| Contrast ratio | 510:1 |
|---|---|
| Monitor model | Horize w650sr from Logical Blue One |
| Submitted | 07 Mar 2014 12:12 CET, by 122.104.*.* |
| Camera model | Nikon COOLPIX L310 |
| Processing remarks | Warning: Image F-number settings are not the same. |
| Black | |
| Screen photo |
|
| Luminance | 0.33 cd/m2 |
| Luminance spread | 0.13 cd/m2 (2 standard deviations) |
| Exposure value | –2.97 stops (aim for –2 to –3) |
| Exposure spread | 0.57 stops |
| Area used for calculation | 0.361 x 0.361 |
| Camera settings | Exposure time: 1/5 ISO: 1600 F-number: 3.1 Focal length: 25 mm (35 mm equivalent) Exposure compensation: -1 |
| White | |
| Screen photo |
|
| Luminance | 167 cd/m2 |
| Luminance spread | 42 cd/m2 (2 standard deviations) |
| Exposure value | –2.27 stops (aim for –2 to –3) |
| Exposure spread | 0.36 stops |
| Area used for calculation | 0.361 x 0.361 |
| Camera settings | Exposure time: 1/200 ISO: 1600 F-number: 8.7 Focal length: 25 mm (35 mm equivalent) Exposure compensation: -1 |
![[open image]](upload/cr029/07415a.jpg){kind=link}
![[open image]](upload/cr029/07415b.jpg){kind=link}
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.