A lot of my work involves taking photos for business journals and newspapers. When I start a shooting session, people are as interested in my camera as they are in having their picture taken. The truth is the camera is quite impressive: it is large and heavy and equipped with big zoom lenses with a feature that reduces vibration, a compact speed light that brings light even to the darkest room and a big battery pack. Their enthusiasm often fades when they ask about the cost and find out it is above $3,000. What they don't realize is that such a camera would be far more than they needed if they wanted to take up photography. I believe there are six things you should keep in mind when buying a new camera:

1. Basic types of cameras

There are two types of cameras, whether low or high-end: point-to-shoot cameras and SLR (single lens reflex). In point-to-shoot cameras the view is generally through a viewfinder which can give you a good idea about how the photo will turn out like. With the SLR you look right through the lens and you are able to compose the photo as you want.

2. Size and usability

Think about the way you will use your camera. Do you want to be able to slip it in a purse or pocket or you can handle a larger model? Ask yourself whether you will be comfortable with carrying a heavy camera around your neck for a couple of hours. Another important aspect is if you want to just take the camera out and shoot or you are good with spending some time on adjusting the settings. Until you have everything ready the photo opportunity may pass.

3. Number of pixels

Some time ago, the number of pixels used to be the main factor determining the price of a camera. One or two mega-pixels used to be fine for computer viewing. Nowadays, if you only want 4x6 inch prints anything over 2 mega-pixels will do. However, for enlargements that are framed and hung on the wall you need a camera with at least four mega-pixels. The number of pixels determines the amount of information that the camera ca capture. The more pixels you have, the higher the quality of the enlargement. Nowadays even mid-priced cameras have 4-8 megapixels.

4. The budget

Like many other devices, cameras come with tons of options. Some of them you will use while others you won't. There is no need to pay for things you don't use. It's true that higher priced cameras generally have better zoom and resolution, but this does not necessarily mean a better photo. It is better to start with a basic camera and focus on improving your technique. You will be surprised how much your photos will improve after consulting a beginner's guide.

5. Lag time

In my opinion, this is the most important factor to consider. Good photo opportunities only last for a moment. When you see an expression that is just right, you should just press the button and take the picture instantly. However, this is not the case with many point-and-shoot cameras. A pre-flash is sometimes required to determine how much light the photo needs. You can have a lag time of up to two seconds and the photo opportunity may just pass you buy. So when you buy a camera look at the technical specifications and ask the sales person about shutter lag time. It is better to miss out on other options than this one.

6. Research before you buy

It is also important to do a thorough research before you spend your money on a product. There are countless educational, sales and review websites you can consult. The time you spend doing this will play an important part in making the right decision.