Fujinon 7×50 WPC-XL Mariner Binoculars with Compass

• Versatile robust and lightweight binoculars which are designed for rugged use on the water
• Features a built-in compass which can be used to identify the direction of travel and measuring size and distance
• Waterproof design which is airtight and filled with nitrogen gas for fog-free use, even in wet conditions
• Perfectly comfortable for extended periods even when wearing glasses thanks to a long eye relief design
• Large 50mm objective lenses within a lightweight and durable polycarbonate body

Key Features

• Designed for use on the water
• High-precision built-in compass
• Airtight, waterproof structure filled with nitrogen gas
• Large 50mm objective lenses
• Lightweight and durable polycarbonate body
• Long eye relief design

Fujinon 7×50 WPC-XL Mariner Binoculars with Compass Summary

The Mariner series of  provides a bright image and strong performance for serious users. These Fujinon 7×50 WPC-XL Mariner Binoculars with Compass offer excellent features for use on the water, including being completely airtight and waterproof, with nitrogen gas filling.

A polycarbonate body encases the high quality optics, providing robust and dependable build-quality for demanding users, while the multifunctional compass helps you calculate your current direction of travel, as well as working out the size and distance of objects.

The long eye relief optical design ensures easy viewing with minimal eye strain, and this large 50mm objective binocular lets in plenty of light, for viewing even during dim conditions.

Fujinon 7×50 WPC-XL Mariner Binoculars with Compass in More Detail

Using the built-in compass

There are two main ways of using the compass built into the 7×50 compass type binoculars.

Identifying direction of travel

You can work out your current direction of travel relative to a buoy by calculating the difference between the number displayed when looking at the buoy and the number displayed when looking in the direction of the bow. In the example on the right, the compass reads 270° when looking at the buoy and 240° when facing the bow, indicating that the boat is traveling 30° to the left of the buoy.

Measuring size and distance

If you know either the size or distance of a target, you can roughly calculate the other. The lighthouse in this example is 10m in height and the scale is showing 40 mils. The approximate distance can be calculated with a simple equation.

Designed for the water

With an airtight, waterproof structure filled with nitrogen gas and a polycarbonate body, these binoculars are lightweight and dependable, perfect for use on the water.

Comfortable long eye relief

A long eye relief design with a maximum length of 18mm. Eye relief refers to the distance between one’s eyes and the eyepiece that still allows one to view the entire field of vision. Long Eye Relief binoculars allow one to see right up to the edge of the field of vision even while wearing glasses.

What’s in the Box

• Fujinon 7×50 WPC-XL Mariner Binoculars with Compass
• Objective lens caps
• Eyepiece rain guard
• Flotation neck strap