Spotting scope: Difference between revisions
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A '''spotting scope''' is a small portable high-power [[telescope]] with added [[optical instrument|optic]]s to present an [[erect image]], optimized for the observation of terrestrial objects. They are used for various outdoor activities such as [[birdwatchers|birdwatching]] and other [[naturalist]] activities, for [[hunting]] and [[target shooting]] to verify a marksman's shot placements, for tactical [[ranging]] and [[surveillance]], and for any other application that requires more [[magnification]] than a pair of [[binoculars]], typically on the order of 20× to 60×. |
A '''spotting scope''' is a small portable high-power [[telescope]] with added [[optical instrument|optic]]s to present an [[erect image]], optimized for the observation of terrestrial objects. They are used for various outdoor activities such as [[birdwatchers|birdwatching]] and other [[naturalist]] activities, for [[hunting]] and [[target shooting]] to verify a marksman's shot placements, for tactical [[ranging]] and [[surveillance]], and for any other application that requires more [[magnification]] than a pair of [[binoculars]], typically on the order of 20× to 60×. |
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Spotting scope [[tripod]]s are essentials for your birdwatching other naturalist activities toolkit. It's important to have a good quality stable and sturdy spotting scope tripod for maximum performance and viewings. Since spotting scopes provide high [[magnification]], it can often lead to instability caused by vibrations. A good quality tripod helps reduce the vibrations and provides a steady base on which your scope can be mounted on |
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The [[Optical telescope#Light-gathering power|light-gathering]] power and [[Optical telescope#Angular resolution|resolution]] of a spotting scope is determined by the diameter of the [[objective lens]], typically between {{convert|50|and|80|mm|in|1|abbr=on}}. The larger the objective, the more massive and expensive the telescope. |
The [[Optical telescope#Light-gathering power|light-gathering]] power and [[Optical telescope#Angular resolution|resolution]] of a spotting scope is determined by the diameter of the [[objective lens]], typically between {{convert|50|and|80|mm|in|1|abbr=on}}. The larger the objective, the more massive and expensive the telescope. |
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The optical assembly has a small [[Refracting telescope|refracting]] [[objective lens]], an image erecting system that uses either image erecting relay lenses or prisms ([[Porro prism]]s or [[roof prism]]s), and an [[eyepiece]] that is usually removable and interchangeable to give different magnifications. Other telescope designs are used such as [[Schmidt-Cassegrain telescope|Schmidt]] and [[Maksutov telescope|Maksutov]] optical assemblies. They may have a ruggedised design, a mounting for attaching to a [[tripod]], and an [[ergonomics|ergonomically]] designed and located knob for focus control. |
The optical assembly has a small [[Refracting telescope|refracting]] [[objective lens]], an image erecting system that uses either image erecting relay lenses or prisms ([[Porro prism]]s or [[roof prism]]s), and an [[eyepiece]] that is usually removable and interchangeable to give different magnifications. Other telescope designs are used such as [[Schmidt-Cassegrain telescope|Schmidt]] and [[Maksutov telescope|Maksutov]] optical assemblies. They may have a ruggedised design, a mounting for attaching to a [[tripod]], and an [[ergonomics|ergonomically]] designed and located knob for focus control. |
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| ⚫ | [[Eyepiece]]s are usually interchangeable to give different magnifications, or may consist of a single variable "zoom" eyepiece to give a range of magnifications. Magnifications of less than 20× are unusual, as are magnifications of more than 60× since it can lead to poorer image brightness, a narrow [[field of view]], and show too much image shake, even on a tripod. The eyepiece mount layout can be "straight-through" (the eyepiece is on the same axis as the body of the scope), or "angled" (the eyepiece is at an angle of usually 45 degrees to the body of the scope). |
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If you are just curious about a [[Birdwatching|birding]] spotting scope tripod, let me know you there are many different factors that come into consideration while choosing a spotting scope tripod for [[birdwatching]].<ref>{{Cite web|url=https://medium.com/@savleen77_92381/best-spotting-scope-tripods-for-birdwatching-4d9a4d4e8228|title=Best Spotting Scope Tripods for Birdwatching|last=Sur|first=Savleen|date=2019-04-15|website=Medium|access-date=2019-06-12}}</ref> |
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The high magnification of spotting scopes makes them prone to vibrations, so they are often used with tripods. Tripods helps reduce vibrations and provides a steady base on which your scope can be mounted. |
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| ⚫ | [[Eyepiece]]s are usually interchangeable to give different magnifications, or may consist of a single variable "zoom" eyepiece to give a range of magnifications. Magnifications of less than 20× are unusual, as are magnifications of more than 60× since it can lead to poorer image brightness, a narrow [[field of view]], and show too much image shake, even on a tripod. The eyepiece mount layout can be "straight-through" (the eyepiece is on the same axis as the body of the scope), or "angled" (the eyepiece is at an angle of usually 45 degrees to the body of the scope). |
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==See also== |
==See also== |
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Revision as of 07:42, 18 June 2019
 | This article needs additional citations for verification. (November 2007) |
A spotting scope is a small portable high-power telescope with added optics to present an erect image, optimized for the observation of terrestrial objects. They are used for various outdoor activities such as birdwatching and other naturalist activities, for hunting and target shooting to verify a marksman's shot placements, for tactical ranging and surveillance, and for any other application that requires more magnification than a pair of binoculars, typically on the order of 20× to 60×.
The light-gathering power and resolution of a spotting scope is determined by the diameter of the objective lens, typically between 50 and 80 mm (2.0 and 3.1 in). The larger the objective, the more massive and expensive the telescope.
The optical assembly has a small refracting objective lens, an image erecting system that uses either image erecting relay lenses or prisms (Porro prisms or roof prisms), and an eyepiece that is usually removable and interchangeable to give different magnifications. Other telescope designs are used such as Schmidt and Maksutov optical assemblies. They may have a ruggedised design, a mounting for attaching to a tripod, and an ergonomically designed and located knob for focus control.
Eyepieces are usually interchangeable to give different magnifications, or may consist of a single variable "zoom" eyepiece to give a range of magnifications. Magnifications of less than 20× are unusual, as are magnifications of more than 60× since it can lead to poorer image brightness, a narrow field of view, and show too much image shake, even on a tripod. The eyepiece mount layout can be "straight-through" (the eyepiece is on the same axis as the body of the scope), or "angled" (the eyepiece is at an angle of usually 45 degrees to the body of the scope).
The high magnification of spotting scopes makes them prone to vibrations, so they are often used with tripods. Tripods helps reduce vibrations and provides a steady base on which your scope can be mounted.
See also
- Milliradian, a measurement used in scope reticles intended for shooting
- Digiscoping, long-range videography using a spotting scope with a digital video recorder mounted to the eyepiece
- List of telescope types