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Trying to look at things over water is a challenge within itself. This means that the binoculars used must really be made for this type of exploration. They also need to have plenty of features that will allow them to not only do the job, but do it perfectly. This article is going to discuss the types of things that you should look for when purchasing a high quality set of marine binoculars. We’ve also listed our Top 3 Marine Binoculars for 2017.

Marine Binoculars

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Fog-proof and Waterproof Features

Quite naturally, marine binoculars must be waterproof. Just know that there are various types of available waterproofing. A lot of vendors say that they have waterproof binoculars, but they are only protected against water. Make sure that you get binoculars that contain an o-ring seal and are nitrogen purged.

This signifies that the body has been charged with dry nitrogen gas that stops the fogging, which usually occurs when the temperatures change very quickly. This will make sure that your marine binoculars are protected from all types of water and moisture and will not fog up. This also means that the inside of your binoculars will have protection from corrosion, which will be an added benefit if you like to use them while out on the ocean.

If you are concerned that your binoculars might fall into the water, then consider purchasing the kinds of binoculars that can remain underwater for a long duration of time. If you also have a floating strap, you will have the ability to get your binoculars out of the water and dry them off for the next time that you take them out at sea.

Best Magnification for Marine Binoculars

When out at sea, your goal will be to find subjects that are in a distance, more so than what you would expect if you were on dry land. Basically, the larger the magnification, the better your view will be.

However there is a major problem with this logic. The larger the magnification, the more likely that you will have problems trying to stabilise your image. So, considering the fact that the deck of a boat is not stable anyways, this means that your expensive high powered binoculars will be almost impossible to use. Your image will never be stable enough to view.

This is why the majority of marine binoculars usually have magnifications of about 7x. This will give you enough power to view your images without causing any stabilisation problems.

Stabilising Binoculars

If 7x magnification is too low for you then you should get binoculars that have image stabilisation built into them. Basically, use marine binoculars that have 7x magnification and if you need more, then use IS binoculars such as the Fujnon Techno-Stabi 14×40 binoculars or other waterproof stabilised binoculars.

boating binoculars

Objective Lens Size

This specifies the size of the lens at the tip of your binoculars. Large objective lenses can get more light in which will result in a brighter image. This is something that should be taken into consideration if you don’t have that much light in a particular space or if you plan on using your binoculars during early morning, dusk or night time.

Naturally, larger lenses will mean larger and heavier binoculars. Usually marine binoculars are used on a boat so this is not a problem with them. Most marine binoculars have an objective lens of 30mm to 50mm.

FOV or Field of View

Your FOV is the horizontal width of what you can view when looking through your binoculars. Even though most marine binoculars FOV is not a critical factor such as the FOV of someone who is looking as fast moving wildlife, you should not overlook it.

With a wide field of view it is not difficult to instantly locate subjects when you are looking through your binoculars. When on the water, with a wide FOV it will be easy to spot different subjects and you can see more of them in your view. For example, you could see other boats in the distance.

A main disadvantage of having a wide FOV is that you won’t have as much detail as that with high magnification binoculars. A low magnification will mean a wider FOV. A FOV that is too wide will distort your images along the borders. So, you need to get a wider field of view at the right magnification.

For marine use, 7×50 binoculars are the perfect balance between magnification, lens size and FOV.

Fujinon binoculars

Size and Weight

When it comes to the size and weight of your marine binoculars, it really does not matter. You can get what you want. They are usually kept on a boat and only utilised when on the water. If you want to use them for other things besides boating adventures, then this might become a problem.


A lot of marine binoculars are available with an integrated compass. Some of these compasses are digital. You can pinpoint the bearing of a particular subject. It will depend on your needs, but this is something that is an added bonus. If you find that you do need this particular feature then make sure that you get a compass that illuminates during the night time hours. Quite naturally, these will require the usage of batteries.

Floating Straps

Have you ever considered what would happen if your binoculars fell into the water? Some marine binoculars can float; the majority of them do not. So, get a floating strap that you can attach to your binoculars. This will make sure that they stay on top of the water long enough for you to get them out. Certain models such as the Fujinon 7×50 Mariner are available with a floating neck strap. Some marine binoculars are not available with this particular feature, which means that you will have to purchase them on your own.


Our Top 3 Marine Binoculars for 2017

** Note: All 3 binoculars recommended below are suitable for eyeglasses users **


Fujinon 7X50 WPC-XL Mariner

Current Price: $365


It is important that marine binoculars are not only waterproof but also stable when you are out on the water with high waves. The Fujinon Mariner 7×50 WPC-XL have both of these features covered. They are 100% waterproof and even float in water when used with the included floating neck strap. They are also Nitrogen-purged fog proofed, comfortable to hold and use and highly durable.

The 7x magnification will allow you to look at things in the distance, but also give you the ability to view your subjects without any stabilisation problems. This is especially functional whenever the waves are high. The image quality on these is superb and highly rated by Fujinon (FujiFilm) binocular users.

The very wide (7 degrees) field of view together with the bright images produced by the 50mm lenses are simply remarkable. These features are handy for marine use as you can spot approaching boats easily even in poor light conditions.

The Fujinon 7×50 WPC-XL marine binoculars have a digital compass, for day and night use, visible through the eyepiece. The compass is universal so works in both Southerns and Northern Hemisphere. If you don’t need the compass you can save around $50 and choose the Fujinon 7×50 WP-XL Mariner. These are exactly the same binoculars excluding the compass on top.

The Fujinon 7×50 WPC-XL Mariner are our top-pick marine binoculars as well as our best selling waterproof model. They are currently discounted to $365 which is a bargain for what you get with them.

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Bushnell 7×50 H2O Binoculars

Current Price: $269

Bushnell 7X50 H2O Binoculars

If you want good quality marine binoculars without breaking the bank then the Bushnell 7×50 H2O are a good pick. Bushnell are experts in producing excellent optics at remarkably low prices and this marine model is no different. The 7x magnification is handy for using the binoculars in and out of the water. As far as waterproofing, fog proofing and wide field of view this model matches any other high quality marine binocular.

Although the Bushnell H2O has perfectly good lenses you might find the Fujinon binoculars optically better with sharper and brighter images. In conclusion the Bushnell 7×50 H2O are a steal for their price range ($269) and a solid choice as marine binoculars.

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Fujinon 14X40 Techno-Stabi IS Binoculars

Current Price: $1699

Fujinon 14X40 Techno-Stabi Binoculars

For the professional mariner or more frequent user, there are probably no better than the Fujinon 14X40 Techno-Stabi binoculars. These were specifically designed to provide a stable image in ANY kind of condition. You will enjoy the strong 14x magnification while still be able to view, follow and focus on your subject with ease. The IS mechanism can be powered by either AA batteries or a power adaptor. They can also be used as “normal” binoculars without the image stabiliser.

Another cool feature of the Fujinon 14X40 Techno-Stabi binoculars is that they stabilise the image in every direction and every possible movement of the viewer. This makes them ideal for use on airplanes, helicopters or boats. This model is a favourite by Australian navy, law enforcement and other professionals. Optically the Fujinon 14X40 Techno-Stabi deliver high quality, bright images with excellent sharpness and colour reproduction.

On the downside, these binoculars are on the heavy side at around 1.2 Kg. They are also not the most beautiful product on the market but don’t let their looks fool you – these are a brilliant powerful tool for marine use. The Fujinon 14X40 Techno-Stabi binoculars are available on Procular at a highly discounted rate of $1699 including free delivery and a hassle-free Australian manufacturer’s warranty.

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Posted in Blog by Adam Murray, Procular.

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