Contrast ratio | 2.90554e+06:1 |
---|---|
Monitor model | |
Submitted | 03 Jul 2011 12:50 CEST, by 178.73.*.* |
Camera model | Nikon D50 |
Processing remarks | Warning: image file 1: automatic white balance can cause inaccuracies. |
Black | |
Screen photo |
|
Luminance | 0 cd/m2 |
Luminance spread | 0 cd/m2 (2 standard deviations) |
Exposure value | –22.89 stops (aim for –2 to –3) |
Exposure spread | 4.25 stops |
Area used for calculation | 0.708 x 0.798 |
Camera settings | Exposure time: 1/160 ISO: 800 F-number: 5 Focal length: 51 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 160 cd/m2 |
Luminance spread | 36 cd/m2 (2 standard deviations) |
Exposure value | –1.42 stops (aim for –2 to –3) |
Exposure spread | 0.33 stops |
Area used for calculation | 0.708 x 0.798 |
Camera settings | Exposure time: 1/160 ISO: 800 F-number: 5 Focal length: 51 mm (35 mm equivalent) Exposure compensation: 0 |
Black at screen edge | |
Screen photo |
|
Luminance | 66 cd/m2 |
Luminance spread | 133 cd/m2 (2 standard deviations) |
Exposure value | –2.69 stops (aim for –2 to –3) |
Exposure spread | 4.25 stops |
Area used for calculation | 0.708 x 0.798 |
Camera settings | Exposure time: 1/160 ISO: 800 F-number: 5 Focal length: 51 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.