| 摘要 |
PURPOSE:To attain proper range-finding without being affected by the distance to an object. CONSTITUTION:When the focal distance of a photographic lens 16a is on a telephoto side, a CPU 20 sends a control signal to a driver 19 to drive a pulse motor 11, a casing 1 supporting an object distance detecting means 6 is turned in a narrow range via gears 10, 9, and 8. On the other hand, when the focal distance is on a wide-angle side, the casing 1 is turned in a wide range. Therefore, a range for measuring a distance can be made narrow, on the telephoto side, and wide on the wide-angle side, an intended object is easily focused. |
