Compasses & binoculars

For maritime use, the 7×50 has proven itself as a classic: good low-light performance, a steadier image in rough seas, and sufficient range. Those who primarily use binoculars in daylight, on inland waters, or from a motorboat can also opt for more compact models. For professional applications, waterproof, shock-resistant housings, a non-slip rubber coating, large focusing wheels, and a wide field of view are particularly important.

Binoculars with an integrated compass are helpful if you frequently take bearings (e.g., buoys/lighthouses, checking collision courses, orientation in poor visibility). In commercial shipping and on demanding voyages, this saves time because you can combine bearing-taking and observation. For occasional use, standard marine binoculars plus a separate hand-held bearing compass are often sufficient.

A handheld bearing compass is ideal for taking bearings, training, and as a backup. A fixed-mount compass is used for continuous course guidance at the helm. Many boats have both: a fixed-mount compass for the course, and a handheld bearing compass for taking bearings, navigation, and as a backup. When choosing a handheld bearing compass, look for good readability and lighting for night navigation.

Clear scales, good readability at dusk, reliable damping (the compass rose settles quickly), and operation that works even with gloves are important. For binoculars, waterproofing, fog resistance, and a secure grip (rubberized, strap/pouch) are also key. For rugged use, impact protection and sturdy mechanics are crucial.

With compasses, the main considerations are mounting and installation dimensions (for built-in compasses), the appropriate power supply voltage (12/24 V onboard power supply, if electric), and accessories such as mounts, covers, or cases. With binoculars, “compatibility” usually refers to practical aspects: suitable floating straps, a case, and, if necessary, adapters for a tripod or bracket—as well as ergonomics at your helm.

Install the built-in compass as far away as possible from sources of magnetic interference (speakers, large masses of iron, cable bundles, tools, radios) and adhere to the manufacturer’s recommended distances. Connect the lighting correctly to 12/24 V and secure it. After installation, check the compass (compare with bearing/GPS course in calm water) and compensate if necessary, provided the model is designed for this.

After contact with saltwater, rinse with fresh water, allow to dry, and clean the lenses with a suitable cloth. Do not leave binoculars exposed to direct sunlight for extended periods; protect compasses from impacts. Regularly inspect compasses: clear liquid (no bubbles/cloudiness), steady rose, intact housing. This ensures readability and accuracy are maintained for years.