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Cameras And Photography Essay

5065 words - 20 pages

What do you consider art? Paintings, sculptures, drawings, or maybe something else. I know, when I think of art, I think of photography. Photography Is used for business, science, manufacturing, art, recreational purposes, mass communication, and more. Photography is using light to do amazing things, and some people think of photography as a story that just needs to be told. Ansel Adams probably believed this. He said, “You don’t take a photograph, you make it.” Photography has a long interesting history, like the fact that the word photography is made up of two greek words, photos meaning ‘light’ and graphein which is ‘to draw’ ! Photography also has some complicated techniques to get a hang of taking good photos. Have you heard of the rule of thirds? Or do you know how a camera works? Well, that will all be explained. Maybe, by the end you will take up photography too. This essay will explore the history and types of cameras and the basic rules for taking photographs.

Photography has an amazing process, no matter if you are using a film camera, or a digital camera. The principle of the camera is that light passes through a small hole, projects an image from the brighter side of the opening to a surface on the dimmer side. The process of making photos, or durable images, is by recording light. Or, it can be created by making images from other electromagnetic radiations. Photography has two ways of capturing photos. It can be made chemically, with a light-sensitive material such as photographic film. Although it could be done electronically by the use of an image sensor. The lens is used to focus the light that is reflected from objects into a real image on a light-sensitive surface inside a camera, during a timed exposure. The result in an electronic image sensor is an electrical charge at each pixel. Then, this is electronically processed and stored in a digital image file for later display or other uses. The result in a photographic emulsion is an invisible image, which can be later chemically developed into a visible image. It can be negative or positive depending on the purpose of the photo, and the method of processing. Negative images on film are traditionally used to create a positive image on a paper base, known as a print, either by using an enlarger or by contact printing.

Photography, now a days, is a skilled hobby, or job. But what some people do not know is how old photography actually is! Though photos are pretty, and sometimes have different meaning, it took quite a time for it to become what it is today. The first mention of photography is in the fourth and fifth century BC, when Greek and Chinese philosophers describe the basic principles of optics and the camera. During this time, in 330 BC, Aristotle, who was a Greek philosopher, was the first to question why the sun created a circular image, when shone through a square hole. That question prompted Alhazen to invent the first camera in 1000 AD. It was called the...

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