|Whether you’re trying to watch the local football game close up or scout a big buck across the canyon, a quality set of binoculars is essential. But have you ever given any thought to how they were developed and how they function?
Almost from the birth of the first telescope in the 17th century, inventors were already contemplating mounting two telescopes side by side. Early binoculars were made with glass lenses and generally employed Galilean optics (named for the Italian scientist for his improvements over previous telescopes).
Galilean binoculars had a curved optical element (lense or mirror) that captured light from the object being viewed, focusing the light rays to produce a real image. Additionally there was an inverted eyepiece. Together, these elements had the ability to produce an erect, or right-side-up, image. Unfortunately, they also produced a narrow field of vision and low magnification abilities.
Basically, binoculars are two telescopes mounted side-by-side. The same principles that apply to telescopes also apply to binoculars. However, binoculars have a clear advantage over monoculars. With a monocular, it is usually necessary to close one eye in order to view your target without visual confusion. Using just one eye makes visual perception hard and does not present a three-dimensional image like binoculars.
Binoculars are great for both terrestrial and astronomical viewing and quality binoculars are a necessity for sportsmen, travelers, birdwatchers and nature lovers. But not even the best binoculars don't block out all viewing distractions like glare, ambient light, wind and dust.
Field Optics Research has created an exciting binocular accessory that improves the overall performance of your binoculars by sealing out light and weather elements. Binoculars have a long and varied history and will continue to develop over the years, and EyeShields will be there to enhance their best optical capabilities. “See” what the fuss is all about, try EyeShields today!