Digital Envisions

Of the digital photography equipment available on the market today, the digital camera has to be the most important single item for producing eye catching images. There has been a vast improvement in quality since the introduction of the first commercial digital cameras in the late nineteen eighties. This development radically changed the way images were captured and stored.

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.

The modern camera needs to have removable memory fitted and a few popular formats are in widespread use such as the Compact Flash, SD card, Memory Stick and several other types that are not well known. Many of these memory cards are able to store hundreds of photographs in a variety of sizes quite unlike the small capacity cards used by earlier digital 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.

The lenses on many digital cameras may be interchanged with wide angle and telephoto types in much the same way as film cameras. There are some differences between film and digital cameras, but both require a tripod for blur free photographs. This concludes the beginners introduction to digital photography equipment.

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