Tips on Buying A Digital Camera

There are many varieties of digital camera in the market, so you can really get confused what exactly you need. Arriving at the store to find rows of shiny digital cameras with a huge array of features and vastly different price tags can be overwhelming, so do some research before you head to the store. Read about digital cameras and familiarize yourself with the features available and the meanings of buzzwords like pixels, optical zoom and memory. Here are some tips for buying a digital camera.
1.Megapixels
To many people, the megapixels is the most important on buying a digital camera. But, in fact, megapixels are not everything. A greater number of megapixels won't always mean better photos. Listed below is a summary of what you can expect from different resolutions:
1.0 Megapixel: Perfect for up to 6"x4" prints
2.0 Megapixel: Perfect for up to 6"x8" prints
3.0 Megapixel: Perfect for up to 8"x12" prints (A4)
4.0 Megapixel: Perfect for up to 10"x15" Prints (A3)
5.0 Megapixel: Perfect for over 10"x15" Prints.
    Canon 400D has 10 megapixels, but to many people, it isn’t necessary. I suggest you think about the usage of your images and make your selection based on that.
2. Zoom
With Digital Cameras you will hear about two types of zoom, Optical Zoom and Digital Zoom. Optical zoom allows you to zoom in on your subject without losing quality. Digital zoom will let you take pictures from a distance, but your quality will suffer the more you zoom in on a subject. Optical zoom is definitely worth considering for all kinds of pictures – even just the casual ones. 3.LCD
Many of the LCD screens on camcorders don't perform well in bright sunlight, making it next to impossible to see what you're recording. There are little visors you can get to shade the LCD screen from the sun, but that's also one more thing to carry. If you can find a camcorder with a great LCD screen, you'll be better served. The new Canon 450D has large 3" LCD screen. It's great to look at and makes pixel-peeping much more fun to do.
4. Lens
Unless you're working to a tight budget, your next priority should be a zoom lens. Just as with 35mm compacts, the standard lens on a digital camera generally has around a 38mm equivalent focal length. This makes it very difficult to fill the frame with your subject and show any real detail, and a zoom means you can get in much closer.
5. Storage card
Storage cards come in different shapes and sizes. The first thing you need to know is which card your digital camera takes. Read the manual that came with your camera or visit the manufacturer's Web site to ensure that you know what type of card is right for your camera. The larger the memory capacity on the card, the more pictures you can store on it. Naturally, the higher the storage capacity, the higher the price will be. The speed of the storage card is also an important consideration. Storage cards with faster speeds are often labeled as a "pro series" card, as they're sought after by professional photographers who might want to hold down the shutter button to take multiple shots at once. Faster storage card speeds are also ideal for shooting video because they will capture the maximum frames-per-second for smoother motion.
6. Think about the “extras”
Besides the camera itself, you'll find most stores stocked with a number of accessories which including camera case, spare batteries/recharger, filters (and other lens attachments), tripods/monopods, external flashes, reflectors and so on. Some retailers will bundle such extras with cameras or will at least give a discount when buying more than one item at once. Keep in mind though that what they offer in bundles might not meet you needs.
The above is my advice on buying a digital camera. I hope it will be helpful.