Contrast ratio | 21:1 |
---|---|
Monitor model | |
Submitted | 29 Jun 2018 04:52 CEST, by 24.0.*.* |
Camera model | samsung SM-G955U |
Processing remarks | Note: image file 2: suggested exposure time: 1/81 s (Set EV to -1.4) |
Black | |
Screen photo |
|
Luminance | 3.36 cd/m2 |
Luminance spread | 0.22 cd/m2 (2 standard deviations) |
Exposure value | –1.56 stops (aim for –2 to –3) |
Exposure spread | 0.09 stops |
Area used for calculation | 0.376 x 0.376 |
Camera settings | Exposure time: 0.5 ISO: 50 F-number: 1.7 Focal length: 26 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 71 cd/m2 |
Luminance spread | 5 cd/m2 (2 standard deviations) |
Exposure value | –1.07 stops (aim for –2 to –3) |
Exposure spread | 0.11 stops |
Area used for calculation | 0.376 x 0.376 |
Camera settings | Exposure time: 1/30 ISO: 50 F-number: 1.7 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.