The Principle Of Photography Is Simple And Always Developing
The working principle of photography is to focus the light with the help of refraction so that it can burn the light-catching medium. Medium that has been burned with the right size of luminance will produce an identical image of light entering the refraction medium which is then called the lens.
In order to produce the right light intensity to produce an image, a measuring instrument in the form of a lightmeter is used. After getting the right lighting size, a photographer can adjust the light intensity by changing the combination of ISO / ASA (ISO Speed), diaphragm (Aperture), and realm of speed (speed). The combination of ISO, Diaphragm & Speed is called exposure.
The term photography has started since the 19th century, more precisely in 1839 when Sir John Herschel introduced photography taken from two words, namely: Photos and Graphein. The first term means light and the second means writing or drawing. The combination of these two meanings gives the understanding that photography is a technique used by humans to describe a moment facilitated by light. Talking about photography cannot be separated from related instruments, namely the camera.
The camera itself has been found quite old. The term camera itself comes from the Latin camera obscura, where the translation means the room is dark. As you know, if you remember an old documentary TV show, it is a story of taking photos using a camera equipped with an old school tripod and a 35mm camera. Then the shots from this camera continue with the process of washing the film print which is done in a dark and closed room. Why is that? Because the film used contains chemicals that are very sensitive to light, therefore printing camera results should be done in a dark room.
1. Mirror or Pentaprisma
2. The screen is transparent
3. Light Direction (object)
4. A series of lenses
5. Camera body
7. Film (sensor)
The working principle of the camera is quite simple, which is to play the role of light and optics. The diagram above illustrates some important parts of a single lens reflection digital camera. This is where the role of natural science plays an important role to play the interaction of light with a series of lenses that work systematically.
The phenomenon of shooting can occur by playing the role of the shutter retaining button located at the top of the camera body. When the button is pressed halfway down, the camera will receive information on the object in front of the camera, then proceed to use a mirror or pentaprisma mirror to be forwarded to the viewfinder. This section has a very important function which is to reverse the image of the projection lens to match the real object in front of the camera. Why does this happen? this can be explained based on the working principle of the lens, especially the lens which has two converging convex sides. This lens will produce an inverted image compared to the orientation of real objects.
Characteristics of the lens are quite exotic where the light can be deflected at the center of the lens and eventually comes out of the lens body with an object orientation reversed by 1800, then when the results obtained from the optical scheme above, and the photographer’s eyes feel suitable with the object to be taken , then the diaphragm section is pressed further to execute object retrieval. The consequence obtained geometrically with this step is that the mirror portion rotates 900 and the information obtained by the lens will be passed on to the film sensor section. This can happen by continuing the alignment of the light and loading the object’s information.