A pressure sensor system for measuring the pressure of a corrosive media includes a silicon plate forming a diaphragm and a glass plate or ring bonded to said silicon plate with an opening over the diaphragm. The normal forces arising in a measuring gap perpendicular to the measuring surfaces are recorded with a recording unit and the height of the measuring gap is adjusted with a positioning unit and with positioning elements actuated by the positioning unit. The light source radiates pre-imaging light before the object is photographed, and radiates imaging light when the object is photographed. Selectively tobacco shortened filtered cigarettes include a filter covering, which is contiguous with a casing.