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

Contrast ratio results

Contrast ratio 383:1
Monitor model
Submitted 06 Jun 2018 15:08 CEST, by 90.228.*.*
Camera model Canon EOS 1000D
Processing remarks

Note: image file 1: suggested exposure time: 2.3 s (Set EV to -1.4)
Note: image file 2: suggested exposure time: 1/170 s (Set EV to -1.4)

Black
Screen photo
[open image]
Luminance 0.41 cd/m2
Luminance spread 0.1 cd/m2 (2 standard deviations)
Exposure value –1.06 stops   (aim for –2 to –3)
Exposure spread 0.35 stops
Area used for calculation 0.831 x 0.937
Camera settings Exposure time: 6.2   ISO: 400   F-number: 5
Focal length: 59.9 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 158 cd/m2
Luminance spread 54 cd/m2 (2 standard deviations)
Exposure value –1.12 stops   (aim for –2 to –3)
Exposure spread 0.5 stops
Area used for calculation 0.831 x 0.937
Camera settings Exposure time: 1/64   ISO: 400   F-number: 5
Focal length: 59.9 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.