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

Contrast ratio results for t260

Contrast ratio 211:1
Monitor model t260
Submitted 10 Apr 2011 17:23 CEST, by 94.54.*.*
Camera model Nikon D300
Processing remarks

image file 3: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Note: image file 3: suggested exposure time: 1/160 s (Set EV to +1.3)
Warning: image file 3 is too bright to be a dark photo. Maybe you mixed up the files?

Black
Screen photo
[open image]
Luminance 0.72 cd/m2
Luminance spread 0.27 cd/m2 (2 standard deviations)
Exposure value –1.87 stops   (aim for –2 to –3)
Exposure spread 0.55 stops
Area used for calculation 0.375 x 0.423
Camera settings Exposure time: 1   ISO: 400   F-number: 3.5
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 151 cd/m2
Luminance spread 65 cd/m2 (2 standard deviations)
Exposure value –2.8 stops   (aim for –2 to –3)
Exposure spread 0.63 stops
Area used for calculation 0.375 x 0.423
Camera settings Exposure time: 1/400   ISO: 400   F-number: 3.5
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 74 cd/m2
Luminance spread 152 cd/m2 (2 standard deviations)
Exposure value –3.82 stops   (aim for –2 to –3)
Exposure spread 4.25 stops
Area used for calculation 0.375 x 0.423
Camera settings Exposure time: 1/400   ISO: 400   F-number: 3.5
Focal length: 27 mm   (35 mm equivalent)
Exposure compensation: 0
{adcode}

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.