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

Contrast ratio results

Contrast ratio 735:1
Monitor model
Submitted 18 Jul 2010 16:13 CEST, by 109.61.*.*
Camera model Fujifilm FinePix S200EXR
Processing remarks

Note: image file 2: suggested exposure time: 1/220 s (Set EV to -1.5)

Black
Screen photo
[open image]
Luminance 0.18 cd/m2
Luminance spread 0.06 cd/m2 (2 standard deviations)
Exposure value –2.22 stops   (aim for –2 to –3)
Exposure spread 0.47 stops
Area used for calculation 0.89 x 0.89
Camera settings Exposure time: 4   ISO: 200   F-number: 2.8
Focal length: 61.6 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 133 cd/m2
Luminance spread 40 cd/m2 (2 standard deviations)
Exposure value –1 stops   (aim for –2 to –3)
Exposure spread 0.44 stops
Area used for calculation 0.89 x 0.89
Camera settings Exposure time: 1/79   ISO: 200   F-number: 2.8
Focal length: 61.6 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.