What is the main part of the camera?

The camera consists of optical system, circuit system and mechanical system.

Any camera, from a large landline in the studio to a small treasure in the palm of your hand, or even a simple "electronic eye" in the street, regardless of the size and price, the camera equipment is composed of these three basic systems. Moreover, the failure of any one of these three systems will affect the normal work of the camera and even completely paralyze the equipment. For the master in charge of maintenance, they often look for problems from these three basic angles. And for us ordinary users? Mainly to remind us that we must do our best to protect the camera. For example, pay attention to the cleanliness of the camera and avoid using it in places with high dust, otherwise the optical system will be seriously damaged; At the same time, places with high humidity are also very dangerous, such as rainy days and seaside, and the water mist is very thick, which has a great influence on the circuit system; In the process of placement and transportation, we must pay special attention to shock prevention, which is the requirement of the camera precision mechanical system.

If the three-system theory of camera composition is too abstract, then these five points are much more specific. The camera consists of lens, photoelectric conversion system, video recording system and monitoring recording system.