Beginning Optics Advanced Optics Terms
Provided by Vortex

Your guide to the design, function and features of binoculars and spotting scopes.
For hundreds of years we've used optics such as binoculars
and spotting scopes to augment our vision and to see our
world in new and exciting ways. A binocular is essentially a
hand-held double-barreled telescope and a spotting scope is
a shortened, single-barrel telescope. Both are multi-purpose
instruments that expand our own eyes' abilities to see and
are useful for a number of different activities including
(but certainly not limited to):
- Hunting
- Birdwatching
- General nature observation
- Hiking & camping
- Astronomical observation
- Sporting events & concerts
Although perceived as technical in nature, there are really
only a few things you need to know about binoculars and
spotting scopes in order to make an informed decision
and purchase.
What are binoculars & spotting scopes for?
Binoculars and spotting scopes exist to both magnify and
clarify images viewed through them. They make things
look bigger and images viewed through them are clearer,
have finer detail, and have a more three-dimensional
appearance than when seen with the unaided human eye.