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

Contrast ratio results

Contrast ratio 1813:1
Monitor model
Submitted 12 Dec 2018 23:29 CET, by 89.64.*.*
Camera model Sony ILCE-6300
Processing remarks

image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Note: image file 2: suggested exposure time: 7.6 s (Set EV to +3.0)

Black
Screen photo
[open image]
Luminance 0.06 cd/m2
Luminance spread 0.01 cd/m2 (2 standard deviations)
Exposure value –0.52 stops   (aim for –2 to –3)
Exposure spread 0.23 stops
Area used for calculation 0.333 x 0.376
Camera settings Exposure time: 30   ISO: 400   F-number: 3.5
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 5
White
Screen photo
[open image]
Luminance 111 cd/m2
Luminance spread 22 cd/m2 (2 standard deviations)
Exposure value –1.92 stops   (aim for –2 to –3)
Exposure spread 0.28 stops
Area used for calculation 0.333 x 0.376
Camera settings Exposure time: 1/160   ISO: 400   F-number: 3.5
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: -0.7

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.