What does a movie camera mean?

The difference between camera and camera

One: The difference between a camera and a video camera:

1: In China, there is a strict distinction between cameras, cameras and cameras. A camera refers to a machine that shoots movies with film. A camera is a machine that records moving images with magnetic tapes, optical disks, hard disks, etc. , widely used in TV program production, family and so on. The camera uses film and mechanical devices to record moving images, uses optical and chemical recording methods, and uses electronic recording methods. Cameras and camcorders record in the same way, but the recorded images are fixed.

2. One is magnetic recording and the other is photochemical recording, which is the most essential difference!

3. A camera refers to a device that uses film to shoot dynamic pictures. Its mechanical mechanism is complex, the development and printing process is tedious, but the effect is unparalleled. It's for filming. (Of course, there is also glue for magnetism. ) imaging is a chemical reaction, using film. ..

The camera uses magnetic recording, that is, the recording medium can be reused, with high efficiency and low cost, but the effect and accuracy are much worse than that of film shooting. It's for TV. It is a concept of photoelectric conversion. The recording medium is a digital recording tape. ..

With the emergence and continuous development of high-definition cameras, the difference between photography and video recording has indeed become smaller and smaller, but the principle of photography and video recording will never change!

Second, the types of film cameras

Movie cameras are mainly used to shoot and record moving or still images. It is a kind of precision mechanical equipment which integrates the knowledge and research results of optics, machinery, electronics, electrician, electroacoustic, chemistry and other disciplines.

Film cameras can be divided into three types: large, medium and small.

According to the membrane width, it can be divided into 70 mm, 50 mm, 35 mm, 16 mm, 8.75 mm and 8 mm.

According to the purpose, it can be divided into stunt cameras, high-speed cameras, subtitle cameras, time-delay cameras, microscopic cameras, underwater cameras and aerial cameras.

In recent years, film cameras are mainly developing towards portability, miniaturization, low noise and automation. At present, 16 mm camera is widely used in filming teaching films.

Third, the structure of the film camera.

A movie camera is generally composed of a lens, a body, a cassette and a driving motor.

For a camera, the lens is its main component. Its function is to make the subject clearly imaged. Therefore, its lens is required to have a high standard of clarity and maximum light transmittance. Generally speaking, the focal length of the standard lens of a movie camera is about twice the diagonal of the picture, and its horizontal viewing angle is 24. Professional cameras often have several interchangeable lenses with different focal lengths, such as wide-angle lens, telephoto lens and standard lens. Nowadays, many movie cameras are equipped with zoom lenses, which is much more convenient to use.

Film cameras actually shoot a series of still images. When the film is in the window, it must be still to expose it, just like a camera, then move the film so that the lower part of the film is aligned with the window, and so on. The key component of this part of the camera is its intermittent mechanism. There is a shutter in the intermittent mechanism, which can block the light at the appropriate moment of each intermittent period. Shutters generally use a turntable with a fan-shaped opening angle, so that the light emitted by the lens can be projected onto the film still in the film window. When the opaque sector mask on the shutter blocks the light, the film starts to move under the drive of the intermittent mechanism, and is stabilized at the exposure position again. The continuous motion of the film in the camera is driven by the film conveying gear, and the teeth on the rim mesh with the film hole. There is a set of pinch rollers outside the gear, which makes the film contact with the gear well and prevents the film from falling off the teeth.

There is a certain route for the film to run in the camera, which requires not only to ensure the accurate and safe operation of the film, but also to make the operator change the film quickly. On the film running line, besides a pair of retractable sheeting pulleys on the main transmission gear, there are pulleys to guide the film into and out of intermittent motion. The device that supplies the camera with film and rolls up the exposed film is called a film cassette. Most of them are installed on the upper part of the fuselage, and the two film rooms of the cassette must be completely opaque. Film loading must be done in a dark room. Usually, the film factory loads the whole film, leaving a section of the film tail exposed outside the film box through the light-proof channel of the film box. After the camera is mounted in the dark box, the film can pass through the film channel of the camera, and then the film tail can pass through the opaque channel of the film receiving box, so that it can be wound on the shaft core of the film receiving shaft. The whole film loading process is just like loading a camera with film, but the former is more complicated.

The cassette used in 16 mm camera is different from the double cassette used in general cameras. This is a two-chamber cassette, driven by the same gear, and has two parts for film supply and film winding. To rotate the camera, there must be a driving part, usually a motor or clockwork. If motor drive is used, there are interchangeable types of motors to meet different needs. In order to make the exposure consistent, the camera must run stably. When recording at the same time, the camera should control its running speed more accurately.

What's the difference between a movie camera and a TV camera?

In China, there is a strict distinction between cameras, video cameras and cameras. A camera refers to a machine that shoots movies with film. A camera is a machine that records moving images with magnetic tapes, optical disks, hard disks, etc. , widely used in TV program production, family and so on. The camera uses mechanical devices to record moving images, uses optical and chemical recording methods, and uses electronic recording methods. Cameras and camcorders record in the same way, but the recorded images are fixed. The world's first practical film camera was born in 1895 in Paris, France. It was invented by Lumiere. The first camera was made by Americans in 1936 and was invented collectively.

What is the machine that the director looks at when making a movie? Can all the camera images get into that monitor?

In fact, cameras are classified by different names. A, radio and television cameras according to the purpose of classification (1). Second, special-purpose cameras are classified according to production methods. According to the production methods of TV programs, it can be divided into ESP camera, EFP camera and ENG camera. Three, the camera can be divided into camera tube camera and CCD electronic coupling device camera according to the camera device. 4. Classification by signal mode According to different signal modes, it can be divided into analog cameras and digital cameras. What you said was hanging in the air for a long time, but it was actually the camera hanging on the rocker arm. Also, it needs to be clear that filming machines are generally called cameras, sub-film cameras and digital cameras.

A camera is a device that records images by using optical principles. It consists of lens, microphone, fuselage, viewfinder, battery box and other devices, and is mainly used for making movies and TV programs. In the early days, negative films or video tapes were used for recording, and digital cameras were invented and stored in flash memory. Newer cameras store image data directly in the hard disk of the fuselage. According to the recording function, it can be divided into camcorder and video camera.

What's the name of the camera used to make movies?

Oh, I don't understand at all. What is the connection between movie cameras and HDTV systems?

A movie camera is a movie camera. It rolls film. Movies are divided into 35MM, 16MM and 8MM, of which 35MM is the mainstream camera for filming.

There is also the current digital film shooting, which really uses high-definition cameras, or better Alecom. He took the tape, but his production process was the same as film production except that film printing was omitted.

HDTV system is HDTV system.