Please elaborate on the effect of DV filming micro-movies.

Shooting skills of family DV selfie movies;

White balance adjustment of home DV selfie movies: I believe that all DVs now have white balance settings. Why white balance? This is related to the color uniformity of the picture or whether the light is turned on. For example, if you don't finish filming indoors all day, and then you go back indoors to make up the scene another day, then there may be a temperature difference between the front and back colors. After the splicing is completed, there will be no drama. So, don't be lazy before shooting every scene. It is right to balance the dialogue with a blank sheet of paper. (In the case of manual transmission, of course). Reasonable use of white balance can also simulate the morning and evening pictures. When you try to use blue paper or red paper, you will find it. Make full use of the skin color detail correction function to control the detail degree of some specific colors in the picture. When the skin of the main character of the program is defective, the selected area in the picture can be enhanced or softened, and the rest remains original sharpness. Aperture setting is generally set in automatic state. Although the aperture of a general camera can be adjusted automatically, in order to obtain truly satisfactory image quality, especially when shooting scenes with special effects, backlight or strong contrast, it is necessary to set a manual aperture, and at the same time, it is necessary to take two reference values of wide-angle and close-up instantaneous aperture as the setting values of the manual aperture, and properly adjust the black-and-white balance and various parameters of the camera to obtain truly satisfactory image quality.

Home DV selfie film processing backlight shooting: I believe many friends who like photography have this experience. Press the shutter directly under the backlight, and the photographed object turns black, but the background is particularly bright, and the shooting effect is very unsatisfactory, which can be said to be white shooting. In fact, there is a way to solve the backlight problem. Use backlight compensation: Now many DVs have a backlight compensation button. Just press this button, which is simple and quick, and does not need much adjustment. If you don't have this button, you can enter the setting menu and adjust the brightness level to the appropriate brightness, and the effect will be much better; 2. Use flash: Many people think that flash is only used in poor light or at night. In fact, when the light is backlit, you can also use a flash, so that the illuminated object will appear brighter; 3. Use white balance function: Now all digital cameras in digital camera boxes have white balance function, which can be used to adjust the brightness of the illuminated object. But once the white balance function is used, even the background will turn white, which requires you to pay special attention when adjusting. It's best to adjust it slowly to the brightness you want. When shooting in backlight, you can generally use the backlight compensation key. If the effect is not satisfactory, it is recommended to use white balance and flash as subsidies. You can try more when shooting.

Manual adjustment of home DV selfie movies: Why should we lock the focus? Because in the normal mode of DV, its focusing is automatic and very sensitive. For example, if you want to photograph the person opposite the traffic flow, the focus of the machine will change when the car passes by, and the theme of the background-the person will be in the virtual focus, so the picture will be uncertain. There will be many similar situations. For example, if you want to photograph a person walking from the bedside to the desk, the camera will follow this person. If there are many things on the table, the machine will automatically find some again, which will also cause virtual focus in an instant. If you clap your hands, follow focus will miss it (it's not easy). You try to set the aperture value to a small aperture, which will increase the depth of field and make it easier to operate. When shooting in cloudy, morning, evening or different color temperature environments, if the color temperature is uncertain, you can turn on the ATW of the camera, which can automatically track the change of lighting conditions and automatically adjust the white balance. However, due to the influence of shooting conditions, automatic adjustment may not produce the best effect. The preset value of the white balance setting of the broadcast camera is automatically adjusted to different color temperatures through color temperature filter transformation. Under some special shooting conditions, the preset value may give better effect than human eye adjustment.

Tips for recording family DV selfie movies: When shooting with DV, most of us can't afford to rent or buy professional equipment. Then you can only use resources as much as possible. Some machines have an interface that can directly use the home microphone. Then it is much simpler to shoot with this machine, and attention should be paid to the sound with a certain wind direction. When the ambient sound is complex, try to turn your back on the noise with the microphone. When listening to the radio, try to understand the scene when shooting, so as to be as close as possible to the voice of the character. When panoramic shooting can't get the microphone close to the character, you can use a semi-professional MP3 recorder to hide on the character to receive the broadcast. MP3 recorders are also suitable for machines without external microphones. Finally, it is good to synchronize the sound when editing in the later stage of the computer.

