Binoculars Photography Shack
Binoculars View Everything
By Cedric B Georges
Necessity is the mother of invention. That has been
true for thousands of years. If a person needs to see
something in the distance and comes up with a way to
do so without moving farther towards the object, then
an optical system has been employed.
These optical systems, such as binoculars, are used
by many different types of people, from military personnel
to outdoor enthusiasts. Binoculars for recreational
and occupational use have brought about many new inventions
within the optical field, and no doubt, as more people
pick up a set, a future generation of outstanding products
will be developed.
Binoculars Provide A Sense Of Depth Perception
Binoculars are made by linking two identical telescopes,
mounted side by side, and aligning them to point in
the same direction. In so doing, the viewer is presented
with a sense of depth perception, as opposed to a monocular
telescope, which provides an image with no depth.
Earlier designs relied upon a convex and concave lens
pair. While effective for low magnification, higher
levels of magnification were unavailable. Newer designs
rely upon prisms to manipulate the image, allowing lighter,
powerful and more compact binoculars to be constructed.
Additionally, modern optical coatings can improve image
brightness, color and contrast.
Magnification, Objective Diameter And Field Of View
Depending on the intended use, different optical components
create different optical parameters. Among those parameters
are: magnification, objective diameter and field of
view. Magnification defines the magnifying power. The
objective diameter is the measurement of the objective
lens, usually in millimeters, determining how much light
can be gathered to form an image.
The field of view specifies how wide an area can be
viewed at a given range, and is commonly done by using
the magnification times the objective diameter. For
example: 10x50 would define a 10x magnification with
a 50mm objective lens. Often these parameters are listed
near the eyepiece.
A Large Range Of Binoculars
From high powered, platform mounted systems, to hand
held opera glasses, binoculars come in a variety of
configurations to meet virtually any need or price point.
Marine binoculars, with water resistant coatings and
large objective lenses are found on most ships at sea.
A 7x to 12x magnification, with 30 to 50 mm objective
lenses are predominant for outdoor use. Amateur astronomers
are concerned with the ratio of magnification to objective
size, so a lower magnification will provide a larger
field of view, providing improved images of larger objects.
Sets specially designed for astronomy will have high
magnifications and large (70 - 80mm) objectives.
Be warned however, that the more specialized they are,
the higher the price will be.
About the Author:
Cedric B Georges has written a number of articles on
digital photography including 35mm
Cameras, Best
Digital Camera, First
5 Megapixel Camera, People
in Photos, Image
Editor Software, Cheap
Digital Cameras, Digital
Camera Memory Card, Baby
Birth Announcements, Leather
Photo Albums.
Keep a lookout as more articles from this popular author
on this website in the near future.
More Binoculars Facts....
If you are looking for a way to get your family outdoors
and get them interested in bird watching or viewing
other animals in their natural habitat, binoculars are
the way to go about this.
These optical devices are lenses that magnify the image
so that you can see objects far away without the danger
of getting close and putting yourself or the animal
in danger. Some of these are not cheap and can run into
hundreds of dollars depending on the brand and where
you purchase them but you can still find great deals
if you know where to look.
It is a time to enjoy the blossoming life and see all
that there is to see with the new born animals and older
animals venturing out. The best way to observe these
creatures is through the telescopic lenses of binoculars.
You can find a pair of these miraculous wonders in many
sporting good stores and online.
Any sporting enthusiast or bird watcher can attest
that there is one piece of equipment that is absolutely
essential and that is a binocular. Binoculars are optical
devices used to look at objects far away.
They are not as powerful as a telescope but they do
the job pretty effectively. They allow the sporting
and bird watching enthusiast to get an up close view
of animals without putting themselves or the animal
in danger.
|
|
| Copyright
© 2007 - 2012 The Photography Shack, All Rights Reserved |
|
