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

Contrast ratio results for AOC 2279

Contrast ratio 395:1 (edge: 395:1)
Monitor model AOC 2279
Submitted 11 Dec 2015 15:52 CET, by 114.34.*.*
Camera model Canon EOS M
Processing remarks

Warning: image file 1: automatic white balance can cause inaccuracies.
Note: image file 1: suggested exposure time: 0.3 s (Set EV to -1.8)
Warning: image file 2: automatic white balance can cause inaccuracies.
Warning: image file 3: automatic white balance can cause inaccuracies.
Note: image file 3: suggested exposure time: 0.3 s (Set EV to -1.8)

Black
Screen photo
[open image]
Luminance 0.53 cd/m2
Luminance spread 0.08 cd/m2 (2 standard deviations)
Exposure value –0.68 stops   (aim for –2 to –3)
Exposure spread 0.21 stops
Area used for calculation 0.485 x 0.545
Camera settings Exposure time: 1   ISO: 400   F-number: 2
Focal length: 34.9 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 211 cd/m2
Luminance spread 16 cd/m2 (2 standard deviations)
Exposure value –0.68 stops   (aim for –2 to –3)
Exposure spread 0.11 stops
Area used for calculation 0.485 x 0.545
Camera settings Exposure time: 1/395   ISO: 400   F-number: 2
Focal length: 34.9 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.53 cd/m2
Luminance spread 0.08 cd/m2 (2 standard deviations)
Exposure value –0.68 stops   (aim for –2 to –3)
Exposure spread 0.21 stops
Area used for calculation 0.485 x 0.545
Camera settings Exposure time: 1   ISO: 400   F-number: 2
Focal length: 34.9 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.