| Contrast ratio | 1383:1 |
|---|---|
| Monitor model | Acer XF270HUAbmiidprzx |
| Submitted | 26 Oct 2017 23:10 CEST, by 93.103.*.* |
| Camera model | Nikon 1 S2 |
| Processing remarks | Note: image file 1: suggested exposure time: 4.0 s (Set EV to +3.7) |
| Black | |
| Screen photo |
|
| Luminance | 0.3 cd/m2 |
| Luminance spread | 0.07 cd/m2 (2 standard deviations) |
| Exposure value | –1.18 stops (aim for –2 to –3) |
| Exposure spread | 0.33 stops |
| Area used for calculation | 0.917 x 1 |
| Camera settings | Exposure time: 10 ISO: 400 F-number: 5.6 Focal length: 66 mm (35 mm equivalent) Exposure compensation: 5 |
| White | |
| Screen photo |
|
| Luminance | 409 cd/m2 |
| Luminance spread | 54 cd/m2 (2 standard deviations) |
| Exposure value | –1.39 stops (aim for –2 to –3) |
| Exposure spread | 0.19 stops |
| Area used for calculation | 0.917 x 1 |
| Camera settings | Exposure time: 1/160 ISO: 400 F-number: 5.6 Focal length: 66 mm (35 mm equivalent) Exposure compensation: 1 |
![[open image]](upload/cr044/11214a.jpg){kind=link}
![[open image]](upload/cr044/11214b.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.