Contrast ratio | 3679:1 |
---|---|
Monitor model | |
Submitted | 28 Apr 2020 03:42 CEST, by 154.185.*.* |
Camera model | Apple iPhone 6s |
Processing remarks | Warning: image file 1: automatic white balance can cause inaccuracies. |
Black | |
Screen photo |
|
Luminance | 0.24 cd/m2 |
Luminance spread | 0.33 cd/m2 (2 standard deviations) |
Exposure value | –5.85 stops (aim for –2 to –3) |
Exposure spread | 2.41 stops |
Area used for calculation | 0.37 x 0.593 |
Camera settings | Exposure time: 1/17 ISO: 500 F-number: 2.2 Focal length: 29 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 896 cd/m2 |
Luminance spread | 29 cd/m2 (2 standard deviations) |
Exposure value | –0.15 stops (aim for –2 to –3) |
Exposure spread | 0.05 stops |
Area used for calculation | 0.539 x 0.321 |
Camera settings | Exposure time: 1/60 ISO: 25 F-number: 2.2 Focal length: 29 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.