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 Something:My New Binoculars

Today's binoculars are so much better in so many ways. The Audubon Equinox HP is smaller, 5.8 inches by 5.1 inches and weighs only 23.6 ounces. To top that, the magnification is a full power higher (8x) and the objective lens is smaller (42mm), but the field of view is comparable at 336 feet at 1000 yards. The Stokes DLS 8 x 42 has a field of view of 383 feet (same as those old Manons) but are 5.5 inches by 4.875 inches and only weigh 26 ounces. Both of these newer binoculars are using the more modern optical technology, roof prisms.Roof prisms have several advantages over the porro prisms. One is the newer binoculars are more ergonomic and feel more comfortable in hand. Roof prisms allow for internal focusing which is very important. Internal focusing means that a binocular can be waterproofed and fog proofed easily. Both the Equinox HP and the DLS are Nitrogen purged so one does not have to worry about being in the field in rainy, moist conditions.

Another advantage of today's binoculars is the ability to close focus. The DLS has a close focus of 4.5 feet, making them wonderful instruments for those interested in butterflies as well as birds and other wildlife. I wouldn't even dream of trying to view butterflies close up with the Manons; I'm afraid it is just an exercise in futility.I stare with fondness at Dad's gift, but I carry those newer binoculars to the field. The images and detail I now observe are so much better. Had I possessed today's binoculars when I was a boy, I might have learned to identify much more quickly. Technological advances have their day, and we should be glad for it.

Source: Big Porro Binoculars,   Monocular Telescope

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