Marine Binoculars & Optics | Sonark Marine

Professional marine binoculars and optical equipment designed for navigation, safety, and marine observation. Our selection features waterproof, fog-proof marine binoculars from Hawke Optics with magnifications from 7x to 12x and objective lenses from 32mm to 80mm. Premium models include integrated compasses for bearing measurements and rangefinding reticles for distance calculation. Advanced ED (Extra-Low Dispersion) glass delivers superior color accuracy and image clarity. Nitrogen-purged construction with BAK-4 prisms ensures fog-free performance in all weather conditions.

Waterproof

Waterproof & Fog-Proof

Nitrogen-purged, O-ring sealed for all-weather marine use

Compass

Compass Models Available

Integrated illuminated compasses for navigation bearing measurements

Premium Optics

ED Glass Optics

Extra-Low Dispersion glass with BAK-4 prisms for superior clarity

Marine binoculars and boat optics for navigation and spotting

Marine Binoculars & Monoculars — Hawke Optics Endurance ED Series

Marine binoculars in this collection are from Hawke Optics Endurance ED series — designed specifically for on-water use in saltwater environments. ED (extra-low dispersion) glass delivers sharper, higher-contrast images than standard glass, reducing color fringing and eye fatigue during extended use on the helm. All models are waterproof, fog-proof (nitrogen-purged), and feature BAK-4 roof prisms for a compact profile. Available in 7x50 binoculars and 7x42 monoculars, with and without built-in compass for bearing readings. The compass model also includes a rangefinding reticle for estimating distance to an object of known height.