Contrast ratio | 1:1 |
---|---|
Monitor model | |
Submitted | 28 Jun 2019 18:20 CEST, by 86.122.*.* |
Camera model | ALLVIEW P5Life |
Processing remarks | Warning: using the flash makes no sense. |
Black | |
Screen photo |
|
Luminance | 16 cd/m2 |
Luminance spread | 22 cd/m2 (2 standard deviations) |
Exposure value | –3.51 stops (aim for –2 to –3) |
Exposure spread | 2.37 stops |
Area used for calculation | 0.528 x 0.528 |
Camera settings | Exposure time: 1/25 ISO: 67 F-number: 2.4 Focal length: 0 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 17 cd/m2 |
Luminance spread | 24 cd/m2 (2 standard deviations) |
Exposure value | –3.54 stops (aim for –2 to –3) |
Exposure spread | 2.61 stops |
Area used for calculation | 0.528 x 0.528 |
Camera settings | Exposure time: 1/25 ISO: 63 F-number: 2.4 Focal length: 0 mm (35 mm equivalent) Exposure compensation: 0 |
Black at screen edge | |
Screen photo |
|
Luminance | 13 cd/m2 |
Luminance spread | 15 cd/m2 (2 standard deviations) |
Exposure value | –1.88 stops (aim for –2 to –3) |
Exposure spread | 1.74 stops |
Area used for calculation | 0.528 x 0.528 |
Camera settings | Exposure time: 1/17 ISO: 169 F-number: 2.4 Focal length: 0 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.