| Contrast ratio | 135:1 |
|---|---|
| Monitor model | |
| Submitted | 05 Apr 2021 16:07 CEST, by 111.125.*.* |
| Camera model | HUAWEI EVA-L19 |
| Processing remarks | Warning: image file 1: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation. |
| Black | |
| Screen photo |
|
| Luminance | 959926 cd/m2 |
| Luminance spread | 2.43961e+06 cd/m2 (2 standard deviations) |
| Exposure value | –10.07 stops (aim for –2 to –3) |
| Exposure spread | 4.25 stops |
| Area used for calculation | 0.358 x 0.477 |
| Camera settings | Exposure time: 1/99996336 ISO: 400 F-number: 2.2 Focal length: 27 mm (35 mm equivalent) Exposure compensation: 1 |
| White | |
| Screen photo |
|
| Luminance | 1.2983e+08 cd/m2 |
| Luminance spread | 4.30907e+07 cd/m2 (2 standard deviations) |
| Exposure value | –2.99 stops (aim for –2 to –3) |
| Exposure spread | 0.48 stops |
| Area used for calculation | 0.358 x 0.477 |
| Camera settings | Exposure time: 1/99996336 ISO: 400 F-number: 2.2 Focal length: 27 mm (35 mm equivalent) Exposure compensation: 0 |
![[open image]](upload/cr066/16696a.jpg){kind=link}
![[open image]](upload/cr066/16696b.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.