The galvannealed steel sheet includes: a galvannealed layer formed on at least one surface of a steel sheet and contains includes an amount of 0. According to the invention, the actuating element is rotatably located on the telescopic sight in the form of a rotary knob and the aim mark is displaced in a vertical andor horizontal direction by means of a mechanical actuator, when the rotary knob is turned. The parsed data is saved as new data to a previously populated database containing old data.