Digital Envisions

The digital camera must be the focal point of any digital photography equipment being used by the modern photographer to produce quality images. The modern digital camera has seen significant improvements in quality from the first cameras that appeared late in the eighties. The techniques for capturing, storing and manipulating images have changed radically over previous years.

The traditional method of taking photographs involved exposing a light sensitive film within a light tight enclosure for a short period of time. The chemical coating on the film reacted to the light and dark areas of the scene being photographed thus recreating the image. Using a series of chemical processes, a photograph of the original image could be reproduced.

The whole process can be accomplished electronically, a lot quicker and without using any chemicals. This is done by using a light sensitive array of sensors which can faithfully record the light patterns from the camera lens as with a film camera, with the sensors standing in place of the film. A removable memory card is often used to store the images which can be viewed on the monitor of a computer or printed out at a more convenient time.

It follows then, that some sort of removable memory devices are needed, and there are several types available on the market ranging through SD, Memory Stick, Compact Flash and a few lesser known types. The latest range of cards are able to support a large number of photographs compared to the first memory cards available on early cameras.

Apart from the camera, no digital photographic process would be able to function without a computer. The computer enables the photos to be downloaded from the camera onto larger memory devices such as hard disk drives. Using a computer, the photograph can be manipulated to enhance sharpness, color tone and even to remove and add items that were not present in the original image.

Several types of digital cameras in use today use lenses that may be interchanged, offering the same flexibility of use as the film camera did. Although there are some slight differences in the way that digital cameras and film cameras operate, a tripod is often required to produce a pin sharp image and this should be a standard part of the digital photography equipment of any serious photographer.

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