| Contrast ratio | 339:1 (edge: 341:1) |
|---|---|
| Monitor model | fujitsu |
| Submitted | 12 Jun 2012 07:27 CEST, by 122.104.*.* |
| Camera model | Olympus SP500UZ |
| Processing remarks | Note: image file 1: suggested exposure time: 4.3 s (Set EV to -1.2) |
| Black | |
| Screen photo |
|
| Luminance | 0.34 cd/m2 |
| Luminance spread | 0.07 cd/m2 (2 standard deviations) |
| Exposure value | –1.28 stops (aim for –2 to –3) |
| Exposure spread | 0.31 stops |
| Area used for calculation | 0.55 x 0.55 |
| Camera settings | Exposure time: 10 ISO: 80 F-number: 2.8 Focal length: 38.1 mm (35 mm equivalent) Exposure compensation: 0 |
| White | |
| Screen photo |
|
| Luminance | 117 cd/m2 |
| Luminance spread | 14 cd/m2 (2 standard deviations) |
| Exposure value | –1.52 stops (aim for –2 to –3) |
| Exposure spread | 0.17 stops |
| Area used for calculation | 0.55 x 0.55 |
| Camera settings | Exposure time: 1/40 ISO: 80 F-number: 2.8 Focal length: 38.1 mm (35 mm equivalent) Exposure compensation: 0 |
| Black at screen edge | |
| Screen photo |
|
| Luminance | 0.34 cd/m2 |
| Luminance spread | 0.08 cd/m2 (2 standard deviations) |
| Exposure value | –1.29 stops (aim for –2 to –3) |
| Exposure spread | 0.33 stops |
| Area used for calculation | 0.55 x 0.55 |
| Camera settings | Exposure time: 10 ISO: 80 F-number: 2.8 Focal length: 38.1 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.