how to Buy digital camera

Choices

Digital cameras come in many sizes, shapes, and price ranges. Since you will be living with your decision to purchase a particular make and model for many years, it is a good idea to carefully weigh the various options available before buying a camera. Break the decision down into a checklist of factors to help determine which camera is best for you. Consider image quality, performance, ergonomics, features, and price. Also consider whether you will just be taking family snap shots or something more elaborate.

First decide how much you are willing to pay for a digital camera. You may need to adjust this figure up if you want and need a lot of manual control and features. Decide on camera body size, and features that you may actually use. Then look for a camera in your price range.

Digital cameras can be grouped into four types:

Compact, Ultra compact, Super zoom, Enthusiast, and digital SLR, or D-SLR.

Compact

This is by far the most popular camera category. It represents the best value for the average user. Cameras in this group take reasonable quality pictures and have a good set of features. However, these cameras don’t have many pre features or perform as well as more expensive cameras. Unless you need a higher-end or smaller camera, you should consider this type of camera first.

Ultra compacts

Are small enough to fit into tiny bags or pockets but performance is usually sacrificed in the interest of style and size. Not a good choice if you want decent pictures.

Enthusiast

These full-sized models offer more precise controls, better lenses, and more features. They produce better images, suitable for larger prints. They often include zoom lenses, faster performance, exposure bracketing, high resolution, and manual controls for shutter speed, f-stop, and white balance. This category is a good choice if you don’t want to spend a lot of money on a more expensive camera but still want a fair number of advanced features.

Super zooms

These cameras are the same as “enthusiast” except that they include at least 10X optical zoom lenses. Some of these cameras can correct for camera shake by using image stabilization software. This is a great feature for long zooms.

D-SLR

D-SLRs are the high end of digital cameras, with true reflex through-the-lens viewfinders, interchangeable lenses, good control over exposure and color, and lots of accessories.

The many professional features and functions these cameras possess almost match those of conventional 35-mm film cameras. They also produce the best images of any digital camera type.

Avid amatures and pros are the typical users for this class of camera. However, unless you plan to use the many manual features you will not get your moneys worth. Choose a camera in this class if you want the best print quality at 8x10 or higher.

Features

Mega pixels

You would think that a 6MP camera would produce better images than a 5MP one but that is not always the case.

Mega pixels are a measure of quantity (the amount of data captured), not quality. A digital camera's image quality is not based solely on mega pixels, but on an entire system. More important than the number of pixels is the actual pixel size. The bigger the pixel size the better they can record detail in the shadows and highlights. Larger sensors generally produce greater dynamic range, higher sensitivity, and better signal-to-noise ratio, mostly because they have room for bigger, more light-sensitive pixels.

So instead of just going for the largest mega pixel count when comparing cameras, ask about other important factors such as image quality.

Image quality

Image quality is a more useful measure than the number of mega pixels. Most digital cameras will produce good images, with color, sharpness, and dynamic range that will satisfy most people.

If all you want to do is e-mail your photos or make small or low quality prints at home then any digital camera will do. However, if you want good quality professionally looking 8x10 prints or larger, then the camera’s image quality is very important. Make sure you tell the sales person what you intend to do with the images so that you will be shown the most appropriate camera for your needs. A good guide is to go for at least 3MP or better and ask about image quality.

Digital cameras are slow

Most digital cameras take time to start up and be ready to shoot. They also have a recycle time between each shot. This can be annoying if you need to react fast and shoot a number of frames quickly. Make sure you can live with a camera's picture taking speed by testing it out in the store before buying.

Is the feature set right for your needs?

Taking digital pictures can be as simple as pointing the camera and pressing the shutter button. But digital camera models are available that provide as much control over exposure, color, dynamic range, and so on as you choose to use. It is recommended that you choose a camera that has the key features that you might actually use and takes better images, rather then one that has a ton of features but takes poorer quality images.

Ergonomics and style

Take time to practice holding and using a camera in the store to get a feel for how easy and comfortable it is to use. How does it feel to hold? How about the size and weight? Does it feel sturdy or flimsy? Are the controls easy to reach and understand?  Are menus easy to understand and navigate?  And finally, how stylish does the camera look?

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