The Science Of Photography


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The field of photography involves capturing and creating images. It can be done in many ways, including using digital image sensors and film. It is one of the most popular forms of art, and can be used to capture many different things, from landscapes to portraits.

The first permanent photograph was made by Nicephore Niepce in 1825. It was a picture of a view from his window, and it showed the sky and land. It was a very simple image, but it was the first step in the evolution of photography.


A picture’s brightness depends on how much light reaches the camera sensor (or film). If too little gets there, the photo will be dark. If too much does, the picture may look too bright. Getting the right amount of light is known as exposure and it’s one of the most important aspects of photography.

When you click the shutter, a set of processes start that depend on chemistry and physics. The result is a digital file that you can edit in your computer.


Contrast is a key component in photography, but it can take many forms. Compositional contrast is the most challenging, as it requires an understanding of how to tell a story through opposing elements. For example, a photo of old, weathered hands holding the soft skin of a newborn would deliver a powerful contrast of age and life. Likewise, a photograph of an old Soviet tank monument being climbed on by children would be a compositional contrast of seriousness and fun.


Photography is a medium that bridges the worlds of science and art. Its earliest practitioners were often scientists — chemists, archaeologists and botanists — as well as inventors and entrepreneurs.

Light is the key to photography and dictates how the key elements of a visual story are knitted together into a seamless whole. A good photographer understands how to shape and use natural and artificial light to create outstanding images.

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