| 摘要 |
<p>PURPOSE:To photograph both objects under respectively focused states even if a lens is abutted with an infinite end by finding out the intermediate position of a lens based on the moving distance of the lens in dipping processing. CONSTITUTION:In case of finding out the intermediate position of the lens for internally dividing a defocused value between two different objects, a microcomputer PRS moves the lens from a 1st lens position on which a 1st object can be focused to a position for focusing a 2nd object, and at the time of ending the movement, detects the practical lens moving distance between 1st and 2nd lens positions and finds out the position obtained by dividing the lens moving distance by a prescribed rate as an intermediate position. Even if the lens is abutted with the infinite end, the lens can be moved to the intermediate position obtained by dividing the moving distance of the lens between the positions allowing the camera to focus the 1st and 2nd objects by the prescribed rate and the 1st and 2nd objects can be always photographed under respectively focused states.</p> |
