Contrast ratio | 140:1 |
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Monitor model | |
Submitted | 30 Dec 2014 21:30 CET, by 216.165.*.* |
Camera model | Canon EOS REBEL T1i |
Processing remarks |
|
Black | |
Screen photo |
|
Luminance | 1.3 cd/m2 |
Luminance spread | 2.04 cd/m2 (2 standard deviations) |
Exposure value | –1.8 stops (aim for –2 to –3) |
Exposure spread | 3.04 stops |
Area used for calculation | 0.75 x 0.844 |
Camera settings | Exposure time: 1 ISO: 400 F-number: 4.6 Focal length: 54 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 181 cd/m2 |
Luminance spread | 43 cd/m2 (2 standard deviations) |
Exposure value | –3.3 stops (aim for –2 to –3) |
Exposure spread | 0.35 stops |
Area used for calculation | 0.75 x 0.844 |
Camera settings | Exposure time: 1/395 ISO: 400 F-number: 4.6 Focal length: 54 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.