Contrast ratio | 679:1 |
---|---|
Monitor model | |
Submitted | 31 Aug 2015 00:02 CEST, by 77.230.*.* |
Camera model | Nikon D750 |
Processing remarks | Note: image file 2: suggested exposure time: 1/230 s (Set EV to +0.8) |
Black | |
Screen photo |
|
Luminance | 0.26 cd/m2 |
Luminance spread | 0.11 cd/m2 (2 standard deviations) |
Exposure value | –1.76 stops (aim for –2 to –3) |
Exposure spread | 0.62 stops |
Area used for calculation | 0.389 x 0.437 |
Camera settings | Exposure time: 5 ISO: 400 F-number: 4.5 Focal length: 28 mm (35 mm equivalent) Exposure compensation: 2 |
White | |
Screen photo |
|
Luminance | 174 cd/m2 |
Luminance spread | 21 cd/m2 (2 standard deviations) |
Exposure value | –1.32 stops (aim for –2 to –3) |
Exposure spread | 0.17 stops |
Area used for calculation | 0.389 x 0.437 |
Camera settings | Exposure time: 1/100 ISO: 400 F-number: 4.5 Focal length: 28 mm (35 mm equivalent) Exposure compensation: 2 |
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.