Contrast ratio | 28003:1 |
---|---|
Monitor model | Apple Cinema 24" |
Submitted | 13 Oct 2016 01:00 CEST, by 75.118.*.* |
Camera model | Canon EOS 6D |
Processing remarks | image file 1: Warning: image includes screen edges or something that's not a monitor. Hold the camera close to the screen. |
Black | |
Screen photo |
|
Luminance | 0.01 cd/m2 |
Luminance spread | 0.02 cd/m2 (2 standard deviations) |
Exposure value | –15.87 stops (aim for –2 to –3) |
Exposure spread | 4.25 stops |
Area used for calculation | 0.507 x 0.57 |
Camera settings | Exposure time: 1/166 ISO: 800 F-number: 5 Focal length: 36.5 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 208 cd/m2 |
Luminance spread | 24 cd/m2 (2 standard deviations) |
Exposure value | –1.09 stops (aim for –2 to –3) |
Exposure spread | 0.16 stops |
Area used for calculation | 0.507 x 0.57 |
Camera settings | Exposure time: 1/166 ISO: 800 F-number: 5 Focal length: 36.5 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.