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

Contrast ratio results for 飞利浦

Contrast ratio 363:1
Monitor model 飞利浦
Submitted 20 Jun 2018 10:37 CEST, by 115.228.*.*
Camera model HUAWEI BKL-AL00
Processing remarks

Warning: image file 1: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation.
Warning: image file 1: automatic white balance can cause inaccuracies.
Warning: image file 1: Underexposed. Please increase the shutter time.
Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation.
Warning: image file 2: automatic white balance can cause inaccuracies.
Warning: image file 2: Overexposed. Please decrease the shutter time.

Black
Screen photo
[open image]
Luminance 1.6362e+06 cd/m2
Luminance spread 2.65075e+06 cd/m2 (2 standard deviations)
Exposure value –8.73 stops   (aim for –2 to –3)
Exposure spread 3.25 stops
Area used for calculation 0.349 x 0.523
Camera settings Exposure time: 1/99996336   ISO: 400   F-number: 1.8
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 5.93288e+08 cd/m2
Luminance spread 1.05425e+08 cd/m2 (2 standard deviations)
Exposure value –0.22 stops   (aim for –2 to –3)
Exposure spread 0.26 stops
Area used for calculation 0.349 x 0.523
Camera settings Exposure time: 1/99996336   ISO: 400   F-number: 1.8
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.