| Contrast ratio | 191:1 |
|---|---|
| Monitor model | |
| Submitted | 02 Nov 2018 22:55 CET, by 98.160.*.* |
| Camera model | LGE LM-V405 |
| Processing remarks | Note: image file 1: suggested exposure time: 1/6 s (Set EV to -1.3) |
| Black | |
| Screen photo |
|
| Luminance | 0.52 cd/m2 |
| Luminance spread | 0.38 cd/m2 (2 standard deviations) |
| Exposure value | –1.2 stops (aim for –2 to –3) |
| Exposure spread | 1.08 stops |
| Area used for calculation | 0.409 x 0.306 |
| Camera settings | Exposure time: 0.4 ISO: 400 F-number: 1.5 Focal length: 25 mm (35 mm equivalent) Exposure compensation: 0 |
| White | |
| Screen photo |
|
| Luminance | 100 cd/m2 |
| Luminance spread | 10 cd/m2 (2 standard deviations) |
| Exposure value | –0.94 stops (aim for –2 to –3) |
| Exposure spread | 0.14 stops |
| Area used for calculation | 0.409 x 0.306 |
| Camera settings | Exposure time: 1/400 ISO: 400 F-number: 1.5 Focal length: 25 mm (35 mm equivalent) Exposure compensation: 0 |
![[open image]](upload/cr049/12429a.jpg){kind=link}
![[open image]](upload/cr049/12429b.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.