Contrast ratio | 152:1 |
---|---|
Monitor model | Samsung LTN154X3 |
Submitted | 25 Jul 2012 23:33 CEST, by 188.6.*.* |
Camera model | Panasonic DMC-FZ28 |
Processing remarks | Note: image file 1: suggested exposure time: 0.3 s (Set EV to -1.1) |
Black | |
Screen photo |
|
Luminance | 1.06 cd/m2 |
Luminance spread | 1.18 cd/m2 (2 standard deviations) |
Exposure value | –1.4 stops (aim for –2 to –3) |
Exposure spread | 1.81 stops |
Area used for calculation | 0.39 x 0.39 |
Camera settings | Exposure time: 0.6 ISO: 400 F-number: 2.8 Focal length: 27 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 160 cd/m2 |
Luminance spread | 25 cd/m2 (2 standard deviations) |
Exposure value | –2.07 stops (aim for –2 to –3) |
Exposure spread | 0.23 stops |
Area used for calculation | 0.39 x 0.39 |
Camera settings | Exposure time: 1/400 ISO: 400 F-number: 2.8 Focal length: 27 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.