Contrast ratio | 4:1 |
---|---|
Monitor model | |
Submitted | 19 May 2020 10:18 CEST, by 84.104.*.* |
Camera model | HUAWEI MAR-LX1A |
Processing remarks | Warning: image file 1: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation. |
Black | |
Screen photo |
|
Luminance | 8.32962e+07 cd/m2 |
Luminance spread | 1.18375e+08 cd/m2 (2 standard deviations) |
Exposure value | –3.06 stops (aim for –2 to –3) |
Exposure spread | 2.56 stops |
Area used for calculation | 0.347 x 0.537 |
Camera settings | Exposure time: 1/99996336 ISO: 400 F-number: 1.8 Focal length: 27 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 3.38663e+08 cd/m2 |
Luminance spread | 6.7579e+07 cd/m2 (2 standard deviations) |
Exposure value | –1.03 stops (aim for –2 to –3) |
Exposure spread | 0.29 stops |
Area used for calculation | 0.347 x 0.537 |
Camera settings | Exposure time: 1/99996336 ISO: 400 F-number: 1.8 Focal length: 27 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.