Contrast ratio | 2693:1 |
---|---|
Monitor model | |
Submitted | 26 Dec 2020 09:35 CET, by 66.214.*.* |
Camera model | Google Pixel 4a 5G |
Processing remarks | image file 1: Warning: image includes screen edges or something that's not a monitor. Hold the camera close to the screen. |
Black | |
Screen photo |
|
Luminance | 0.01 cd/m2 |
Luminance spread | 0 cd/m2 (2 standard deviations) |
Exposure value | –4.16 stops (aim for –2 to –3) |
Exposure spread | 0.68 stops |
Area used for calculation | 0.361 x 0.361 |
Camera settings | Exposure time: 5 ISO: 395 F-number: 1.7 Focal length: 25 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 19 cd/m2 |
Luminance spread | 10 cd/m2 (2 standard deviations) |
Exposure value | –2.06 stops (aim for –2 to –3) |
Exposure spread | 0.82 stops |
Area used for calculation | 0.361 x 0.361 |
Camera settings | Exposure time: 1/125 ISO: 395 F-number: 1.7 Focal length: 25 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.