Opticron Marine 7x50 Binoculars
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Opticron Marine 7x50 Binoculars
Professional Marine Binoculars for Boating, Wildlife Observation & Astronomy
Built to perform in the harshest environments, the Opticron Marine 7x50 Binoculars deliver outstanding optical performance, exceptional low-light capability and rugged waterproof construction. Designed for marine enthusiasts, sailors, wildlife observers and astronomers, these premium binoculars provide bright, stable images in challenging conditions where reliability matters most.
Featuring large 50mm objective lenses, premium fully multi-coated optics and a classic Porro prism design, the Opticron Marine 7x50 is equally at home aboard a yacht, on coastal walks, observing wildlife or exploring the night sky.
Designed for Marine Environments
The Opticron Marine 7x50 has been engineered specifically for use on the water.
Its moderate 7x magnification provides a naturally stable image that's easier to hold steady aboard moving boats compared to higher-powered binoculars, making it ideal for:
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Sailing
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Boating
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Yacht racing
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Coastal navigation
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Fishing
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Harbour observation
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Offshore wildlife spotting
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Marine surveying
The large exit pupil also delivers bright, comfortable viewing in changing light conditions, from bright sunshine to dusk.
Premium Porro Prism Optical System
The traditional Porro prism design maximises optical performance by providing exceptional depth perception and outstanding image quality.
Benefits include:
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Bright, vivid images
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Excellent three-dimensional depth
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Wide field of view
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Outstanding edge-to-edge sharpness
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Superb contrast
Enlarged Porro prisms further improve cross-field resolution and maximise light transmission for exceptional viewing performance.
Fully Multi-Coated Optics
Every air-to-glass surface features premium fully multi-coated optics to deliver the brightest possible images.
This advanced optical system provides:
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Excellent light transmission
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High contrast
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Natural colour reproduction
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Reduced reflections
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Improved performance in low-light conditions
Whether you're scanning the horizon at sea or observing wildlife at sunrise, you'll enjoy sharp, detailed views.
Outstanding Low-Light Performance
The combination of 7x magnification and 50mm objective lenses makes these binoculars particularly effective in lower light conditions.
Ideal for:
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Dawn wildlife observation
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Evening birdwatching
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Coastal viewing
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Marine navigation
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Twilight observation
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Astronomy
The generous light-gathering ability allows you to continue observing long after smaller binoculars begin to struggle.
Comfortable Viewing with Long Eye Relief
Long eye relief eyepieces make the Marine 7x50 comfortable for both spectacle wearers and non-glasses users.
You'll enjoy:
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Full field of view while wearing glasses
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Reduced eye strain
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Comfortable extended observation
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Easy eye positioning
Perfect for prolonged periods of use both on land and at sea.
Individual Eyepiece Focusing
The Marine 7x50 features individual eyepiece focusing, allowing each eyepiece to be independently adjusted to suit your eyesight.
Once set, the binoculars maintain sharp focus over a wide range of viewing distances thanks to their naturally large depth of field, making them particularly well suited to marine environments where fast centre focusing is often unnecessary.
Rugged Waterproof Construction
Built to withstand demanding outdoor use, the Opticron Marine 7x50 features a fully waterproof, nitrogen-filled construction.
Benefits include:
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Waterproof protection
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Internal fog prevention
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Reliable performance in wet weather
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Resistance to changing temperatures
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Suitable for marine environments
Whether you're caught in heavy rain or exposed to sea spray, your binoculars remain protected.
Heavy-Duty Aluminium Body
The binocular body is constructed from a strong single-piece die-cast aluminium chassis, providing exceptional durability without unnecessary weight.
Combined with:
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Thick protective rubber armour
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Shock-resistant prism mounting
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Secure ergonomic grip
the Marine 7x50 is built to withstand years of demanding outdoor use.
Tripod Compatible
For extended observation sessions, the Marine 7x50 includes a standard tripod adapter socket, allowing secure mounting on compatible tripods.
Ideal for:
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Coastal observation
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Wildlife watching
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Astronomy
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Long-range surveillance
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Extended viewing sessions
Excellent for Astronomy
The 7x50 configuration has long been regarded as one of the finest combinations for handheld astronomy.
The large 50mm objective lenses gather impressive amounts of light, making these binoculars perfect for observing:
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The Moon
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Star clusters
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The Milky Way
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Bright nebulae
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Constellations
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Larger deep-sky objects
The stable 7x magnification allows comfortable handheld stargazing without requiring a telescope, making them an excellent choice for beginners and experienced observers alike.
Why Choose the Opticron Marine 7x50 Binoculars?
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Professional marine binoculars
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Bright 7x50 optical configuration
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Premium Porro prism design
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Enlarged prisms for enhanced image quality
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Fully multi-coated optics
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Outstanding low-light performance
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Waterproof and nitrogen filled
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Rugged die-cast aluminium body
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Thick protective rubber armour
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Long eye relief
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Individual eyepiece focusing
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Tripod adapter socket
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Ideal for boating, birdwatching, wildlife observation and astronomy
Specifications
| Specification | Details |
|---|---|
| Product | Opticron Marine 7x50 Binoculars |
| Magnification | 7x |
| Objective Lens Diameter | 50mm |
| Prism Type | Porro Prism |
| Optical Coatings | Fully Multi-Coated |
| Focusing System | Individual Eyepiece Focus |
| Waterproof | Yes |
| Nitrogen Filled | Yes |
| Tripod Mountable | Yes |
What's in the Box?
