Basically a digital camera is a deice use to capture pictures without
the use of films. Unlike the conventional camera, the digital camera
does not rely on mechanical and chemical processes. It has a built in
computer and records the images it captures in an electronic form.
Having and operating one does not even require the use of electricity.
Since
the images that a digital camera captures is in electronic form, it is a
language recognized by computers. This language is called pixels, tiny
colored dots represented by ones and zeros that make up the picture that
you just took. Just like any conventional cameras, a digital camera is
furnished with a series of lenses that focus the light and creates the
image that you want to capture. The difference here is then; a
conventional camera focuses its light on a film while a digital camera
focuses the light into a semiconductor device that electronically
records the light. Remember the built in computer, it comes in here and
breaks this information to digital data resulting to all the features of
the digital camera.
Another feature of the digital camera is
that it has a sensor that converts light into electrical charges. A
charge coupled device or CCD is an image sensor that is found in a
digital camera. While other low-end digital camera use complementary
metal oxide semiconductor or CMOS as an image device, it can still
become better and more famous in the future but most engineers are do
not believe that it can replace the CCD for higher-end digital cameras.
A
collection of tiny diodes, the CCD gathers electrons when they are
struck by photons or the light particles. Each diode or photosite is
sensitive to light, meaning that the brighter the light, the number of
the electrons gathering will be larger
The price of a digital
camera nowadays have been depreciating, one of the main reasons of this
is because of the introduction of CMOS image sensors, this is because
CMOS sensors are less expensive and are easier to manufacture than CCD
sensors. A CCD and CMOS sensor works the same way at first, by
converting the light electrical charges into photosites. Simply putting
it, is to think that a digital camera works in such a way as thinking
that the millions of tiny solar cells, each of which forms a part of the
whole image. Both CCD and CMOS do this task using different methods.
When shopping for the best digital camera, take note of these key features.
Image quality
Check
the resolution of the camera. The higher the resolution, the more thou
will be able to enlarge your picture without the grainy or the
out-of-focus effect that we all want to avoid.
Lens
Choose
a digital camera with better digital zoom. The digital zoom of the
camera will enable you take the pixels from the image sensor and
incorporate them to make an image.
Power. Always opt for rechargeable
batteries, they can always come in handy, plus you don't waste as much
money on the disposable ones.
Options
So you can brag to
your friends how good a photographer or artist you are. Or choose the
one that gives options that best cater to your lifestyle, so you won't
ever whine how you never get the right pictures.
Memory
If
you're a photo freak, be sure that you have enough memory in your
camera to take all the wacky, freaky, funny and just about any photo you
can. Think 512MB if you're a photo junkie and takes pictures of just
about anything.
Computer Interface
Always make sure that
it is compatible with your PC, laptop, palmtop or whatever your local
picture printer software is, you don't want to go running around the
whole state or the country looking for a computer that's compatible with
your digital camera, wont you?!
Physical
If you are going
to be bringing it everywhere, choose a handy and portable digital
camera. This way, it won't always feel as heavy and bulky as those
cameras that you see professional photographers are always dragging on
their neck. Don't they ever get tired of that?!
These are just
the basic things you have to look for in a digital camera when you buy
one. A digital camera is so great that it is quickly replacing all
conventional cameras in the market, with all its technology and
portability, truly the digital camera is the future of cameras.
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