Binoculars, field glasses or binocular telescopes are a pair of identical or mirror-symmetrical Symmetry generally conveys two primary meanings. The first is an imprecise sense of harmonious or aesthetically pleasing proportionality and balance on either side of an axis; such that it reflects beauty or perfection. The second meaning is a precise and well-defined concept of balance or "patterned self-similarity" that can be telescopes An optical telescope is a telescope which is used to gather and focus light mainly from the visible part of the electromagnetic spectrum for directly viewing a magnified image for making a photograph, or collecting data through electronic image sensors mounted side-by-side and aligned to point accurately in the same direction, allowing the viewer to use both eyes with binocular vision Binocular vision is vision in which both eyes are used together. The word binocular comes from two Latin roots, bini for double, and oculus for eye. Having two eyes confers at least four advantages over having one. First, it gives a creature a spare eye in case one is damaged. Second, it gives a wider field of view. For example, a human has a when viewing distant objects. Most are sized to be held using both hands, although there are much larger types. Small, low-power binoculars for use at performance events are known as opera glasses (see below). Many different abbreviations are used for binoculars, including glasses and bins
Unlike a monocular A monocular is a modified refracting telescope used to magnify the images of distant objects by passing light through a series of lenses and prisms; the use of prisms results in a lightweight telescope. Volume and weight are less than half those of binoculars, making it easy to carry telescope, binoculars give users a three-dimensional image: the two views, presented from slightly different viewpoints to each of the viewer's eyes, produce a merged view with depth perception Depth perception is the visual ability to perceive the world in three dimensions. Although any animal capable of moving around its environment must be able to sense the distance of objects in that environment, the term perception is reserved for humans, who are, as far as is known, the only beings that can tell each other about their experiences. There is no need to close or obstruct one eye to avoid confusion, as is usual with monocular telescopes. The use of both eyes also significantly increases the perceived visual acuity Visual acuity is acuteness or clearness of vision, especially form vision, which is dependent on the sharpness of the retinal focus within the eye and the sensitivity of the interpretative faculty of the brain, even at distances where depth perception is not apparent (such as when looking at astronomical objects).
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Baltimore Sun
Field guides and binoculars are recommended. The North Tract is on Route 198, between the Baltimore-Washington Parkway and Route 32. ...
