| Contrast ratio | 3810:1 |
|---|---|
| Monitor model | LG 915FT plus (CRT) |
| Submitted | 29 Feb 2008 20:27 CET, by 88.195.*.* |
| Camera model | Panasonic DMC-FZ30 |
| Processing remarks | Warning: image file 1: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. |
| Black | |
| Screen photo |
|
| Luminance | 0 cd/m2 |
| Luminance spread | 0 cd/m2 (2 standard deviations) |
| Exposure value | –4.98 stops (aim for –2 to –3) |
| Exposure spread | 0.23 stops |
| Area used for calculation | 0.51 x 0.51 |
| Camera settings | Exposure time: 30 ISO: 200 F-number: 2.8 Focal length: 35 mm (35 mm equivalent) Exposure compensation: 0 |
| White | |
| Screen photo |
|
| Luminance | 14 cd/m2 |
| Luminance spread | 2 cd/m2 (2 standard deviations) |
| Exposure value | –2.31 stops (aim for –2 to –3) |
| Exposure spread | 0.21 stops |
| Area used for calculation | 0.51 x 0.51 |
| Camera settings | Exposure time: 1/20 ISO: 200 F-number: 2.8 Focal length: 35 mm (35 mm equivalent) Exposure compensation: 0 |
![[open image]](upload/cr000/00105a.jpg){kind=link}
![[open image]](upload/cr000/00105b.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.