What is a fool machine? !

Fool camera is an electronic programming automatic exposure camera. The aperture and speed of this camera are automatically set by the electronic program circuit in the camera according to the film sensitivity and the subject and environment, and automatic shooting can be realized without the intervention of the photographer. Compared with the single-lens reflex camera, the fool camera is simple and easy to use, but the imaging quality is not as good as that of the single-lens reflex camera because of its small aperture.

Fool cameras can be divided into three categories, namely fixed-focus cameras, autofocus cameras and zoom automatic exposure cameras.

The lens of a fixed-focus camera is fixed, and its working principle is to take pictures by using the depth of field of the lens. This camera lens has a wide depth of field, and can image objects at a considerable distance (such as1~ 3m). The camera body is usually marked FF (No Focus), which is actually a toy camera with poor imaging quality. When using this camera, it should be noted that the subject should be 2 ~ 3 meters in front of the camera to ensure a clear image.

Therefore, because it can automatically focus, the operation is simple, and the technical requirements are relatively low, as long as it can press the shutter, even a fool can use it, so it is called a fool machine.

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