Contrast ratio | 93:1 |
---|---|
Monitor model | |
Submitted | 15 Feb 2011 15:33 CET, by 86.135.*.* |
Camera model | Canon EOS 350D DIGITAL |
Processing remarks | Warning: image file 1: camera was zoomed in too much. |
Black | |
Screen photo |
|
Luminance | 0.04 cd/m2 |
Luminance spread | 0.02 cd/m2 (2 standard deviations) |
Exposure value | –4 stops (aim for –2 to –3) |
Exposure spread | 0.78 stops |
Area used for calculation | 1 x 1 |
Camera settings | Exposure time: 10 ISO: 400 F-number: 5.6 Focal length: 85.9 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 3.87 cd/m2 |
Luminance spread | 0.53 cd/m2 (2 standard deviations) |
Exposure value | –0.41 stops (aim for –2 to –3) |
Exposure spread | 0.2 stops |
Area used for calculation | 1 x 1 |
Camera settings | Exposure time: 1.3 ISO: 400 F-number: 5.6 Focal length: 85.9 mm (35 mm equivalent) Exposure compensation: 2 |
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.