C TEST 3
Submitted 13 Jun 2015 00:37 CEST, by 89.156.*.*
Camera model Sony NEX-7
Processing remarks


Black
Screen photo
[open image]
Luminance 0.04 cd/m2
Luminance spread 0 cd/m2 (2 standard deviations)
Exposure value –3.4 stops   (aim for –2 to –3)
Exposure spread 0.14 stops
Area used for calculation 0.375 x 0.422
Camera settings Exposure time: 6   ISO: 400   F-number: 3.5
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 88 cd/m2
Luminance spread 4 cd/m2 (2 standard deviations)
Exposure value –2.24 stops   (aim for –2 to –3)
Exposure spread 0.06 stops
Area used for calculation 0.375 x 0.422
Camera settings Exposure time: 1/160   ISO: 400   F-number: 3.5
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.