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

Contrast ratio of Wacom Cintiq 21UX 2nd Generation

Contrast ratio 377:1 (edge: 363:1)
Monitor model Wacom Cintiq 21UX 2nd Generation
Submitted 04 Sep 2010 21:13 CEST, by 60.242.*.*
Camera model Nikon D700
Processing remarks

Note: image file 1: suggested exposure time: 0.3 s (Set EV to -1.8)
Note: image file 3: suggested exposure time: 0.3 s (Set EV to -1.9)

Black
Screen photo
[open image]
Luminance 0.26 cd/m2
Luminance spread 0.04 cd/m2 (2 standard deviations)
Exposure value –0.7 stops   (aim for –2 to –3)
Exposure spread 0.25 stops
Area used for calculation 0.694 x 0.782
Camera settings Exposure time: 1   ISO: 400   F-number: 1.4
Focal length: 50 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 97 cd/m2
Luminance spread 21 cd/m2 (2 standard deviations)
Exposure value –1.1 stops   (aim for –2 to –3)
Exposure spread 0.32 stops
Area used for calculation 0.694 x 0.782
Camera settings Exposure time: 1/500   ISO: 400   F-number: 1.4
Focal length: 50 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.27 cd/m2
Luminance spread 0.05 cd/m2 (2 standard deviations)
Exposure value –0.64 stops   (aim for –2 to –3)
Exposure spread 0.27 stops
Area used for calculation 0.694 x 0.782
Camera settings Exposure time: 1   ISO: 400   F-number: 1.4
Focal length: 50 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.