Who invented it?

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Louis Daguerre.

1837, Daguerre successfully invented a practical photography called Daguerre photography. Finally achieved success! Daguerre photography is the first successful photography method in the world. Its basic idea is to expose a copper plate with silver iodide on its surface, then steam it with mercury vapor and fix it with salt water to form a permanent image. Later, Daguerre made the world's first camera according to this method. His camera is basically the same as the camera we use today, which consists of lens, aperture, shutter, viewfinder and camera box. The lens is an important part of the camera, and the scene forms an image through the lens. It consists of lenses with different properties and shapes. Daguerre camera has only one focal length, which is f = 75mm；; Aperture is a device installed on camera lens to adjust luminous flux. At that time, the camera was equipped with four kinds of apertures: 4,/kloc-0,/kloc-0 and 16. Shutter is a device used to adjust how much light enters the lens; The viewfinder determines the range of taking photos; A black box is an opaque box, which is used to hold film. Daguerre's ingenious design has been used to this day.

Daguerre's most important contribution to human progress is the invention of Daguerre photography, which is the earliest practical photography method and the first camera successfully developed according to this principle in the world. He is the inventor of photography technology and camera, and is known as "the father of modern photography". All kinds of cameras used by people were made by changing the working principle of Daguerre when designing cameras at that time.