Low IR range

When choosing a place for the camera, it is important to choose so that foreign objects (gutters, balcony, beams, etc.) do not interfere with the shot and the camera is not too close to the wall. You will then create so-called "burned-in spots" in the scene. These spots will be intensely illuminated by the IR illumination and other parts of the shot will darken due to the shutter's attempt to compensate for such extreme differences in the scene. This can result in a poor quality and grainy image. The WDR function can deal with this phenomenon to some extent, but if the difference is large, the only solution is to reposition and reorient the camera.

In the picture below we show a misplaced camera, where a nearby wall and beam create "burnt spots" and the effect of reduced IR range described above. The solution in this case is to move the camera away from the wall and undercut it.