A description of a device for preclearance in a photographic apparatus reflex mono - objective and device for preclearance in a photographic apparatus reflex mono - objective

摘要

Process for controlling a device for the pre-control procedure which is actuated by a switch (92) pre-control procedure that it can be controlled from the outside, in a photographic apparatus reflex mono - objective to af, in which it closes the switch (92) pre-control procedure, the operation of the af is carried out before, a closing operation of the diaphragm in order to bring a diaphragm of a fully open position to a position set of a diaphragm.