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 Waterproof Marine BinocularsAt OpticsPlanet.com we offer the best brand name waterproof Boating and Marine Binoculars from Bushnell, Nikon, Canon, Tasco, Steiner, and many others! Most of our boating binoculars are completely O-ring sealed and nitrogen-purged for waterproof, fog proof protection in any season or weather conditions. We carry a number of models that Stabilized Image binoculars with high speed internal gyrostabilizing system that are perfect for the use on a boat in the sea or in any other moving conditions such as aboard an aircraft, land vehicles, sea vessels or other constantly moving, shaking, vibrating environments. The best Image Stabilizing Binoculars from Canon, Nikon, and Bushnell are always in stock!
HOW TO CHOOSE A MARINE BINOCULAR
GENERAL NOTES:
- A marine binocular is a binocular that is used onboard a ship or boat and as such, it will have some fairly specific features. The vast majority of marine binoculars will be the classic 7x50, although other sizes can be used if they have the necessary features.
MAGNIFICATION - (the first number in a binocular)
- Because the deck of a ship or boat is not a stable observing platform, magnification must be kept low for the sake of steadiness. 7x is by far the most popular magnification in a marine binocular and for good reason. A 7x binocular is easy to hold but also powerful enough to be a serious observation tool. Higher magnifications can be used, but unless they are combined with IS (image stabilization) systems, any gain in image detail may be lost to image unsteadiness. In fact, under marginal conditions, you may see more detail with a steady 7x than a shaky 10x.
OBJECTIVE SIZE - (the second number in a binocular)
- The classic 7x50 marine binocular will have a 50mm lens. This is not just a matter of image brightness, though for night use, the 50mm objective will transmit more light than smaller objective. A 50mm objective, when combined with 7x magnification also produces a large exit pupil - the beam of light that leaves the eyepieces. This large exit pupil is much more forgiving than a smaller exit pupil when the eyes are not lined up precisely on the eyepieces, as might happen when you try to observe form the deck of a moving boat.
PRISM TYPE
- The classic 7x50 marine binocular is a porro prism, though, optically there is no reason a roof prism could not be used. The porro prism body, however, has more room to accommodate extras like a rangefinder and compass that are often found on a marine binocular. The robust body of a porro prism may also provide a firmer grip during inclement weather. The best porro prisms will be made of Bak-4 glass.
FOCUS TYPE
- Both IF (individual eyepiece focus) and CF (center focus) systems are found on marine binoculars.
- IF offers the freedom from focusing when viewing objects at medium and long distances - the usual range for marine use. Once set for your eyes initially, an IF binocular needs no focusing for objects beyond 30 or 40 yd. Just raise the binocular to your eyes and look. The advantage on the deck of a moving boat is obvious here. IF focusing systems are also the easiest to seal and make waterproof and they have fewer moving parts than CF systems. For this reason, they are also popular with the military. (Our military uses a version of the Steiner 7x50)
- Center focus is a more versatile system. If you plan to use a binocular at all ranges, from close-in to far away, say for birding or other applications, this is the system to choose.
OPTICAL QUALITY AND PRICE
- With porro prisms the most popular design, prices for the best grade of marine binocular will usually not peak out as high as in standard field binoculars.
- For casual boating, you can get a very useable marine binocular for $100-150.
- For a more serious marine binocular with solid optics and solid construction, you will be in the $250 to $400 range. Binoculars in this class will give many years of good service.
- For those who want the most rugged instrument and the finest in optical quality, there are best binoculars by Steiner and Zeiss.
COMPASS
- A compass in a binocular allows you to pinpoint the exact bearing of a target and share it with other observers who are using a compass in their binoculars. The compass also gives you a basic idea of direction at a glance. Because a compass is magnetic, however, it is subject to magnetic deviation which varies from location to location. No compass will ever be as accurate as a GPS.
- On many models, the compass is illuminated for use at night (requires batteries)
RANGEFINDER
- In a marine binocular, this means a old-fashioned grid rangefinder, not a laser rangefinder. These grid rangefinders require you to know the size of the object (height or width) if you wish to calculate distance. If you wish to calculate the height or width of an object, you will need to know the distance. Math is required
Distance = actual height x 1000 Actual height = distance x scale height
Scale height 1000
- You can use any unit you wish since these equations are a ratio, but you must use the same units for all variables. For example, if you use feet for the height of an object, you will get a distance in feet, not yards or meters. You can convert to other units after you have your answer.