Your Opticron Marine 7x50 Binoculars include:
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Opticron Marine 7x50 Binoculars
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Soft carry case
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Wide neck strap
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Rainguard
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Integral objective lens caps
10-Year Opticron Warranty
The Opticron Marine 7x50 Binoculars are backed by a comprehensive 10-year Opticron guarantee, giving you complete confidence in their quality, reliability and long-term performance.
Why Buy the Opticron Marine 7x50 Binoculars from The Welsh Astronomy Centre?
The Opticron Marine 7x50 Binoculars are a superb choice for anyone seeking premium optical performance in demanding outdoor environments. Their bright 7x50 configuration, rugged waterproof construction and exceptional low-light capability make them equally suited to boating, birdwatching, coastal observation, wildlife watching and handheld astronomy.
At The Welsh Astronomy Centre, we specialise in quality optics for both daytime exploration and night sky observation. Whether you're scanning the horizon at sea, watching wildlife along the coast or exploring the constellations after dark, our expert team is here to help you choose the right binoculars with knowledgeable advice and dedicated customer support.
Shipping Options
Shipping Options
Fast & Reliable UK Delivery
We offer flexible delivery options across the UK, with free shipping available on qualifying orders.
- FREE Next Working Day Delivery (Mon–Fri)
On all orders £300 and over - FREE Express Delivery (1–3 Working Days)
On orders £49.99 – £299.99 - Express Delivery – £3.99
On orders under £49.99 - Standard Delivery (2–4 Working Days) – £2.99
A great value option for smaller orders - Priority Shipping – £8.99
A fully tracked, guaranteed delivery service, including Saturday delivery options
Order Fulfilment
Some items, as clearly stated on the product page, may be fulfilled directly by our partners or manufacturers. In these cases, your order will be shipped to you straight from the brand’s warehouse. This helps us provide a wider range of specialist equipment and may result in slightly different delivery times.
Returns Policy
Returns Policy
If something isn’t right, we’ll always try to help.
- Unused items in “as new” condition can usually be returned within the statutory cooling-off period
- Please contact us before sending anything back so we can advise on the safest way
- For unwanted items, return shipping is your responsibility, and original shipping may be deducted where applicable
- If a product is faulty or damaged, we’ll arrange repair, replacement or refund in line with your consumer rights — and we’ll cover reasonable return costs
Telescope shipping is expensive, and specialist — avoidable returns really do impact our business, so we always encourage customers to ask questions before buying. We’re here to help you get it right first time.
Your statutory rights are not affected.

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Frequently Asked Questions
Our FAQ section covers key information about warranties, shipping, returns, and store opening hours. Find details on manufacturer warranty cover, UK delivery options, how to return an item, and when our team is available to help.
Does it come with a warranty?
All our products are UK stock so come with manufacturers warranty
What happens if I don't like it?
We always want you to be happy with your purchase — so if you’re unsure, please ask us first. We’re always happy to give honest advice before you buy.
If the product arrives and you simply decide it isn’t for you, you can usually return it within the cooling-off period — as long as it’s unused, in perfect condition, and returned with all original packaging and accessories.
Because telescopes and optical equipment are large, delicate and expensive to ship, you’ll need to cover the cost of sending it back, and if we originally subsidised delivery, we may deduct our outbound shipping costs from your refund.
We’re a small specialist business, and unnecessary returns genuinely hurt us — so if you’re unsure at all, please talk to us first. We’d rather help you choose the right item than process a return.
How fast is shipping?
We aim to ship in-stock items as quickly as possible.
- Most in-stock orders dispatch within 1–2 working days
- Delivery usually takes 1–3 working days after dispatch (UK mainland)
- Heavier / oversized items and special orders may take a little longer
You’ll receive tracking details as soon as your order is on its way.
Astronomy equipment often requires specialist packing and trusted couriers — we do this to keep your gear safe, not to slow things down. If you need something urgently, just ask and we’ll do our best.
What's the returns policy?
If something isn’t right, we’ll always try to help.
- Unused items in “as new” condition can usually be returned within the statutory cooling-off period
- Please contact us before sending anything back so we can advise on the safest way
- For unwanted items, return shipping is your responsibility, and original shipping may be deducted where applicable
- If a product is faulty or damaged, we’ll arrange repair, replacement or refund in line with your consumer rights — and we’ll cover reasonable return costs
Telescope shipping is expensive, and specialist — avoidable returns really do impact our business, so we always encourage customers to ask questions before buying. We’re here to help you get it right first time.
Your statutory rights are not affected.
What are your opening hours?
Monday: 9.00am - 5.00pm
Tuesday: 9.00am - 5.00pm
Wednesday: 9.00am - 5.00pm
Thursday: 9.00am - 5.00pm
Friday: 9.00am - 5.00pm
Saturday: 9.00am - 5.00pm
Sunday: Closed
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