My nikon D5100 blow air from viewfinder
i've recently bought a new Nikon D5100 camera with 18-105 vr kit len and i've noticed that when going down with the zoom ring, also from 35 to 18 mm, air blows through the viewfinder to my eye. Somebody found the same problem? The vendor replaced initially a camera with another, that has the same, identical problem. Maybe it's a problem related to quality building? It's strange that Nikon make a similar mistake.