Before you purchase a pair with one of these features, try them out. They are recommended for people with corrected vision, and if your eyes have different prescriptions, you may not be able to get a clear image. Ergonomics A binocular, like a camera, should feel comfortable in your hands and easy to manipulate. Three basic body styles are available. European, the most common, features a separate barrel housing the objective lens.
Compact bodies have a single, solid, lightweight body.
Boaters with small hands may have difficulty adjusting large binoculars. Armor Rubber armor provides a sure grip when wet, and better skid-resistance when lying on deck. Because the rubber protects against shock and other onboard abuses, these models don't need cases or covers, and require less pampering. To be labeled waterproof, a binocular must be able to withstand submersion at a set depth for a specified time period, usually 16' for five minutes. To prevent oxidation and fogging, some manufacturers replace the oxygen in the body with dry nitrogen.