Home DV self-timer film interval shooting: Now there are many DVs that can set its shooting time. For example, it can be taken once every five seconds or one minute or ten minutes, or once every three or five seconds. For example, the picture of flowers we saw was taken in this way. Similarly, we can take pictures of clouds flying in the sky or cities changing from black to bright. Some friends here may think that MiniDV's tape and hard disk space are worthless, so it's silly to shoot normally and then finish it with fast grid. Because you have to sacrifice a lot of hard basin space and time later. In addition, some shots can't be completed in an hour. In this way, it is inevitable to move the machine when changing the tape, and the pictures behind will be inconsistent. The combination of interval shooting and flexible use in the later stage can make some beautiful effects. For example, if you shoot a person sitting in the street, there are many people passing by in the foreground. After shooting every second or two, the afterimage effect will be better than that after normal shooting. You can try to compare it.

Key points of slow-motion simulation of home DV selfie movies: Due to the computational complexity of the machine, DV can't shoot in slow motion like film at present, but we can also simulate it with a simple principle combined with the performance of computer software. In the case of full manual gear shifting, shoot as quickly as possible with the shutter under the premise of sufficient light. Every frame taken in this way is clearer than the picture taken when the shutter is slow. The simulated slow motion done in the computer is smoother and clearer. You can compare the slow-motion difference between fast shutter and slow shutter. Especially some pictures taken by streaming media. Finally, we should choose a stable picture record with wonderful picture, refined composition, best color and best definition.

Home DV selfie movies simulate the focus shift effect: We often see in movies or TV that the theme is described by changing the focus of the foreground and background of the picture. DV can actually be done, as long as the principle of depth of field is flexibly used. We know that depth of field is related to aperture and object distance. As long as we use large aperture or object distance to shorten the depth of field when shooting, we can change the focus of foreground and background when shooting. As for whether the focus can be rotated accurately, more practice and discovery are needed before shooting.

Domestic DV selfie film underwater effect method: DV is actually sold in waterproof boxes and bags, but it is expensive and difficult to buy. We can make our own simple tools to do this. My solution is to make a small glass box similar to a goldfish bowl with a DV camera and shoot it underwater. Most TVs are shot like this.

Home DV selfie movies simulate moving straight track: We actually have many simple ways to do it, and we don't have the money to rent track equipment. Including skateboards, vans, etc. After trying a lot of tools, I think there is a method that is the most convenient, smooth and best. Is the rational use of steel wire "Weiya". Put a pulley on the machine and two people can tighten the ends of the steel wire. You just need to take the machine and move it. Its advantage is that the speed is completely controlled by you, and there is no huge noise when skateboards and vans move. It can completely achieve the shooting effect of crossing the straight track.

Key points of home DV selfie movie editing:

The so-called clip is clip+clip. Of course, editing software is needed to make film clips. At present, the common editing softwares are ULEAD Video Studio, ULEAD Media Studio and Adobe Premiere, among which Woori's audio-visual studio is the most common and easy to use. Usually you will get this set if you buy IEEE- 1394. Clips are usually divided into linear clips and nonlinear clips (NLE). Generally, we intercept a movie to a computer and use multimedia editing software (Aoobe Premiere, Ulead MediaStudio Pro, etc.). ) to edit, this is called nonlinear editing, because in the process of editing, we don't need to edit in the order of the movie, but we have to modify that part first, which is called nonlinear editing.

The image of the real world enters DV through the lens and is converted into digital information by CCD. Before storing in DV tape, it is compressed into compressed data with a fixed compression ratio of 5: 1 by the compression chip in DV, and then stored in DV tape. Every 60 minutes of compressed film is about 13G digital data. Intercept DV movies to the computer. Generally, there is a DV In/Out jack on DV, which is used to transmit the data on DV tape to the computer.

Usually, the process of sampling and quantizing a movie from analog signal to digital data and storing it in a computer is called snapshot. However, because the data stored on the DV tape is digital data, it should actually be a transmission action, which will not cause any data loss. This is also the advantage of using digital storage. Think about the difference between data stored on CD and data read on other platforms. To connect the DV input/output jack, the computer needs to be equipped with an IEEE- 1394 card or an interface card specially used for digital editing. I-EEE 1394 is just an interface to transmit data between DV and computer, and the special digital editing card usually contains some functions specially provided for editing. Generally, we just need to buy IEEE- 1394, so it's easy.

Finally, I made my own film, through four steps: collecting, editing, adding effects and saving. Collecting is to grab the DV film to the computer hard disk through USB or 1394 interface. Editing is to re-edit the movies captured on the hard disk. The addition effect is to add some transitions, stunts, etc. to the edited film to enrich the appreciation and cohesion of the film. The last save is to save the processed film to the local hard disk or burn it to the CD.