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

Contrast ratio results

Contrast ratio 372:1
Monitor model
Submitted 25 Feb 2018 20:44 CET, by 2.39.*.*
Camera model Nikon D610
Processing remarks

Note: image file 2: suggested exposure time: 1/290 s (Set EV to -1.5)

Black
Screen photo
[open image]
Luminance 0.23 cd/m2
Luminance spread 0.13 cd/m2 (2 standard deviations)
Exposure value –2.2 stops   (aim for –2 to –3)
Exposure spread 0.81 stops
Area used for calculation 0.694 x 0.781
Camera settings Exposure time: 1.6   ISO: 400   F-number: 2.8
Focal length: 50 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 85 cd/m2
Luminance spread 28 cd/m2 (2 standard deviations)
Exposure value –0.99 stops   (aim for –2 to –3)
Exposure spread 0.49 stops
Area used for calculation 0.694 x 0.781
Camera settings Exposure time: 1/100   ISO: 400   F-number: 2.8
Focal length: 50 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.