Buying A Camera And Understanding Zoom

By Andrew Kelly

At one time photography was a hobby limited to those with bottomless pockets and a keen understanding of the mathematics of light, focal distances and other confusing terms and phrases. Pioneers such as George Eastman (of Kodak fame) introduced many inventions that brought photography to the masses bringing down the costs and simplifying the processes. With the appearance of the instant camera we saw the removal of the need to wait for long periods of time before we saw the results of our snaps. Today the film camera has been replaced by the digital camera and it is no longer necessary to even print our photo's but have these advances made photography easier to understand?

The world of the digital camera can be very confusing before we even buy one. With such a large number of companies producing them which one do we choose. The decision is made even more difficult by the fact that producers often have a number of different models available. Well known brands such as Nikon and Canon compete against a multitude of new companies offering what appears to be, superb bargains but how do you spot a digital camera bargain?

Buying a digital camera can be confusing and there are a few things you should become familiar with before proceeding. The word megapixel will be recognized by many but not so many may recognize the word interpolation. If a camera uses interpolation another camera with the same amount of megapixels without interpolation will be superior. Interpolation is a digital method of increasing the megapixel size of a photo so that a 5mp photo will be the same as one taken using, say, an 8mp camera.

Zoom is another term which can be confusing but gaining an understanding of the two types, digital and optical, will help you find a digital camera bargain.

You will often see an impressive figure for digital zoom quoted on digital camera packaging but in actual fact you would be better off ignoring it. The reason for this is that digital zoom takes your photo and cuts it down in size (to the area you have zoomed into) and then simply enlarges this part. Of course the more you zoom in the more the photo degrades.

On the other hand, optical zoom, is something of importance. Optical zoom does not have an effect on the quality of your photo. Therefore you can zoom in and your image will still be as good quality as before. The greater the optical zoom the better the camera. However not all optical zoom is equal as the quality of the lens can vary between cameras.

It is usually the case that the more you pay for a lens the better it will be. One thing to remember is that a photo taken with a lens costing $thousands is bound to be far, far superior to the exact same photo taken using a camera which cost a couple $100.

Deciding which optical zoom you need depends on how you will be using your digital camera. If you will just be taking snaps of friends then there is no point buying a 800mm lens and a DSLR camera, you would be far better buying a good quality compact digital camera.

The world of the DSLR camera is huge, far too complicated to cover here in one article. Many people are buying them for home use now but they are usually only used by professional photographers.

Personally I use a professional Canon DSLR and a superb Canon PowerShot A480 for quick snaps. I think the A480 is fantastic for the price and suitable for all manner of photography. It only has a 3.3x optical zoom but this is ok for most situations. When comparing cameras look at the specifications carefully and always read reviews before making your final decision. - 30452

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