What's the difference between a push-pull lens and a moving lens? Can you move the lens quickly?

Push shot has a clear subject goal, mainly to highlight the subject and details, and at the same time introduce the relationship between the whole and the local, the objective environment and the main characters in one shot. This subject and detail determine the advancing direction and final landing point of the lens. When the lens is pushed to the subject or detail, the range of view is from big to small. As the minor part keeps moving out of the picture, the subject or detail to be shown gradually becomes bigger, which "forces" the audience's attention, and its left picture picture finally makes the subject or detail in the eye-catching visual center, giving people a distinct visual impression. There are two types of push: zoom push and mobile position push.

shot-pulling (shot-pulling):

shot-pulling is beneficial to show the relationship between the subject and the environment in which the subject is located. It makes the picture gradually pull away from a subject, showing the environment around the subject or representative environmental characteristics, and finally stops in a space far larger than the subject, that is, in a coherent shot, it not only shows the image of the subject in the starting picture, but also shows the environment of the subject in the left picture picture. This expression method from subject to environment is a point-to-surface expression method, which not only shows the position of this point on this surface, but also shows the point and surface. For example, the picture begins with a reporter doing a report, and ends with a scene of a traffic accident, which shows that the reporter is doing a live report at an accident site. The same shot, if you continue to pull out, a family is watching this TV program, so it seems that the emphasis on this report has shifted to the family's concern about this matter. In fact, the whole meaning of the picture is only completed when the picture finally appears in a specific environment. It can be seen that the left picture picture with a shot is the key to uncover the meaning of the picture.

The framing scope and performance space of the shot-pulling picture are constantly expanding from the beginning, and new visual elements are constantly coming into the picture. The original main body of the picture and the constantly-drawing image form a new combination, resulting in new connections. Every combination of images may cause structural changes inside the shot. Some shots start with a part that is not easy to infer the overall image, which is conducive to mobilizing the audience's imagination and speculation on the overall image. With the opening of the shot, the subject is never complete, and from. This mobilization of the audience's imagination itself forms the ups and downs of visual attention, which enables the audience to actively participate in the understanding of the image of the picture rather than passively accept it. The difference between push-pull photography and mobile photography is that the camera moves along its optical axis, which is a special kind of mobile photography.

when the camera is in motion, shooting is called panning, and the panning lens is called panning. There are two kinds of shifting: shifting and shifting. Moving vertically makes the frame of the picture in motion, and the objects in the picture will show the trend of constantly moving away whether they are in motion or at rest, and mobile photography opens up the modeling space of the picture through the movement of the camera, creating a unique visual artistic effect. TV art expresses the picture of life through TV screen, but the scope of TV picture is strictly limited by four-sided frame. Mobile photography makes it possible for TV picture modeling to break through this limitation, for example, lateral movement breaks through the limitations on both sides of this picture frame and opens up the horizontal space of the picture; Vertical movement breaks through the limitation of the screen in the vertical direction, and shows the depth space of the picture directly through motion in the TV picture, especially when it is used to represent large scenes, large depths, multi-scenes and multi-level complex scenes, which has magnificent modeling effect. And for more complex space, it has integrity and coherence in performance. More and more aerial shots appear in modern film and television programs, which represent the complete space in a larger scope and endow the film and television pictures with more rich and diverse modeling means. In addition to the characteristics of general moving lens, aerial photography also shows scenes that people seldom see in their lives with its high viewpoint, new angle, strong movement and fast pace. For example, in the film "Looking at the Great Wall", the majestic momentum of the Great Wall is often expressed by aerial photography. For example, in the TV film "Pingyao, a famous historical and cultural city", a forward-looking camera shot of aerial photography is used to give a panoramic view of a long ancient street. These aerial photography lenses bring the audience's viewpoint into the air, looking down and looking far, expanding the capacity of the picture performance space and forming a huge momentum.