The classic cameras often have a cylindrical shape or a shape of a parallelepiped. The cameras of this form are called classic because their appearance is familiar to everyone. In the case when one needs to install fake cameras, for one or another reason, are used models of this easily recognizable shape. However, such devices, as well as other cameras can be easily disguised among the items of the interior. But the most often, they are placed by means of a bracket on the wall or ceiling of the room. The main feature of such devices is the ability to change the lenses that allows one to manipulate the capabilities without having to replace the entire device. There are, of course, the devices with built-in lenses. The cameras of this type are able to survey the wide or extended spaces such as lobbies of large buildings and long corridors, but the observation of objects in close proximity is also successful. The characteristics of the classic cameras may be different on such parameters as the level of sensitivity, resolution and type of matrix. The cameras can be equipped with infrared illumination for surveillance in the absence of light.