by: Gareth Lenzy
Focus on Features When Buying a Digital Camera
Being well informed about the main digital camera features before shopping means you will know which are worth the extra cost. Reading reviews and talking cameras with friends will be helpful, but here are the key points to consider.
The first thing you will notice when looking at digital cameras is the term megapixel is used often. Pixels are the colored dots that make up a digital image. The term megapixel means one million pixels. Most models are between two and five megapixels.
The more megapixels the sharper the image, generally, but the size of enlargement is the important issue. You will be okay with three megapixels for enlargements up to an 8x10, but for larger photos you'll want more. If you plan to go big, the extra expense for a five megapixel is worth it. But save your money if you will use the photos for emailing friends or to make small enlargements.
The lens, as with any camera, is a prime consideration. Cheaper digital models normally feature fixed lenses, which limits your scope considerably. Zoom lenses, with their greater flexibility to frame and bring images close, are worth the extra expense unless your use will be very basic. A 3x zoom will give you reasonable range for typical shots, but wildlife shots would benefit from a 10x. Be sure that you're getting an optical rather than a digital zoom, which merely enlarges the pixels and gives poorer image quality.
For even greater flexibility, you would need the interchangeable lenses that come with professional cameras. While you would have the potential for magnificent photos, the jump in price is huge.
Consider how you will use your camera. Some models have the capability to take both video and still pictures. A combination model is more expensive, but you won't have to purchase a separate video camera.
Size is a key factor. Will you want to carry around the camera if it is large? Or will you make better use of a compact model that fits easily into a pocket? While image quality is typically better in the larger models, the smaller cameras do very well and likely get more use.
Virtually all digital models use a memory card or stick for storing images, but usually you will need more memory than is provided with the camera so budget for buying extra. The amount of memory you need depends on how many pictures you will take. In general, look for memory that will hold between fifty and one hundred pictures. When making a photography purchase, make sure you can get replacement memory easily and inexpensively for your model.
Heavy use of batteries is typical of digital cameras, especially when the LED screen is turned on. Some major manufacturers use a proprietary battery that's expensive to replace. Most useful is a battery that's widely available and easy to recharge.
You will be given software with your purchase to download images onto your home computer. This software allows you to store pictures on your computer, email them to family or edit pictures for a variety of projects.
To correct serious problems with images, or for more professional projects, additional software will likely be required. Be sure your computer supports the software that comes with your camera.
About The Author
Gareth Lenzy contributes to the Camera site YO Camera, which offers a free newsletter at http://www.yocamera.com.
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Can A Contact Lens Really Get Lost In Your Brain?
Can A Contact Lens Really Get Lost In Your Brain?
by: Steve Cogger
Did you lose your contact lens under your upper eyelid? HELP!
If you ever get a contact lens misplaced under your upper lid the first step is to stay relaxed. There is never really a reason to panic. Know that it is not at all dangerous to have a lens under your upper lid, usually it does not even hurt. At best it is a nuisance, nothing more.
Also know that your lids are attached to your eye, so the lens can not get lost behind your eye, in your brain, or up in your forehead. Let me repeat that, a contact lens can never get lost behind your eye and go in to your brain. It is impossible and will never happen.
So how do you get a contact lens out from under your upper lid? There are two basic techniques depending on what style of lens you are wearing.
Removing a Soft Contact Lens From Under Your Upper Lid:
1) Look all the way down towards your nose.
...
Can A Contact Lens Really Get Lost In Your Brain?
NXT Unbreakable Sun Lenses
by: Benjamin W J Teo
Before the creation of NXT, optical lenses such as sunglasses were not impact resistance. And could cause serious injury to your eyes if the lenses were to crack or shatter.
Now with a breakthrough in technology, there is a universal solution for the optical market. NXT is made of soft, flexialbe and comes with a shatterproof guarantee. It protects the eyes from impacts, cuts, scratches, chemical and atmospheric agents.
?NXT is the greatest innovation in the past 40 years in the field of unbreakable transparent optical polymers.?
What is NXT made of?
The patented NXT technology was originally developed by Simula Technologies in the early 1990?s
but only for military use. The military need a material that was: transparent, lightweight and bullet proof and more superior than Polycarbonate.
In 1996 Simula Technologies partnered further develop this material and called...
NXT Unbreakable Sun Lenses
How Do Colored Contact Lenses Work?
How Do Colored Contact Lenses Work?
by: Steve Cogger
The ability to change your eye color simply by
putting on a contact lens is becoming more popular
every day. Many people like them for fun and never
really care how colored contact lenses work. If
you are a little more inquisitive, read on and I
will tell you exactly how colored contact lenses
work.
The concept of colored contact lenses is to cover
the iris with a new color. In general, neat
colored contact lenses come in two varieties;
opaque colors and enhancement tints. Both designs
work well depending on the iris color they are
covering. One amazing feature of colored lenses is
that they never look exactly the same on one
person as they do on another.
Opaque lenses are intended to change an eye’s
color entirely. Opaque lenses can be used to
change a green eye blue or brown eye green. They
usually have a clear pupil opening...
How Do Colored Contact Lenses Work?
Bifocal Contact Lens Basics
by: Jay Moncliff
As we age, many of us notice that we can?t read as well as we used to. We hold things out further and further, literally at arm?s length, until friends and relatives inevitable begin joking about our arm?s getting shorter.
For many of us, presbyopia is a fact of life.
Simply defined, presbyopia is the inability to focus on items in close range.
This condition is caused by the lens in the eye becoming less and less flexible as we age.
Unfortunately, most of us will need corrective lenses and even bifocals at some point as this condition worsens.
Until recently, bifocal wearers had few options when choosing corrective eyeware.
Glasses with bifocal lenses were the most common option.
Luckily, no-line bifocal lenses were developed, and the glasses became somewhat more attractive.
Some struggled with the ?one contact lens? option, called monovision,...
Acuvue Bifocal Contact Lenses may be the answer for you.
by: Garry Allen
You may be getting to that age, even though you may not want to admit it, that you can't see the stop sign from 50 feet away anymore. But you also can't see it clearly when you're 5 feet away from it either.
Nearsightedness, or the inability to see long distances, is
something you may have been born with, this new sight problem
you are experiencing is a natural problem brought on by
advancing age.
Never fear though, because just as your eye doctor had a fix
for your first eye disorder, he or she can help with the
second one as well.
The fix is called Acuview bifocal contact lenses. Acuview
bifocal contact lenses can provide vision correction for
both problems simultaneously.
You may have feared that you would have to wear those
bookwormish bifocal glasses that your grandmother used...