Contrast ratio | 3659:1 |
---|---|
Monitor model | |
Submitted | 07 Nov 2017 06:13 CET, by 73.241.*.* |
Camera model | Nikon D80 |
Processing remarks | Warning: image file 1: Underexposed. Please increase the shutter time. |
Black | |
Screen photo |
|
Luminance | 0.03 cd/m2 |
Luminance spread | 0.04 cd/m2 (2 standard deviations) |
Exposure value | –7.64 stops (aim for –2 to –3) |
Exposure spread | 2.64 stops |
Area used for calculation | 0.459 x 0.514 |
Camera settings | Exposure time: 0.5 ISO: 400 F-number: 3.8 Focal length: 33 mm (35 mm equivalent) Exposure compensation: -4 |
White | |
Screen photo |
|
Luminance | 114 cd/m2 |
Luminance spread | 38 cd/m2 (2 standard deviations) |
Exposure value | –3.44 stops (aim for –2 to –3) |
Exposure spread | 0.49 stops |
Area used for calculation | 0.459 x 0.514 |
Camera settings | Exposure time: 1/400 ISO: 400 F-number: 3.8 Focal length: 33 mm (35 mm equivalent) Exposure compensation: -4 |
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.