Application technique of enterprise propaganda film camera crane

Shooting corporate propaganda film, camera crane is one of the essential tools. The production of promotional films, documentary filming, conference shooting, aerial photography, special film shooting and so on all need to use rocker arm.

The use of camera crane skills - adjust the camera's center of gravity in the use of rocker arm. It is very important to adjust the center of gravity of a camera. It determines whether the camera's rotation in the straight direction is uniform and smooth.

First, the principle of adjusting the center of gravity.

The position of the center of gravity of the 1. camera. The center of gravity of the camera is the intersection point of the center line of gravity balance on the three axes of X, Y and Z. Of course, the weight of pallet and pallet should also be considered. The balance midline section on the X axis is located at 1/2 of the total weight of the camera and bracket. That is to say, if the camera is cut from the midline section of the weight balance, the weight of the two parts of the camera is equal. The weight line in the Y axis is the same as that on the X axis. The weight line in the Z axis is the same as that on the X axis. The intersection of the three midline sections on the axis of X, Y and Z is the center of gravity of the camera.

2. the principle of adjustment.

When adjusting, a line formed by the intersection of the midline section on the X and Y axes should coincide with the position of the center line of the bracket axis.

Two. The adjustment method.

The general horizontal rotation of the axle load line and the center of gravity need not be considered.

1. release the motor fixing screws, so that the motor gear and the bracket plate gear are separated.

2. the front and rear position of the mobile camera pallet on the pallet supports the camera to maintain a balance with its position, without lowering its head and not looking up.

3. adjust the camera's position up and down, so that the camera can remain stationary anywhere at 360 degrees.