Contrast ratio | 1.01371e+06:1 (edge: 778331:1) |
---|---|
Monitor model | |
Submitted | 28 Sep 2016 18:30 CEST, by 85.23.*.* |
Camera model | Nikon D750 |
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 cd/m2 |
Luminance spread | 0.01 cd/m2 (2 standard deviations) |
Exposure value | –4.99 stops (aim for –2 to –3) |
Exposure spread | 4.25 stops |
Area used for calculation | 0.207 x 0.308 |
Camera settings | Exposure time: 6 ISO: 1600 F-number: 4 Focal length: 16 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 4534 cd/m2 |
Luminance spread | 6582 cd/m2 (2 standard deviations) |
Exposure value | –1.58 stops (aim for –2 to –3) |
Exposure spread | 2.65 stops |
Area used for calculation | 0.333 x 0.375 |
Camera settings | Exposure time: 1/400 ISO: 100 F-number: 6.3 Focal length: 24 mm (35 mm equivalent) Exposure compensation: 0 |
Black at screen edge | |
Screen photo |
|
Luminance | 0.01 cd/m2 |
Luminance spread | 0.01 cd/m2 (2 standard deviations) |
Exposure value | –4.61 stops (aim for –2 to –3) |
Exposure spread | 3.42 stops |
Area used for calculation | 0.217 x 0.264 |
Camera settings | Exposure time: 6 ISO: 1600 F-number: 4 Focal length: 16 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.