Spotting scope
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A spotting scope is a compact lightweight portable
The
The optical assembly has a small
Spotting scope eyepieces are usually interchangeable to adapt for different magnifications, or may have variable zoom to give a range of magnifications. Magnifications less than 20× are unusual, as are magnifications more than 60× since the latter can lead to poorer image brightness, a narrow field of view and too much image shaking, even on a tripod. The eyepiece mount layout can be "straight-through" (the eyepiece is on the same axis as the scope body), or "angled" (the eyepiece is at an angle to the scope body—usually 45 degrees).
The high magnification of spotting scopes makes them prone to image disturbance from vibrations, so they are often stabilized with tripods or (less commonly) monopods, which provide a stationary and steady platform. Tripod heads can be used to control any required movements of the scope.
Gallery
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Anornithologist uses a spotting scope at Rossitten Bird Observatoryin 1939. This spotting scope has no zoom eyepiece, but three interchangeable eyepieces with different magnifications -
A spotter (right) uses a spotting scope to assist a marksman. Spotting scopes are used on target ranges to avoid walking to the target to verify the placement of hits -
Biathlon coaches use spotting scopes to verify and optimize competitors shot placement -
Spotting scope on its tripod
See also
- Aircraft periscope
- angular measurement used in reticledscopes intended for precision shooting
- Digiscoping, long-range videography using a spotting scope with a digital video recorder mounted to the eyepiece
- List of telescope types
References
External links
