Contrast ratio | 734:1 |
---|---|
Monitor model | |
Submitted | 01 May 2019 21:57 CEST, by 109.117.*.* |
Camera model | Nikon COOLPIX P1 |
Processing remarks | Note: image file 1: suggested exposure time: 3.9 s (Set EV to -0.0) |
Black | |
Screen photo |
|
Luminance | 0.08 cd/m2 |
Luminance spread | 0.03 cd/m2 (2 standard deviations) |
Exposure value | –1.46 stops (aim for –2 to –3) |
Exposure spread | 0.62 stops |
Area used for calculation | 0.549 x 0.549 |
Camera settings | Exposure time: 8 ISO: 400 F-number: 2.8 Focal length: 38 mm (35 mm equivalent) Exposure compensation: 1 |
White | |
Screen photo |
|
Luminance | 56 cd/m2 |
Luminance spread | 10 cd/m2 (2 standard deviations) |
Exposure value | –2.5 stops (aim for –2 to –3) |
Exposure spread | 0.27 stops |
Area used for calculation | 0.549 x 0.549 |
Camera settings | Exposure time: 1/189 ISO: 400 F-number: 2.8 Focal length: 38 mm (35 mm equivalent) Exposure compensation: -1.3 |
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.