Digital Envisions

Most of us spend some time looking at photographs taken long ago. Those pictures bring back sweet memories and make us feel lighter and happier. With camera mobiles in hand, it is common to makes use of every opportunities and take a picture to have as a memory.

The optical element of the camera is the lens and it is more important than the other components in the camera. Somehow some pictures look brighter and better. This is mostly dependant on the type of lens that is used in the camera.

Typically, a lens is a single piece of glass with one or more curved surface. When light rays enter glass, they can bend in any direction. The lens controls and directs the light rays to converge at one point. The lens gathers and directs the light to produce sharp and bright pictures. Light enters the lens through the hole called an aperture. The amount of light needed depends on the size of the aperture.

Using the right lens for the right image becomes important as the lighting and environment affects the quality of the picture. Knowledge of this becomes vital especially to people who use a camera in their profession. The distance between the lens and the film is referred to as the focal length. It represented in millimeters.

There are different types of lenses with different focal lengths. A standard lens will have a fixed focal length whereas it can be adjusted in a zoom lens. Using the zoom lens you can bring the object closer without moving. The focal length determines the focus of light. Manipulation of the light can change the complete look of the image captured. A short focal length would provide a greater depth of field.

When a photograph is taken, it includes the object, foreground and background. The lenses can be used to make the object seem far or near. The background can also be made to look bigger and closer with the adjustment of lenses.

With the advancement in science, all the lenses available today are of good quality. However, there are various types meant for various uses. The lens with a wide aperture would generally cost more as it allows shooting even in dim light and is fast. By using the right lens, you will be able to capture images to your utmost satisfaction.

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