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Marine Binoculars: A Guide For Buyers

Jun 16, 2008
If you are contemplating on buying beautiful water -proof marine binoculars, it is imperative that you carefully choose from a small range of brands. Given the fact that you can use this for a very long time, procuring the best binoculars is necessary.

A binoculars' purpose differs on every type of user. If you are a marine then you are entitled to use one for your line of duty. However, this can also be beneficial to hunters, soldiers and the like. It is more used by those who work or thrive on the great outdoors. Hikers also use this on their trips. It is especially helpful when you would like to spot a bird or other animals that are at a certain distance in the wild or wherever. There are also those who go to football or baseball games and bring a pair of binoculars in order to get a closer view of the game. Of course, not everyone can afford the ticket prices to be near the fields, but these people can definitely afford marine binoculars.

Hence, magnification is the first thing you will possess if you have 7x50 binoculars. This magnification factor determines the power of your lenses and it is always followed by an "x". This means that if you use a binocular with 7x magnification you may see a view seven times more than without the binoculars.

Some experts even claim that more magnification doe not necessarily mean that it's better because as it increases, the clarity and the brightness of the image often diminish. Aside from this, the depth of the field tends to become shallower and the field of vision becomes narrower as well. Plus, the thing with this high -powered device is that they are heavier than the usual binoculars. This would mean that having this on your neck and making handshakes with other people will be very uncomfortable on your part.

Moreover, the aperture is the second thing to consider subsequent to magnification. This refers to the lens diameter that is measured in millimetres which is similar to camera lenses. Hence, the 20-25 mm ranges are typically pocket sized binoculars. This type is perfect for those nature trips. Plus, it can fit right into your camera luggage.

Nevertheless, with regards to marine binoculars, it is imperative to have at least a 50 mm aperture. This is in order to promote better light gathering which is crucial in dark, heavily shaded areas. For astronomical uses, over 50mm or around 70 to 80 mm is used for obvious reasons.

For light gathering purposes, prisms are used. This is due to the fact that they can employ high quality glass prisms, which can provide clearer and more circular exit pupils. In addition to this, glass quality can directly affect the clarity of the image. This means that the best glass can give you a clearer flat field as compared to the whole field of view, making it a higher priced product.

The exit pupil, as mentioned above, is those indicators that depict how well an image can be seen in particular conditions like sunny/bright, night/twilight/dusky views. This exit pupil can also be characterized in millimetres by having the aperture divided with the magnification factor. This is like if you have 7x50 binoculars, then your exit pupil will be 50/7 or 7.14mm, making it way better than the 10x50 ones having only a 5mm exit pupil. With this, your view will become very difficult to hold at a steady motion, especially in the water.

This means that it is way better to have a larger exit pupil due to the fact that you can have an excellent viewing convenience under the said conditions. Thus, if you are in a sunny condition, then the pupil size of a normal individual would range from 2 up to 3 mm, meaning, even the smallest exit pupil like a 7x 20mm or a 2.86mm exit pupil pair of binoculars can take in more light as compared to what your eyes needed to see.

Furthermore, this can be a match to those 7 x 50mm binoculars. However, when twilight or dusky shaded area becomes the background, you will not be able to see a clear field of view on a 7x20mm. On this type, a 7x50mm binocular is better because of its larger exit pupil.

Furthermore, Porro Prism versus the Roof prism designs is mostly discussed by people who are confused by their uses. To settle this account: Porro Prisms are the bigger, classic binoculars that have two offset barrels and are connected by a centre axis rod. They tend to give a wider field of view and crisp sharp images. In contrast to this, the roof prism is sleeker in design and is more compact. This is even without the gaps between the barrels and centre axis. Plus, this is more durable and less prone to contamination by some elements; although, of course, it is more expensive. With this fact, it will just come down to the better judgement of the user, especially with regards to how it can be beneficial to him or her.

Lastly, being a waterproof type of device is a very essential feature of this binocular. This is for the reason that there will be times wherein you will be exposed to rain showers. When you go on hiking, when you're on a ship or a yacht, you still have a tendency to get wet. Having this water proof binoculars will definitely provide you with quality images amidst several water exposures. Furthermore, many of these types of binoculars are even fog proof and nitrogen purged.

However, it is important that you do not get deceived by the water resistant models that pose themselves similar to the waterproofed ones. Water resistant models would mean that it is okay even if it gets splashed by some water. Thus, submerging it in the water is a whole lot different because it can surely break and damage this type, particularly during the rainy seasons.

These are the reasons why it is best to choose the right kind of marine binoculars. It is as critical as getting your money's worth.

Famous Brands of Marine Binoculars are as follows:

* Avian
* Bushnell
* Canon
* Fujinon
* Nikon
* Steiner

The price of these binoculars, depending on the model and features, would range from 189 Euros up to 939 Euros.
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