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| Choosing the right binocular. |
Selecting a binocular that you are comfortable
using, and that best suits your needs, is
as important as knowing how to use binoculars.
Magnification refers to how much closer the binocular
makes the object you are viewing appear.
Magnifications of 7x or 8x are common, and
are adequate for most types of birding. The
first number listed on the binoculars is
the magnification (example: on 8x42 binoculars,
the magnification is 8x )
The objective lenses, the second number listed on the binoculars
(8x42) in millimeters, determine the light-gathering
capability of the binocular. The larger the
diameter of the objective lens, the greater
its light-gathering capability. Objective
lens diameters of 35 to 40 mm are common
and generally adequate.
The field of view refers to how wide an area can be viewed
at 1,000 yards. Look for binoculars with
field of view of at least 350 ft.
Eye relief is important if you wear glasses. While wearing
glasses, you will not be able to put your
eyes directly against the eyepiece of the
binocular. If you wear glasses, try to choose
binoculars with eye-relief of 15mm-20mm.
Consider weight - remember, you may be using the binoculars
for extended periods of time, and if they
are heavy, they will be difficult to steady,
and may be uncomfortable on your neck.
Finally, consider price. You don't need to spend a fortune to get
a good binocular. Most importantly, test
various binoculars at an optics dealer, and
test the binoculars of fellow birders you
meet in the field.
Remember...
If you wear eyeglasses, be sure that the
eyecups on the binoculars are down.
Make sure that the diopter adjustment is
correctly set for your personal eyesight.
Check with your salesperson to learn how.
Locating birds in your binoculars may take
a little bit of practice. Raise the binoculars
without taking your eyes off the bird. Note
its distance and position relative to a landmark
(tree, cloud, etc.). It may help to practice
tracking pets, cars, or airplanes when you
first get started.
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