Contrast ratio | 41:1 |
---|---|
Monitor model | |
Submitted | 29 Jun 2018 04:42 CEST, by 24.0.*.* |
Camera model | samsung SM-G955U |
Processing remarks | Note: image file 1: suggested exposure time: 0.3 s (Set EV to -1.6) |
Black | |
Screen photo |
|
Luminance | 2.59 cd/m2 |
Luminance spread | 0.12 cd/m2 (2 standard deviations) |
Exposure value | –0.93 stops (aim for –2 to –3) |
Exposure spread | 0.07 stops |
Area used for calculation | 0.376 x 0.376 |
Camera settings | Exposure time: 1 ISO: 50 F-number: 1.7 Focal length: 26 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 106 cd/m2 |
Luminance spread | 13 cd/m2 (2 standard deviations) |
Exposure value | –1.22 stops (aim for –2 to –3) |
Exposure spread | 0.18 stops |
Area used for calculation | 0.336 x 0.501 |
Camera settings | Exposure time: 1/50 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.