|Submitted||09 Sep 2014 07:13 CEST, by 173.183.*.*|
|Camera model||Canon EOS REBEL T2i|
Warning: Image focal lengths/zoom levels are not the same.
|Luminance spread||0.01 cd/m2 (2 standard deviations)|
|Exposure value||–2.33 stops (aim for –2 to –3)|
|Exposure spread||0.32 stops|
|Area used for calculation||0.437 x 0.492|
|Camera settings||Exposure time: 10.4 ISO: 400 F-number: 3.5|
Focal length: 31.5 mm (35 mm equivalent)
Exposure compensation: 2
|Luminance spread||27 cd/m2 (2 standard deviations)|
|Exposure value||–0.82 stops (aim for –2 to –3)|
|Exposure spread||0.13 stops|
|Area used for calculation||0.393 x 0.443|
|Camera settings||Exposure time: 1/197 ISO: 400 F-number: 3.5|
Focal length: 28.3 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.