| 摘要 |
PROBLEM TO BE SOLVED: To provide a distance detecting device for obtaining a distance to a main subject from size occupied by the main subject on a photographic image plane. SOLUTION: This electronic still camera is provided with a photographic lens 11, an optical filter 12, a CCD 13, an A/D conversion circuit 14, an image processing circuit 15, a buffer memory 16, a CPU 17, a frame memory 18, an LCD display part 19, a range-finding/focusing circuit 30, a lens driving unit 35, an optical filter driving unit 40 and an operation member 50. The size (the number of pixels) occupied by a human's face on the photographic image plane is obtained for every distance to the subject and tabulated as a table in advance, and stored in a memory in the circuit 30. The circuit 30 extracts the human's face from an image pickup signal at the time of range-finding, and the number of pixels corresponding to the extracted image pickup signal is counted to obtain the subject distance from the table. The unit 35 is instructed to drive a focus lens in accordance with the obtained subject distance. |
