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

Contrast ratio results for samsung sync master cx500s

Contrast ratio 97:1
Monitor model samsung sync master cx500s
Submitted 27 Nov 2014 06:26 CET, by 49.213.*.*
Camera model Canon EOS 1100D
Processing remarks

Warning: image file 1: automatic white balance can cause inaccuracies.
Warning: image file 2: automatic white balance can cause inaccuracies.
Warning: image file 3: automatic white balance can cause inaccuracies.
Warning: Image F-number settings are not the same.
Warning: image file 3 is too bright to be a dark photo. Maybe you mixed up the files?

Black
Screen photo
[open image]
Luminance 1.42 cd/m2
Luminance spread 1.43 cd/m2 (2 standard deviations)
Exposure value –2.65 stops   (aim for –2 to –3)
Exposure spread 1.6 stops
Area used for calculation 0.918 x 1
Camera settings Exposure time: 0.3   ISO: 800   F-number: 5
Focal length: 66.1 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 137 cd/m2
Luminance spread 36 cd/m2 (2 standard deviations)
Exposure value –2.29 stops   (aim for –2 to –3)
Exposure spread 0.38 stops
Area used for calculation 0.918 x 1
Camera settings Exposure time: 1/128   ISO: 800   F-number: 7
Focal length: 66.1 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 138 cd/m2
Luminance spread 38 cd/m2 (2 standard deviations)
Exposure value –2.28 stops   (aim for –2 to –3)
Exposure spread 0.4 stops
Area used for calculation 0.918 x 1
Camera settings Exposure time: 1/128   ISO: 800   F-number: 7
Focal length: 66.1 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.