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

Contrast ratio results for Vizio

Contrast ratio 294:1
Monitor model Vizio
Submitted 05 May 2017 03:43 CEST, by 66.227.*.*
Camera model samsung SM-G935V
Processing remarks

Note: image file 1: suggested exposure time: 1/4 s (Set EV to +1.2)
Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation.
image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.

Black
Screen photo
[open image]
Luminance 0.49 cd/m2
Luminance spread 0.17 cd/m2 (2 standard deviations)
Exposure value –3.65 stops   (aim for –2 to –3)
Exposure spread 0.49 stops
Area used for calculation 0.345 x 0.46
Camera settings Exposure time: 1/10   ISO: 400   F-number: 1.7
Focal length: 26 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 144 cd/m2
Luminance spread 110 cd/m2 (2 standard deviations)
Exposure value –1.68 stops   (aim for –2 to –3)
Exposure spread 1.16 stops
Area used for calculation 0.345 x 0.46
Camera settings Exposure time: 1/750   ISO: 400   F-number: 1.7
Focal length: 26 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.