Contrast ratio | 2798:1 |
---|---|
Monitor model | |
Submitted | 15 Jul 2022 23:46 CEST, by 187.21.*.* |
Camera model | samsung SM-F415F |
Processing remarks | Warning: image file 1: automatic white balance can cause inaccuracies. |
Black | |
Screen photo |
|
Luminance | 0 cd/m2 |
Luminance spread | 0 cd/m2 (2 standard deviations) |
Exposure value | –12.97 stops (aim for –2 to –3) |
Exposure spread | 0.64 stops |
Area used for calculation | 0.399 x 0.29 |
Camera settings | Exposure time: 1 ISO: 80 F-number: 1.8 Focal length: 24 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 1.21 cd/m2 |
Luminance spread | 0.18 cd/m2 (2 standard deviations) |
Exposure value | –0.52 stops (aim for –2 to –3) |
Exposure spread | 0.21 stops |
Area used for calculation | 0.484 x 0.254 |
Camera settings | Exposure time: 1 ISO: 160 F-number: 1.8 Focal length: 24 mm (35 mm equivalent) Exposure compensation: 13 |
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.