| Contrast ratio | 710:1 |
|---|---|
| Monitor model | |
| Submitted | 27 Apr 2024 18:30 CEST, by 112.205.*.* |
| Camera model | samsung SM-S901E |
| Processing remarks | Note: image file 1: suggested exposure time: 3.1 s (Set EV to -0.7) |
| Black | |
| Screen photo |
|
| Luminance | 0.07 cd/m2 |
| Luminance spread | 0.02 cd/m2 (2 standard deviations) |
| Exposure value | –0.83 stops (aim for –2 to –3) |
| Exposure spread | 0.38 stops |
| Area used for calculation | 0.997 x 0.997 |
| Camera settings | Exposure time: 10 ISO: 400 F-number: 2.4 Focal length: 69 mm (35 mm equivalent) Exposure compensation: 1 |
| White | |
| Screen photo |
|
| Luminance | 49 cd/m2 |
| Luminance spread | 11 cd/m2 (2 standard deviations) |
| Exposure value | –2.88 stops (aim for –2 to –3) |
| Exposure spread | 0.31 stops |
| Area used for calculation | 0.188 x 0.188 |
| Camera settings | Exposure time: 1/350 ISO: 400 F-number: 2.2 Focal length: 13 mm (35 mm equivalent) Exposure compensation: -1.7 |
![[open image]](upload/cr079/19977a.jpg){kind=link}
![[open image]](upload/cr079/19977b.jpg){kind=link}
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.