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

Contrast ratio results

Contrast ratio 1627:1 (edge: 1011:1)
Monitor model
Submitted 26 Mar 2018 04:43 CEST, by 216.239.*.*
Camera model SAMSUNG WB350F/WB351F/WB352F
Processing remarks


Black
Screen photo
[open image]
Luminance 0.26 cd/m2
Luminance spread 0.02 cd/m2 (2 standard deviations)
Exposure value –2.7 stops   (aim for –2 to –3)
Exposure spread 0.13 stops
Area used for calculation 0.332 x 0.332
Camera settings Exposure time: 1   ISO: 400   F-number: 2.8
Focal length: 23 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 418 cd/m2
Luminance spread 66 cd/m2 (2 standard deviations)
Exposure value –1.04 stops   (aim for –2 to –3)
Exposure spread 0.23 stops
Area used for calculation 0.332 x 0.332
Camera settings Exposure time: 1/512   ISO: 400   F-number: 2.8
Focal length: 23 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.41 cd/m2
Luminance spread 0.06 cd/m2 (2 standard deviations)
Exposure value –2.02 stops   (aim for –2 to –3)
Exposure spread 0.2 stops
Area used for calculation 0.332 x 0.332
Camera settings Exposure time: 1   ISO: 400   F-number: 2.8
Focal length: 23 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.