Endless Dreams

The focal length of the lens mainly determines the angle of view and depth of field of the shot, while the aperture mainly controls the amount of light entering and the depth of field. The size of the aperture is represented by the f-number, which are important factors affecting the shooting effect of the lens. Viewers can understand the principle of the lens by simulating the focal length and aperture adjustment of the lens, and thus understand that in actual shooting, it is also necessary to comprehensively consider these two factors and other shooting parameters to create satisfactory works.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

Lens focal length: According to the length of the focal length, it can be roughly divided into fisheye lens, wide-angle lens, standard lens, medium telephoto lens, and telephoto lens. Lens aperture: also known as focal ratio, is a component used in cameras to control the size of the lens aperture, in order to control depth of field, lens imaging quality, and sometimes also represents the aperture value.