| Contrast ratio | 519:1 |
|---|---|
| Monitor model | I-Inc AG191D |
| Submitted | 14 Jan 2012 16:17 CET, by 90.41.*.* |
| Camera model | Sony DSC-HX9V |
| Processing remarks | Warning: image file 1: could not determine angle of view; assuming 38 mm lens (35 mm equivalent). |
| Black | |
| Screen photo |
|
| Luminance | 0.22 cd/m2 |
| Luminance spread | 0.09 cd/m2 (2 standard deviations) |
| Exposure value | –3.39 stops (aim for –2 to –3) |
| Exposure spread | 0.57 stops |
| Area used for calculation | 0.528 x 0.528 |
| Camera settings | Exposure time: 1 ISO: 400 F-number: 3.3 Focal length: 0 mm (35 mm equivalent) Exposure compensation: 0 |
| White | |
| Screen photo |
|
| Luminance | 115 cd/m2 |
| Luminance spread | 46 cd/m2 (2 standard deviations) |
| Exposure value | –3.01 stops (aim for –2 to –3) |
| Exposure spread | 0.59 stops |
| Area used for calculation | 0.528 x 0.528 |
| Camera settings | Exposure time: 1/400 ISO: 400 F-number: 3.3 Focal length: 0 mm (35 mm equivalent) Exposure compensation: 0 |
![[open image]](upload/cr019/04863a.jpg){kind=link}
![[open image]](upload/cr019/04863b.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.