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

Contrast ratio results for Dell

Contrast ratio 43:1
Monitor model Dell
Submitted 02 Jul 2020 11:50 CEST, by 80.219.*.*
Camera model Nikon D5600
Processing remarks

Warning: image file 1: camera was zoomed in too much.
Note: image file 1: suggested exposure time: 0.6 s (Set EV to +1.4)
Warning: image file 2: camera was zoomed in too much.
Warning: image file 2: Underexposed. Please increase the shutter time.
Note: image file 2: suggested exposure time: 1/66 s (Set EV to +1.6)

Black
Screen photo
[open image]
Luminance 1.84 cd/m2
Luminance spread 1.49 cd/m2 (2 standard deviations)
Exposure value –3.87 stops   (aim for –2 to –3)
Exposure spread 1.24 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 1/4   ISO: 400   F-number: 5.6
Focal length: 82 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 78 cd/m2
Luminance spread 20 cd/m2 (2 standard deviations)
Exposure value –4.1 stops   (aim for –2 to –3)
Exposure spread 0.36 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 1/200   ISO: 400   F-number: 5.6
Focal length: 82 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.