Contrast ratio | 2645:1 |
---|---|
Monitor model | SM2253LW |
Submitted | 21 Feb 2021 20:35 CET, by 92.26.*.* |
Camera model | HUAWEI FIG-LX1 |
Processing remarks | Warning: image file 1: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation. |
Black | |
Screen photo |
|
Luminance | 922321 cd/m2 |
Luminance spread | 553168 cd/m2 (2 standard deviations) |
Exposure value | –7.49 stops (aim for –2 to –3) |
Exposure spread | 0.89 stops |
Area used for calculation | 0.376 x 0.376 |
Camera settings | Exposure time: 1/99996336 ISO: 2500 F-number: 2.2 Focal length: 26 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 2.43925e+09 cd/m2 |
Luminance spread | 2.42423e+08 cd/m2 (2 standard deviations) |
Exposure value | –1.08 stops (aim for –2 to –3) |
Exposure spread | 0.14 stops |
Area used for calculation | 0.376 x 0.376 |
Camera settings | Exposure time: 1/99996336 ISO: 80 F-number: 2.2 Focal length: 26 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.