Hawke Endurance ED Marine 7x50 Binoculars w/ Compass – Blue
The Hawke Endurance ED Marine 7x50 Binoculars with Compass (Blue) are a serious marine-grade tool built for navigation, safety, and reliable long-range viewing at sea. With 7× magnification and large 50mm lenses, they deliver a bright, steady image that stays easy to use even on moving water or in low light. The ED glass, phase-corrected BAK-4 prisms, and fully multi-coated optics provide sharp, high-contrast views with good colour accuracy and reduced chromatic aberration. What sets this model apart is the built-in illuminated compass and rangefinding reticle, helping you take bearings and estimate distance while out on the water. Finished in a rugged, rubber-armoured, waterproof and fog-proof body with a floating strap, it’s designed for boating, sailing, and coastal use where durability and navigation support matter most.
-Nathan (Technical Advisor)
Robust and marine-ready, the Endurance ED Marine 7x50 Binoculars are built to deliver precision and clarity for boaters, sailors, and seafarers. Designed with Hawke’s System H5 optics and ED glass, these binoculars offer exceptional light transmission and sharp, true-colour views, even in challenging light.
Tailored for marine use, this model includes an illuminated built-in compass and rangefinding reticle, allowing you to determine bearings and distances on the water with confidence. With a generous 7x magnification and a wide field of view of 7° (367ft @1000yds), these binoculars are ideal for scanning horizons and tracking moving vessels with ease. The waterproof, fog-proof chassis and floating neck strap provide reliability and safety in unpredictable conditions.
- Optical System System H5
- Magnification 7x
- Objective Lens 50mm
- Colour Blue
- Lens Coating Fully Multi-Coated
- Field of View 367ft @1000yds / 122m @1000m
- Field of View (°) 7°
- Apparent Field of View (°) 49°
- Eye Relief 0.8in / 21mm
- Exit Pupil 0.28″ / 7.1mm
- Eye Cups Twist-Up
- Eyecup Diameter 1.8in / 45mm
- Interpupillary Distance 2.2 - 3″ / 55 - 75mm
- Close Focus 8.2ft / 2.5m
- Prism Type Roof
- Prism Glass BAK-4
- Prism Coating Silver Mirror Coating
- Dioptre Type Right Eye
- Tripod Mounting Thread Yes (¼" - 20 UNC)
- Height 6.9″ / 175mm
- Width 4.8 - 5.3″ / 121 - 135mm
- Weight 32.3oz / 915g
- Extra-low Dispersion (ED) Glass reduces colour fringing for sharp, detailed images
- System H5 Optical Design enhances brightness and detail across the field of view
- Fully Multi-Coated Lenses provide superior light transmission and image fidelity
- Silver-Coated BAK-4 Roof Prisms deliver edge-to-edge clarity and high resolution
- Twist-Up Eye Cups with position stops for comfortable viewing with or without spectacles
- Generous Eye Relief of 21mm for long viewing sessions without eye strain
- Close Focus Distance of 2.5m ideal for examining nearby buoys or detail on deck
- Integrated Illuminated Compass for clear directional readings in low light
- Rangefinding Reticle to calculate distances from known-size objects
- Rubber-Armoured, High-Grip Body ensures a secure hold in wet conditions
- Tripod Mountable (¼" - 20 UNC thread) for extended or steady use
- Nitrogen Purged to prevent internal fogging, waterproof and sealed for marine use
- Hawke No-Fault Lifetime Warranty for complete peace of mind
Rangefinding Reticle
The rangefinding reticle can be used to calculate distance between you and the object you are looking at. This can be extremely important in nautical environments assisting as a visual check and as a failsafe to on-board navigation systems.
The rangefinding reticle is made up of a grid-like pattern of lines that are segmented into Milliradians, known sometimes as Mils. A milliradian is a unit of angle that can be used to calculate the distance of a known sized object.
- Hawke Endurance ED Marine 7x50 Binoculars w/ Compass – Blue
- Instruction manual
- Lens cloth
- Protective pouch
- Protective carry case
- Floating neck strap
- Objective lens covers
- Ocular lens covers
- CR1225 battery
1. What makes the compass version different?
It includes a built-in illuminated compass, allowing you to take directional bearings while observing.
2. What is the rangefinding reticle for?
It helps you estimate distance to objects of known size, useful for marine navigation and identifying vessels.
3. What magnification does it have?
It has 7× magnification, chosen for stability on moving water and wide-area scanning.
4. What size are the lenses?
It uses 50mm objective lenses, giving strong light-gathering ability for brighter views in poor conditions.
5. Is it good in low light?
Yes—this is one of its strengths. The 7×50 setup performs very well at dawn, dusk, and overcast conditions thanks to the large exit pupil.
6. Is it waterproof and fog-proof?
Yes, it’s nitrogen-purged and fully sealed, designed to withstand marine environments and prevent internal fogging.
7. Does it float if dropped in water?
It includes a floating neck strap, helping reduce the risk of losing it overboard.
8. Is the compass always accurate?
It’s designed for northern hemisphere use (UK/USA regions), so performance can vary outside those zones.
9. Is it heavy?
Yes, it’s fairly substantial at around 915g, typical for a full-size marine 7x50 with compass.
10. Who is it best suited for?
It’s ideal for sailors, boaters, and coastal navigators who want a bright, stable binocular with built-in navigation tools.
- Hawke No-Fault Lifetime Warranty
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Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
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If you need assistance, call us at +44 (0)1803 611895 (Optics Warehouse) or email [email protected].
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