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

Contrast ratio results for crossover 2730md led

Contrast ratio 674:1
Monitor model crossover 2730md led
Submitted 03 Apr 2015 16:28 CEST, by 185.52.*.*
Camera model Nikon D7000
Processing remarks

image file 3: Warning: image includes screen edges or something that's not a monitor. Hold the camera close to the screen.
Warning: image file 3 is too bright to be a dark photo. Maybe you mixed up the files?

Black
Screen photo
[open image]
Luminance 0.21 cd/m2
Luminance spread 0.09 cd/m2 (2 standard deviations)
Exposure value –1.99 stops   (aim for –2 to –3)
Exposure spread 0.63 stops
Area used for calculation 0.721 x 0.816
Camera settings Exposure time: 2   ISO: 800   F-number: 4
Focal length: 52 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 145 cd/m2
Luminance spread 39 cd/m2 (2 standard deviations)
Exposure value –2.24 stops   (aim for –2 to –3)
Exposure spread 0.39 stops
Area used for calculation 0.721 x 0.816
Camera settings Exposure time: 1/400   ISO: 800   F-number: 4
Focal length: 52 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 121 cd/m2
Luminance spread 110 cd/m2 (2 standard deviations)
Exposure value –2.5 stops   (aim for –2 to –3)
Exposure spread 1.42 stops
Area used for calculation 0.721 x 0.816
Camera settings Exposure time: 1/400   ISO: 800   F-number: 4
Focal length: 52 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.