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Spotting scope info: Bringing it all into focus

Spotting scope info will tell you that these instruments actually are small precision telescopes designed for terrestrial rather than astronomical viewing. Often a spotting scope can be used as a photographic lens, perfect for bird watchers or nature photographers. There are models with built-in zoom lenses and changeable eyepieces to allow more flexibility for photography and observation. Spotting scope info abounds on the web. Here are some features you should look for when reading spotting scope info.

Unlike telescopes, spotting scopes display a right-side-up image to the viewer. When reviewing spotting scope info, always remember that the instrument's main function is to gather light. The more light the scope gathers, the brighter and clearer the image will be. This is directly related to the diameter of the objective lens, the large lens at the front of the device. The larger the diameter of the objective, the better the image.

Another factor to consider when sorting out spotting scope info is magnification (power). Magnification means how much larger the object being viewed seems as compared to naked-eye observation. For example, a magnification of 5x means that when you look through the scope what you see will seem 5 times closer than if viewed with the naked eye. In a spotting scope, magnification is actually expressed as a relationship between the optics and the eyepiece. To determine magnification, divide the focal length of the spotting scope by the focal length of the eyepiece. For example, if the objective is 1000 and the eyepiece is 25, the magnification is 40x. Be sure to select a spotting scope that allows the eyepiece to be changed. This will give you maximum flexibility when observing.

You may also see the terms "field of view" and "close focus" in spotting scope info or specifications. Field of view is the width of the picture you see, usually expressed as the width of the area you can see at 1000 yards and is usually given in feet. Close focus refers to the ability of the instrument to get up close -- the minimum distance between the scope and the object being viewed.

To get more spotting scope info and to learn about terms like exit pupil, coatings, and eye relief, click one of the links below to read comprehensive descriptions and specifications.

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Rita Liotta is a successful author and publisher at www.1st-at-camping-gear.com.  Recommending camping equipment, tents, backpacks, GPS, binoculars, sleeping bags, hiking boots, camping stoves, containers, water purifiers, compasses, topographical maps, pocket knives & hammocks
18-05-04

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