AUTOFOCUSING DEVICE

PROBLEM TO BE SOLVED: To realize an autofocusing device whose operation state is confirmed and whose handleability is excellent. SOLUTION: At a constrast detection type autofocusing device 4, rough focusing operation is firstly performed, and when a peak value appears at a point other than both ends of the contrast curve of a video signal obtained, close focusing operation is continuously performed. When the peak value appears at the position (a) of the end of the contrast curve 96C1, a scanning range is shifted, and the rough focusing operation is repeatedly executed. Since the peak value P1 appears at the position other than both ends of the contrast curve 96C2 obtained, the contrast curve 97C2 so as to perform the close focusing operation is obtained. In the case that a difference Δ2 between the peak value and minimum value of a curve exceeds a previously set value Δ0, a lamp 43a informs that a focal point is detected, and in the case the difference is equal to or less than the value Δ, the lamp 43b informs that the focal point is not detected.