| 摘要 |
The photographic camera comprises a plurality of electronic measure sensors. The first of those sensors (37, 38) provided for the angle ( omega ) wherein the base (10) of the apparatus is inclined with respect to the horizontal during focusing. A second sensor (42, 43) relates to the displacement ( DELTA s) which must be given to the image plate support (13, 17) along the base, when two objects placed at different distances from the objective (12) must be represented in focus. A third sensor is provided for the distance (d) producing the image of the two objects perpendicularly to the inclination axis of the apparatus base. An electronic circuit (30) is also part of the camera. The signal produced at the output (48) is elaborated from output signals from the measure sensors. Said signal corresponds to the angle ( delta ) according to which the image plane (13) must be pivoted for an accurate focusing on the two objects (14, 16). The camera enables to determine the pivoting angle ( delta ) during the displacement ( DELTA s) perpendicular to the image plane (13), along the base (10), independently of the inclination angle ( omega ) of the base with respect to the horizontal (11). |
