1. Unconventional photography

As for films, the world has a common projection speed, that is, 24 frames per second. As for television, different countries and different formats have different broadcasting speeds. PAL system broadcasts 25 frames per second, NTSC system broadcasts 30 frames per second, and different HD formats also have different broadcasting speeds. However, for a specific format program manufactured by us, its playback speed is certain. If we use the same speed as the playback speed in the early stage, we will get the normal playback speed of the subject. Conversely, we will get the playback speed of the unconventional set object. For example, in the early stage, 48 frames per second are used for taking pictures, and then the projector uses the speed of 24 frames per second for playback. The action we see will be twice as slow as the actual speed, that is, the usual slow lens method is high-speed photography. This method is generally used to take pictures of model blasting situations and some dramatic action situations. Correspondingly, slow photographing means that when taking pictures in the early stage, the frame rate is lower than the normal broadcasting rate, and the playback speed is higher than the normal broadcasting speed. Such photographing speed is generally called fast action. Sometimes it even presents a picture taken a few seconds or minutes away, which is what we call grid by grid or delayed photography. For example, if you want to show the audience the process of sunrise and sunset or flowers, you can use this photography method to finish. In addition, there are methods such as stopping shooting and multiple exposure. Let only this side be exposed, and then the actors play on the other side of the picture and let the other side be exposed together.

2. Model and landscape painting

Model photographing refers to making miniature models of scenes, buildings, city scenes, spacecraft, etc. that cannot be actually photographed to take pictures instead of the real scene. He is a stunt manufacturing technique that uses historical time and has been used in film history. With the development of accounting machine skills, digital skills have a more and more in-depth impact on film stunts. In theory, the virtual CG model modeled by accounting machine can replace the real model. However, because the real model has higher photographic quality and sense of reality, In many cases, the real model is preferred. When the real model cannot be completed, the manufacturing of accounting machine is considered.

For some large-scale backgrounds, especially the perspective, such as a city, or space, or some non-existent buildings and landscape scenes, you can choose painting mirrors to take photos. In this way, there is no need to build a model in the photo studio or in the accounting machine. You only need to find a painting master to draw one. Compared with the manufacturing model, the cost is lower. Manufacturing is more comfortable. Although only one picture is drawn, if we pay attention to the drawing accuracy when drawing and participate in some dynamic elements when composing, we can make the picture live. At the beginning, it was drawn with technology dipped in paint. Later, after the development of digital skills, it was drawn directly on the accounting machine《 Star Wars, Lord of the rings, King Kong and so on have selected large-scale models and landscape paintings for photography.

3. Taking photos with special effects

Photos including blasting, fireworks and other effects. Blasting skill is the effect represented by chemical skills, which occupies a very important position in the field of special effects. It is generally composed of model blasting or setting off images with an accounting machine, which is generally combined with other stunts. Most modern films, especially those with campaign themes, have more and more successfully used model photography and fireworks blasting stunts. Later, electronic remote control detonators and other photographing methods using electronic skills were also carried out.

Taking pictures of the real blasting situation is not simple. Due to different manufacturing methods of gunpowder, the shape and color of flame are also different, the device position and dosage of explosives are different, and the shape of the situation during blasting is also different, which all need the support of theory and experience. There are also some 3D software and plug-ins that can well end these effects, which is recognized by many people in the industry.

4. Optics

Optical stunts refer to the special effects of using the function of the optical printer, such as stacking, fade in and fade out, reverse printing, skip printing, reprint, grid by grid printing, etc.

Other stunt effects also include pre composition photography and post manufacturing composition, and making stunt lenses in a pure digital way.

Concept of composition: composition refers to the processing process of mixing multiple raw materials into a single composite picture.

Article source: Jiangmen film and television production http://www.sjttv.com