EYE RELIEF
- The good news here is that most 7x50 binoculars have good eye-relief. This means that you can use the binocular while wearing your glasses and still see the entire field of view.
WATERPROOFING
- This is a no-brainer in a marine binocular. Suffice it to say, anything less is inappropriate.
LENS COATINGS
- For marine use, you may need a binocular most when conditions are at their worst. For this reason, a good marine binocular will be fully multi-coated (FMC) for maximum image brightness. A model that is multi-coated (at least some of the lenses multi-coated) is next while a fully-coated (single layer coating only) model ranks the lowest in image brightness.
ARMORING
- A true marine binocular will not only be armored, but also built extra tough to withstand dropping and sliding around on the deck of a boat. A good armor coat also helps to protect against the ravages of salt in ocean environments.
WEIGHT
- Since a marine binocular is not usually worn around the neck full-time and because a marine binocular must be built tough, weight will usually exceed what you find in a standard field binocular.
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Celestron Oceana 7x50 Binocular 71187
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Tasco Offshore 7x50mm Porro Prism Waterproof Marine Binoculars OS19 w/ FREE UPS
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Nikon StabilEyes 14x40 VR Marine Land Image Stabilized Binoculars 8211
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Steiner 7x50 Marine Binoculars 575 w/ FREE UPS
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Nikon 7x50 OceanPro Binoculars with FREE UPS
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Celestron Oceana 7x50 WP-IF Binocular 71188 w/FREE UPS
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Nikon 7x50 IF Sports / Marine Compass Binoculars 7443 w/ FREE UPS
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Canon 10x42 L IS WP Waterproof Image Stabilized Vari-Angle Prism Binoculars 0155B002 w/ FREE UPS
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ATN 7x50 Omega Military Binoculars with Built in Step Rangefinder w/ FREE UPS
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Bushnell Marine 7x50 Roof Prism Waterproof Binoculars w/ Compass, floating neck strap 285070
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Steiner 295 Commander XP 7x50 Marine Binoculars (No Compass) with FREE UPS
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Nikon 12x32 Marine StabilEyes VR Binoculars - 8212 with Free UPS
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Steiner Merlin 8x50 Binoculars 428
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Celestron Outland 8x42 Waterproof Binoculars 71167 w/ FREE UPS
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Steiner 8 x 30 Military R Mil. Spec. Tactical Binocular w/ US Army M-22 reticle 8x30 481 w/ FREE UPS
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Steiner 7x50mm Police Binoculars 646 w/ FREE UPS
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Barska 7x50mm Deep Sea Water Proof Binoculars AB10158 w/ FREE UPS
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Tasco OffShore 7x50 OS36 Waterproof Binoculars w/ Compass + Free UPS
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Canon 8x25 IS Compact Image Stabilized Binoculars 7562A002 w/ FREE UPS
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Konus Blue Cup 7x50 Waterproof Marine Binoculars 2310 w/ FREE UPS
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Nikon 7x50 Sports & Marine Binoculars 7442
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Tasco OffShore OS541 Binoculars w/ Compass 7x50 $100 OFF
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Nikon 7x50 OceanPro Binoculars with FREE UPS
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Zhumell 7x50 Waterproof Binoculars with Free UPS Shipping
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Oberwerk 8x40 Mariner Series Binoculars w/ FREE UPS
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Pentax 8x25 UCF WP Seies Waterproof Compact Binocular with Case - 62608 w/FREE UPS
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Barska 7x50 mm Deep Sea WP Binoculars AB10798 w/ FREE UPS Ground Shipping
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Konus 8x42 DCF Waterproof Roof Prism Titanium Binoculars 2313 w/ FREE UPS
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Nikon 8x25 Prostaff Waterproof Binoculars 7483 w/FREE UPS
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Bushnell H2O 8x26 Binoculars 150826 w/ FREE UPS
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Waterproof Marine Binoculars
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