Binoculars or binocular telescopes, actually two identical symmetrical telescopes attached together. Because they are in the same direction, allowing them to see a much greater distance than with the naked eye. A binocular has a large advantage over a single telescope as you can see through both eyes and they are easier to hold steady with two hands.
The Purpose Optic lens diameter generally determine the amount of light that can temporarily stiffening akan show that the ratio of focal length. An example is the 8 X 35 (eight times magnification and objective diameter of 35 mm) or 7 X 50 (seven times magnification objective and 50 mm diameter). In the second example,
the first has a high magnification (8 for 7) but allows less light (35 mm smaller than 50 mm) compared with the second. If you need glasses to use the low light, buy the largest diameter of the goal.
Construction and Coatings lens Unfortunately, in the optical instruments used for the image (such as telescopes, camera, microscope, etc.) are often visible light and distributed to the display. This can reduce the contrast. Reflection can be reduced by adding layers to the optical. Some of the techniques is the latest phase-corrected prism and prism dielectric Coatings. Binoculars designed from Porro prism design is usually more than one light roof prism design, but new technology that reduce the difference (Porro prism binoculars that still has the highest value at the price lower).
Selecting binoculars Roof-prism models are generally lighter and smaller than Porro models, but you'll usually pay more. If the glasses are filled and sealed with nitrogen gas, they will not with the cloud condensation.
Manufacturers Include :
Bushnell Performance Optics, Docter Optik, Canon, Eschenbach optik, Fujinon, Kowa, Leica, Optics Leupold & Stevens, Inc, Miyauchi, Minolta, Nikon, Olympus, Pentax, Optolyth, Russian Military binoculars, Steiner, Swarovski Optik, Vixen, Vortex Optics, WDtian, Yunnan State, optics Zeiss
To read more about the telescope, visit electronicsme
Construction and Coatings lens Unfortunately, in the optical instruments used for the image (such as telescopes, camera, microscope, etc.) are often visible light and distributed to the display. This can reduce the contrast. Reflection can be reduced by adding layers to the optical. Some of the techniques is the latest phase-corrected prism and prism dielectric Coatings. Binoculars designed from Porro prism design is usually more than one light roof prism design, but new technology that reduce the difference (Porro prism binoculars that still has the highest value at the price lower).
Selecting binoculars Roof-prism models are generally lighter and smaller than Porro models, but you'll usually pay more. If the glasses are filled and sealed with nitrogen gas, they will not with the cloud condensation.
Manufacturers Include :
Bushnell Performance Optics, Docter Optik, Canon, Eschenbach optik, Fujinon, Kowa, Leica, Optics Leupold & Stevens, Inc, Miyauchi, Minolta, Nikon, Olympus, Pentax, Optolyth, Russian Military binoculars, Steiner, Swarovski Optik, Vixen, Vortex Optics, WDtian, Yunnan State, optics Zeiss
To read more about the telescope, visit electronicsme
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