Photography is a very young medium and developing very fast, it is a potent and powerful force, and able to huge stories in single images. The brilliant thing about photography is everyone can take photos and create images in his or her own way. Photography feeds many different aspects of communication. Such as design, newspapers, magazines, advertising, and the internet. However, no matter what equipment you use, it is about finding your own way to seeing things through photography. Finally, photography is the magic medium, the particular photography can ' conjures up' memories or motions for people.
-The mix that makes photography.
Photography is mixed with many different elements-chemistry, physics, optics, computers, electronics, commerce, and creativity.
-Photography in the digital age.
Digital photography is not just about taking photos with different type of camera. It involves combining the digitized images with the power of the computer. moreover, it also about editing and the way of sharing.
-Why do we like photographs?
Photography can get at the essence of things. They have the power to evoke, inform and inspire. In other words, photography is a democratic medium- global, inexpensive and accessible. Photography is easily accessed for everyone, people can know straight away whether we like or dislike them. Moreover, photography can meet our expectations. Photography help us to remember things. We will not lose anything through photography. Finally, the camera is omnipresent. Photography parallels the way we remember things. Photographers bear witness to events for us, allowing us to see things that would otherwise be unseeable.
-Catching the shutter bug.
Photographers are obsessive and are possessed by passions. Now, photography made people to represent themselves more easily.
The power of photographs.
Photographs can be remarkably powerful tools. They can melt taboos, sway public opinion and even impact explosively on governments to cause real change. The photographs provide us a tangible, permanent visual experience. Moreover, it gets straight to the heart of an issue and can crystallise instantly an event or personality. Camera not only create powerful images but are also empowering, we are empowering by the camera.
-How does film-based photography work?
Black and white.
Silver is sensitive to sunlight: the more it gets, the blacker it becomes.
Black-and-white photography works by harnessing this reaction.
Colour.
Through mixing red, green and blue in different proportions, you can create all colours.
Colour film has three different coats of silver similar to those used in black-and- white photography, but layered one on top of another. Each layer is designed to record one of the three essential colours- red, green or blue.
-How does digital photography work?
Digital pictures are made up of millions of pixels. Pixels represent 'picture element', each pixels being a tiny element of the whole picture. Taking a photo use digital camera, it is a little bit like making a painting-by-numbers picture, but it is invisible because the pixel is so tiny. Moreover, every single pixel's individual colours are used to store, show and recreate the image by rebuilding all the blocks of colour in the same sequence to reform the original image. Once an image has been digitised, through changing the number of each pxel on a computer, you can change any of the pixels to alter colour, brightness and contrast. There is no boundary between film-based and digital photography.
-The eye and the camera.
The view we see with our eyes is roughly ovoid, with the periphery of our vision blurring the shape towards the edges. The camera lens produces a circular image, however, the camera has been designed to select a square or rectangular section. Our eyes and camera have a lens that focuses the light reflected from objects. Both the eye and the camera work with light sensitive surfaces: the eye has the retina that is covered with a multitude of light-sensitive cells, however, the camera uses film or a CCD sensor. The tiny difference in viewpoint of each eye allows us to perceive three- dimensional depth. It is called binocular vision. And photographs are two-dimensional representations of what we see through the camera.
We see selectively, when looking at an object, near of far, what we focus on, all of these depends on ourselves. However, camera can focus like this but it can also give a view with everything in its vision sharply focused. The closest distance at which the human eye can focus is about 8 inches or 20 centimetres. The focusing range of a camera lens has no lower limit.
-Where has photography come from?
Over 500 years ago, during the Renaissance, people understood the effect called 'camera obscure', which means dark room. This is how the camera got its name. The light-bending power of a lens had been known in many ancient cultures. For example, in ancient Rome. Segments of a glass sphere is known as 'reading stones'. By 1300 such magnifying glasses were in common use. The earliest illustration of these glasses dates from about 1350. By the early 1800s, many scientists, inventors and businessmen were competing to find a formula. In 1826, Joseph Nicéphore Niépce, had create the word's first photograph, although the scene was nonetheless clearly visible. After Niépce dead, Daguerre finally arriving at a practical process that he named the 'daguerreotype' . By the 1960 the first enlargers using electric light had been designed. As camera evolved in the 1850s and 1860s, photographers viewed the scene through a ground-glass screen at the back of the camera, replacing it with a plate holder when they were ready to take their pictures. By the 1870s new types of photographic plates were being manufactured that were far more sensitive to light. In 1878 the gelatin dry plate process replaced the wet plate negative. In 1888, Eastman launched the first camera to use roll film. He christened his small handheld box camera the'Kodak'. The slogan is 'you press the button, we do the rest'. For the first time, it became accessible to tens of millions of people and a new era of picture-taking began.
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