Contrast ratio | 758:1 |
---|---|
Monitor model | |
Submitted | 06 Jul 2020 16:29 CEST, by 84.209.*.* |
Camera model | samsung SM-G973F |
Processing remarks | Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation. |
Black | |
Screen photo |
|
Luminance | 0.25 cd/m2 |
Luminance spread | 0.08 cd/m2 (2 standard deviations) |
Exposure value | –2.3 stops (aim for –2 to –3) |
Exposure spread | 0.49 stops |
Area used for calculation | 0.376 x 0.376 |
Camera settings | Exposure time: 1 ISO: 400 F-number: 2.4 Focal length: 26 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 190 cd/m2 |
Luminance spread | 17 cd/m2 (2 standard deviations) |
Exposure value | –2.28 stops (aim for –2 to –3) |
Exposure spread | 0.13 stops |
Area used for calculation | 0.376 x 0.376 |
Camera settings | Exposure time: 1/750 ISO: 400 F-number: 2.4 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.