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

Contrast ratio of Dell XPS 15 (9550, 1920x1080)

Contrast ratio 1944:1
Monitor model Dell XPS 15 (9550, 1920x1080)
Submitted 06 Dec 2016 06:22 CET, by 73.231.*.*
Camera model Fujifilm X-M1
Processing remarks


Black
Screen photo
[open image]
Luminance 0.17 cd/m2
Luminance spread 0.01 cd/m2 (2 standard deviations)
Exposure value –3.3 stops   (aim for –2 to –3)
Exposure spread 0.09 stops
Area used for calculation 0.608 x 0.567
Camera settings Exposure time: 1   ISO: 400   F-number: 2.8
Focal length: 41 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 330 cd/m2
Luminance spread 28 cd/m2 (2 standard deviations)
Exposure value –0.98 stops   (aim for –2 to –3)
Exposure spread 0.12 stops
Area used for calculation 0.566 x 0.649
Camera settings Exposure time: 1/388   ISO: 400   F-number: 2.8
Focal length: 41 mm   (35 mm equivalent)
Exposure compensation: 0
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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.