Contrast ratio | 2881:1 |
---|---|
Monitor model | |
Submitted | 17 Oct 2011 03:37 CEST, by 76.113.*.* |
Camera model | Panasonic DMC-LS80 |
Processing remarks | Warning: image file 1: automatic white balance can cause inaccuracies. |
Black | |
Screen photo |
|
Luminance | 0.06 cd/m2 |
Luminance spread | 0.03 cd/m2 (2 standard deviations) |
Exposure value | –6.72 stops (aim for –2 to –3) |
Exposure spread | 0.78 stops |
Area used for calculation | 0.434 x 0.601 |
Camera settings | Exposure time: 1/8 ISO: 800 F-number: 2.8 Focal length: 33 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 183 cd/m2 |
Luminance spread | 4 cd/m2 (2 standard deviations) |
Exposure value | –0.13 stops (aim for –2 to –3) |
Exposure spread | 0.03 stops |
Area used for calculation | 0.472 x 0.486 |
Camera settings | Exposure time: 1/30 ISO: 100 F-number: 2.8 Focal length: 33 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.