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Introduction to care and feeding of Digital SLR cameras

The imaging device (or Sensor) is the electronic equivalent of the film (for those who remember), and it requires power to operate. The sensor is made up of thousands of individual pixels (light sensitive points), each of which make up the image.

Today’s image sensors is capable of producing remarkable results, equally as good as 35mm film. However, many professional photographers maintain that the conventional film negative is still capable of producing a greater detail and tonal range than the digital image sensor.

The gap is closing, though, and for most general purpose photography you will be hard pressed to distinguish a digital from an analogue image.

The great thing about digital photography is ‘you don’t need a darkroom to develop your pictures’. Computer software allows you to sit, in the comfort of your living room, at your computer and manipulate, sharpen, change, crop and recolour images to a degree unheard of with analogue film images.

The inside mechanism of the mirror chamber in Nikon D-SLR cameraMechanically the Digital SLR camera is very much like its old film relative. That is, it has a shutter, mirror mechanism and a prism viewfinder. But the film has been replaced with an CCD Image Sensor and the space where the transport mechanism used to be, is now filled with all the electronics necessary to capture and store images.

New breed digital cameras, without the mirror/finder mechanisms, are gradually becoming popular, and are certainly are less weighty to carry around.
We will see many improvements in the next few years, and the DSLR will probably slowly fade into the background.

The electronics in digital cameras is like a mini-computer and you should think of it and treat it as such. Occasional the program (firmware) will need updating, and sometimes the ‘system’ will need resetting to its factory default state, in order to fix odd problems that may creep in.

Anyway, enough of the technical stuff for now!
Next page deals with causes of dust  >>

Facts about repair of small digital cameras:

Serious damage or faults such as impact to the lens unit, sand intrusion, water damage, or or other accident that render the camera inoperative, may not be a viable repair option.

The fact is manufacturers do not expect you to have your compact small digital camera repaired, but to replace it when things go wrong.

Try to purchase a simple little part, such as a gear, and you will soon discover that you simply can’t.

Instead you are expected to fork out big money for a complete assembly, almost certainly making repair uneconomical.

Lens modules, such as shown above, are not available as individual parts. So, when damaged by impact, sand or water intrusion, repair is just not economical.