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Find
the Best Digital Camera for Your Needs
and Maximum Enjoyment |
by:
Dave
Saunders |
Digital
Cameras have become a common site wherever
you go. If you're getting ready to purchase
your first digital camera, or maybe you're
looking to replace one you already have,
it is best to familiarize yourself with
the knowledge of what makes one digital
camera different from another and choose
the one that is right for you. In this article
we'll cover one of the most significant
factors in picture quality. This is the
"digital film."
Just like with a film camera, the digital
camera has a lens which brings light into
focus on a bed of light sensitive material.
In the digital camera, that light sensitive
material is a circuit bed called a "CCD."
The CCD plays the same role as film in a
film camera and the lens allows light to
fall onto the CCD which is then converted
into a digital image. The quality of the
lens can make a significant difference in
the clarity of that image. Very cheap digital
cameras may even use a piece of plastic
as the lens, which will usually have an
uneven surface and light transmission. This
will be noticeable in the picture but may
not be an issue for a security camera or
a web cam. Better quality digital cameras
will have ground-glass lens and high-end
digital cameras will even have interchangeable
lenses as do high-end film cameras. The
lens still plays the important role of bringing
light clearly to the CCD surface for a distortion
free picture.
A CCD also provides an interesting advantage
to the digital camera. It is possible to
automatically adjust light sensitivity to
improve contrast, shoot in dim light, or
even take black and white, sepia or infrared
and ultraviolet light pictures with the
touch of a button. Because any of these
images are stored as the same data on the
memory card, a digital camera can offer
unsurpassed versatility without the need
to change film types. Not all digital cameras
have these features built in, but they are
options you may see in some cameras. While
the possibilities are cool, ask yourself
if you that is a feature you need in a digital
camera.
With digital cameras, CCD is a grid of light
sensitive points which capture the image
for conversion into a digital image. The
number of points on the CCD is measured
in terms of "mega pixels." The mega pixel
rating is a completely new bit of terminology
and is unique to the digital camera. The
mega pixel rating is a measure of the resolution
of the camera, or its ability to store details
of am image. For example, a digital camera
with a maximum resolution of 1280 by 768
pixels (dots) comes out to a total of 983,040
pixels with which to describe the digital
image. As each mega pixel represents one
million pixels, we can see this isn't even
one mega pixel. Some digital cameras have
mega pixel ratings at 5.1 and even 7.1 mega
pixels. What does this mean to you? The
more pixels the more detail stored. If the
image is going to be viewed on a screen
or a TV, this isn't very meaningful because
video displays have resolutions which are
usually well below one mega pixel. However,
when printing on a high quality photo printer,
the difference between a 3 mega pixel digital
camera and a 5 mega pixel digital camera
can be very obvious.
Some people will try to evaluate a mega
pixel rating by how large a print can be
made from the digital camera's image. The
truth is that any digital image can be printed
to any size. The real issue is what it looks
like. Most people print their film to 4x6
prints and many are now doing the same with
their digital cameras. Ask to see printed
samples of pictures which are like the type
you would normally take and compare the
same prints between different cameras. Many
stores will try to dazzle you with colorful
still life images of piles of multi-colored
fruits and hot air balloons. Do you take
pictures like that? Probably not, so perhaps
they're not the best images to be scrutinizing.
If you take pictures of friends standing
around, use each camera to take pictures
of people standing around. Then use a demonstration
printer at the store to make prints and
look at the results. Do you see little dots
in the middle of solid colors? Does the
image look like it was taken with a poor
quality film camera? Don't seek out the
digital camera that happens to take perfect
pictures in a perfect setting, contrived
by the marketing department of the digital
camera's manufacturer. Look for the digital
camera that takes pictures you like in the
settings in which you most commonly find
yourself.
Another issue to consider is that some digital
cameras are designed for "point and click"
use while other cameras are designed with
lots of settings which must be manipulated
for optimal results. In my personal experience,
I have found that Kodak makes digital cameras
which are ideally suited for simple "point
and click" use and consistently take great
looking pictures in a wide variety of settings.
I have also personally found that digital
cameras from Nikon work best when you set
them to "manual" and do not rely on the
automatic settings. This seems to be true
of their film cameras as well. Does this
make one digital camera better than another?
Only if one fits your needs and skills,
and the other does not.
There are many magazines available on digital
cameras today. Most recognize these differences
in digital camera quality, based on needs
and intended use of the owner. Before buying
your new digital camera, pick up a few of
these magazines and familiarize yourself
with the latest reviews. Remember that the
pros and cons are still written "through
the lens" of the reviewer. If you see a
negative about a digital camera that you
otherwise like, ask yourself if that negative
is meaningful to your needs. Next ask yourself
if that negative might be meaningful to
your needs as you become more experienced.
If the answer is yes, ask yourself if you
would still be using that camera as a more
experienced photographer in the future or
would you perhaps sell it and buy an entirely
new digital camera? It's unlikely that the
digital camera you buy today is going to
be the only one you'll ever have. Buy the
digital camera that most reasonably meets
your needs and how you normally plan to
take pictures.
Memory cards and battery life are also consideration
factors which will be covered in other articles.
For now, I hope this information has taught
you more about the workings of a digital
camera and some of the factors to consider
when choosing one. Take your time and learn
a bit about digital cameras before your
purchase. Sure, it's not like buying a car,
but photography is a very personal experience
and the right digital camera will truly
make a difference in your enjoyment of capturing
the moment with digital photography.
About the author:
Dave Saunders is a nutritional educator
and published author.
He enjoys writing on his many hobbies and
passions.
You can find other news and articles on
digital cameras at
www.aboutdigitalcameras.net
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