| 摘要 |
PURPOSE:To eliminate the user's uneasy feeling by changing over display to focusing display or rear focus display when the distance ring of the lens becomes infinite position. CONSTITUTION:When front focus signal F, rear focus signal R and focusing signal OK are given from a focusing detection circuit, the infinite signal from the lens is given by ''LO''. For example, unless the lens comes to infinite position, input inversion infinity becomes ''Hi'' and when the front focus signal F is given at this time, the arror F of a display device 30 is lighted. Next, when the lens reaches the infinite position, the input inversion infinity becomes ''LO'' and a round mark OK is displayed in the display device 30. The rear focus signal R and focusing signal OK are given to the display irrespectively of the infinite signal inversion infinity and lighting of an arrow mark R or round mark OK is done. |
