These binoculars are ready to improve your world view!And you can only get them from West Marine!Whether you're trying to spot the legendary Ivory-billed Woodpecker (last reported sighting in 2004) or just want to see which of your offspring is in the lead as they race across the lake on their SUPs, our Shoreline 8 x 42 Waterproof Binoculars have all the features you need. With their compact size and weighing in at a mere 20 ounces, they're easy to stash in your jacket pocket, backpack, tackle box, carry-on luggage, hydration pack, golf bag, handbag, beach tote, waterproof hatch in your kayak...you get the idea! And since they're waterproof you don't have to worry about getting caught in a sudden downpour or having your four-legged companion slobber on them.MagnificationJust what does the 8 x 42 mean with these binoculars The 8 identifies the power of the lens. Objects will appear eight times closer than they do with the naked eye. The 42 stands for the diameter of the objective lenses (the ones furthest from your eyes) in millimeters. The larger the objective lens, the more light can enter the binoculars. The more light they can gather, the brighter objects will appear—particularly important in low light conditions like cloudy days or when fog or rain are part of the equation.Field of ViewThis specification is expressed with 1,000 yards as a standard for reference. These Shoreline binoculars have a field of view of 357 feet at 1,000 yards. That means you can see a 357-foot wide object at a distance of 1,000 yards.Center FocusAre these binoculars hard to focus Not at all. A diopter (that ridged collar on the right side eyepiece) adjusts for the difference between your eyes (if there is any). Once you set that, simply turning the center focus knob will adjust the focus for both eyes simultaneously. This set-up makes it easy to view something quickly since you only have to turn the center focus knob when you point your binoculars at objects of varying distances.PrismsThis pair of binoculars has BaK-4 prisms that use a dense, fine barium crown glass which eliminates internal light scattering and produces sharper images. Without prisms, objects would appear upside down due to the