Contrast ratio | 1436:1 |
---|---|
Monitor model | |
Submitted | 07 Nov 2014 04:45 CET, by 177.204.*.* |
Camera model | Sony NEX-F3 |
Processing remarks | Note: image file 1: suggested exposure time: 5.3 s (Set EV to +1.7) |
Black | |
Screen photo |
|
Luminance | 0.05 cd/m2 |
Luminance spread | 0 cd/m2 (2 standard deviations) |
Exposure value | –1.19 stops (aim for –2 to –3) |
Exposure spread | 0.1 stops |
Area used for calculation | 0.374 x 0.424 |
Camera settings | Exposure time: 13 ISO: 3200 F-number: 7.1 Focal length: 27 mm (35 mm equivalent) Exposure compensation: 3 |
White | |
Screen photo |
|
Luminance | 65 cd/m2 |
Luminance spread | 9 cd/m2 (2 standard deviations) |
Exposure value | –4.05 stops (aim for –2 to –3) |
Exposure spread | 0.19 stops |
Area used for calculation | 0.374 x 0.424 |
Camera settings | Exposure time: 1/50 ISO: 200 F-number: 7.1 Focal length: 27 mm (35 mm equivalent) Exposure compensation: -0.7 |
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.