| 摘要 |
PURPOSE:To confirm subject view depth for a set diaphragm without darkening a finder. CONSTITUTION:A subject view depth confirmation mode switch 7 is to set the mode. A front and back limit switch 8 is to specify the front and back limit focal point mainly for the center of focus depth. When the subject view depth confirmation mode switch 7 is operated and the front and back limit point is specified, an AF control CPU 5 calculates the value of focus depth (+ or -Fdelta) determined by a F number depending on a lens and a diaphragm and a minimum blur circle (delta) as a focus reference, and moves the lens corresponding to a correction value, allowing the depth of subject field depth to be visually acknowledged. |
