Panavision Inc.

Other

Andrew B Romanoff

Michael J Keesling

Nicholas Pollacchi

Christopher J Verplaetse

An automated system for compensating the pan and tilt of a camera head for the movements of a camera support structure and/or a subject matter. A processing system receives signals relating to the movement of the camera support structure, such as the swing, boom and telescope of the crane arm, the movements of a dolly, and preferably the movements of a subject matter. The system employs these inputs to determine the position of the camera and subject matter in a defined world coordinate system and sends signals to compensate the pan and tilt of the camera head so that the field of view of the camera is generally centered on the subject matter being filmed as defined within the system.

Automatic pan and tilt compensation system for a camera support structure

A camera positioning mechanism including a secondary pan mechanism for rotating the camera about a secondary pan axis, the secondary pan mechanism is mounted on the tilt mechanism and the camera is mounted on the secondary pan mechanism.

Fourth axis camera support system and method

A new circuit is connected to the pan servo amplifier 38 of a camera remote pan head 44 for the purpose of eliminating the need for manual backpan. The circuit comprises a tachometer 20 mounted on the pan arm of a camera crane or jib arm 28 and connected to switch 32 and potentiometers 34 and 36. The switch and potentiometers select between three options for operation: an off position, a one to one reverse correspondence between the panning movement of the crane arm 28 and the panning movement of the pan head 44, and a variable reverse correspondence between the panning movement of the crane arm 28 and the panning movement of the remote pan head 44. The output is summed to a servo amplifier 38 which drives the remote head pan motor/tachometer 40. A number of means for alternative implementation are also suggested.

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Los Angeles, CA, United States of America

Andrew B Romanoff