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Using technique of camera crane

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The horizontal adjustment of camera crane is the first thing to do after rocker arm is good. It is a key factor related to the relative level of the picture. If the factors of the camera are excluded, it is the only factor. The level adjustment is divided into three steps. Such

Step 1: three level adjustment of the tripod.

The horizontal adjustment of the three tripod is simple and the same as that of the general three foot frame. The three legs of the three legs of the general manufacturer can be adjusted, but some of them have no level. When you have no level, you can use a horizontal ruler to put on the three foot frame's disc to make it level in the direction of 0 degrees and 90 degrees. It

The second step: the horizontal adjustment of the upper arm of Yuntai.

The horizontal adjustment of the upper arm of the cloud platform is divided into two steps. The first step is to adjust the flower screw to the level of the upper arm of the cloud platform (90 degrees and 270 degrees). If there is no horizontal instrument, it can find a reference (such as the roof of the building, etc.). The second step is to adjust the level (0 degrees and 180 degrees) in the direction of the upper arm of the upper arm, which must be used when the first adjustment is used. It must be adjusted.  The adjustment of the upper arm of the Yuntai platform is different from that of the other manufacturers (part of which can not be adjusted). However, it is necessary to loosen the adjusting screw and twist the upper arm of the platform to make it level.  The screw can be pressed. It

The third step: the horizontal adjustment of the platform bracket of the cloud platform

The horizontal adjustment of the Yuntai platform bracket usually needs to be adjusted after the camera is installed. Before adjusting, you should first check the level of the upper arm of the platform in the direction of 0 degrees and 90 degrees. If the upper arm of the platform is not level enough, it is useless to adjust the level of the bracket.  You may often encounter the level adjustment of the pallet rack, rotating the PTZ, and the camera is not level in other directions. The reason is that the upper arm of the platform is not adjusted. If the rotary arm is not leveled again, that is, the three foot frame is not leveled. ""

Camera center of gravity adjustment

In the use of the rocker arm. The adjustment of the center of gravity of the camera is crucial. It determines whether the camera's rotation in the straight direction is uniform and smooth. It

First, the principle of center of gravity adjustment. It

Two. The position of the center of gravity of the camera 1.. The so-called center of gravity of the camera is the intersection point of the three midline sections of the gravitational balance on the X, Y and Z axes. Of course, we should also take into account the weight of pallet and pallet. 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 balance in the Y axis is the same as that on the X axis. The weight balance of the Z axis is the same as that on the X axis. The intersection of the three midline sections on the X, Y and Z axes is the center of gravity of the camera. It

2. adjustment principle. Such

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. The vertical axis of the horizontal axis of the Yuntai is intersect with the center of gravity. It

Three. The adjustment method.       

The central line and the center of gravity should not be considered. It

1. Release the motor fixing screws to separate the motor gear from the bracket gear. It

2. The position of the mobile camera's supporting plate on the pallet shelf keeps balance between the camera and its position, and it doesn't bow or not. Turn the camera 180 degrees, and the pallet is facing up, and the camera can still remain stationary.

3, adjust the position of the camera on the bracket, so that the camera can remain stationary when the head is down and up.

4, the rotating camera can remain stationary at any degree of 360 degrees. If you can't stay at rest, repeat 2 or 3 adjustments. The camera can remain stationary at any degree. It

5, the replacement of the camera needs to be readjusted. Because the center of gravity of different cameras is different. There are several ways to shoot with the rocker arm! How to exercise to make the picture look good!!!! It is one of the most commonly used techniques to shoot and shoot the left and right sides. When the scene is too big, you should use a "panning" way if you can't shoot the whole picture with a wide angle lens. ""

Panoramic shot up and down and left and right panning, that is, the camera's position is unchanged, depending on the angle of the camera to shoot. The first situation is that when you take a big scene or a picture of a picture, it is often used at the beginning of the story you have taken, like an opening, to introduce the location of the event and the character of the protagonist. Position and environment; the second is to track a moving target, such as an athlete in a high dive, something falling upstairs, or a running car.       

(1) shooting up and down, using this method of shooting can track the target moving up and down. If an athlete's diving action is taken as an amplitude from the athlete's standing on the platform, he will take the shot.


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