How to Choose a Digital Camera
Choosing a digital camera can be intimidating. Study the sales
literature, read the reviews, talk to the camera salespeople, and
you'll come away with a head full of technical jargon, but probably
not much idea of what camera to buy. Even if you're able to pick
up on some of the more important features, and wade through the
quagmire of megabytes, megapixels, and mega-headaches, you'll quickly
learn that different camera manufacturers use different terms for
the same thing -- pretty much leaving you right back where you started!
Resolution
Today's digital cameras have a "megapixel rating." This
is an indication of the number of pixels (picture elements) the
camera's image sensor uses to create the picture. The number of
megapixels produced by a camera determines, in large part, the size
of the prints you can make from it. A 1-megapixel camera makes prints
up to 4 x 6 inches, a 1.3- to 1.5-megapixel camera makes 5 x 7-inch
prints, and so on. If you plan to do any digital photo editing,
make sure you get the highest resolution you can afford. When you
begin with a large (high-resolution) picture, it's easy to scale
(enlarge or reduce) it with little or no loss of picture quality.
The chart below gives you a rough idea of how many megapixels you'll
need for a given print size. These aren't hard-and-fast rules, as
you can always print larger images than the sizes shown here; but
if you make prints larger than the recommended sizes in the chart,
they will most likely be blurred or have "jaggies" (a stairstepped
effect) along the edges of your subject because of the way the software
adds or subtracts pixels when you re-size an image.
Megapixel
Rating |
Image Size
(pixels) |
Print Size
(inches) |
Less than 1.0 |
640 x 480
800 x 600 |
Web |
1 megapixel |
1,154 x 852 |
4 x 6 |
1.3-1.5 megapixels |
1,280 x 960, 1,280 x 1,024
|
5 x 7 |
2.0 megapixels |
1,600 x 1,200 |
8 x 10, sharper 5 x 7 |
3+ megapixels |
2,048 x 1,536+ |
Sharper 8 x 10 |
Pre-Setting Balance & Focus Settings
To reduce or eliminate the delay between pressing the time when
you press the shutter button and taking the picture, you can pre-set
the balance and focus settings.
If your camera has a lock exposure setting, use it to store the
settings. Otherwise, press the shutter button halfway down and hold
it until you're ready to shoot.
Tips
- Don't review your pictures on your digital camera. The LCD screens
drain the battery.
- Choose "optical zoom" over "digital zoom,"
which simply crops the picture.
- Buy a stand-alone memory card reader to save the battery and
makes transferring photos faster and easier.
- Back up your photos to brand-name CDs or DVDs.
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