We need to consider certain points during purchasing a binocular. The potential buyer is faced with a countless of options and ultimately would be left in more confused state. If your not familiar with the technical aspect of the binoculars. I hope this article would provide some of it.The outer appearance of the binocular would catch your first glance. Are basic design, central focusing knob/wheel and diopter(A unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists)

The physical features of binoculars which strike you first, are basic design, central focusing knob/wheel and diopter.

Basically binoculars would come with two basic designs

1. porro prisms

2. roof prisms

The ones using porro prisms are the traditional design where the eye pieces are off-center to the barrels, whereas the ones using roof prisms the eye pieces are in line with the objective lenses and have a sleek design. Porro prism binoculars are less expensive and have greater three-dimensional viewing effect, whereas roof prism binoculars are more compact and lighter, but are usually more expensive.

Different Types of Popular Binoculars

Different types of binoculars have different types of lenses. Consider this when purchasing a binocular. Choose one that suits your lifestyle and budget.

Different types of Binoculars

Compact binoculars – These small and portable binoculars are ideal for theater-viewing like the opera. It is also satisfactory for hiking, hunting and other field trips.

Standard binoculars – These gadgets are best used in outdoor activities like bird-watching, hiking, and watching spectator sports.

Giant binoculars – These big and bulky binoculars are ideal for home use as a telescope (viewing the sky or moon) or for traveling while inside your vehicle. giant binoculars were originally developed for the military. These binoculars feature a super large objective lens size for maximum light collection, making them one of the best choices for astronomy and other low-light use.

Stabilized binoculars – These high-powered binoculars use stabilizing technology that renders a clear image even with shaky hands. Image stabilizing (IS) binoculars offer the advantage of a clearer, sharper image with less work and more flexibility

Zoom binoculars – The zoom binoculars specialize in enlarging objects quickly and efficiently, even at a great distance.

Waterproof binoculars – These tools are safe underwater, perfect for marine use or beach activities.

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Steiner 10×50 Merlin Binocular
Price: $749.95

If you need high performance for faster discovery, especially of birds on view, take a close look at the new light weight alloy bodied Steiner Merlin. They are precise, yet amazingly rugged and also fully waterproofed for even the rainiest days.

Some of its Prime features are:

1. Perfect Balance with comfort with exceptional brightness.
2.The Merlin 10×50’s features phase corrected roof prisms and fully multi-coated optics for clarity and
highest resolution.
3.The image brightness due to the large 50 mm lenses is perfect for deeper, older growth forests and for viewing during early morning and evening hours.

4.Weight: 28 ozs.
5.Eye relief: 18 mm
6.Field of view: 264 feet @ 1,000 yards .
7.Dimensions: (inches)  7.5Lx2.5Hx5.1W
8.Close focus: 8.0 feet.

The optics of the Binocular are made  with premium optical glass and are coated with our own natural color transmission multi-coating which boosts light transmission much higher than similar binoculars in this price range and yields extraordinary clarity, resolution and color fidelity.

It has a  unique “Fast-Focus” system which turns from close focus to infinite distance in two full turns of the focus wheel, for razor sharp fine tuning. The focusing is smooth and precise, and it’s waterproof.
Since birds are skittish by the presence of bright or light colors, Steiner tried the opposite approach with the exterior finish of the Merlin: the almost transparent neutral color on the Merlin is a unique earth tone brown; chosen by Steiner’s development staff and birders as a color least noticeable to birds.

Brand: Steiner

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Nikon 10×42 Team REALTREE Monarch ATB – Binoculars
Price: $312.59
NIKON 7525 Team Realtree Monarch 10 x 42mm All-Terrain Binoculars

Features large, fully multicoated, anti-reflective objective lenses with wide-angle viewing, combined with superior phase correction coated high-index prisms that provide superior performance with bright, crisp, clear images and glare-free viewing, even in inclement weather and low-light conditions. Built for rugged use, with a durable Sure-Grip armor-coated body and 100% waterproof, shockproof, fogproof performance. Ergonomic roof prism styling features smooth, easy center focusing and extra-long extended eye relief for eyeglass wearers. Black or Realtree® APG HD^TM finish

Nikon Monarch ATB Binoculars feature:

• Fully multicoated objective lenses
• Phase corrected high index roof prisms
• Waterproof, fogproof, shockproof
• Sure-grip armor-coated exterior
• Extra-long eye relief

Brand: Nikon

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Swarovski SLC Binoculars – Roof Prism
Price: $1799.99

Swarovski Binoculars shows top brilliance of image, focusing, optimal contrast with a large field of view and high light transmission. Precision mechanical optical systems with a high degree of reliability and exact, permanent alignment of the two halves of the binoculars to each other. Comfortable handling, compact construction, and ergonomic design make them more unique. Special product advantages from Swarovski include: A century of know-how in the grinding, cutting, and polishing of glass. Patented SWAROTOP® and SWARODUR® multilayer coatings on every air-to-glass surface for maximum light transmission. Phase-corrected coatings for bright, high-resolution contrast, and brilliant color images. Compact constructed roof prism systems. Dustproof and waterproof interior focusing system. Twist-out eyecups for eyeglass wearers.

Swarovski SLC Binoculars feature several unique design advantages, making them a great set of binoculars for hunters. The three-part objective lens helps increase light transmission even more, giving top image quality, even in extremely low light situations. The SLC also features individually adjustable eyecups that quickly retract for eyeglass wearers. Central dioptic adjustment and smooth central focusing system in an ergonomic, comfortable-to-hold design. Airtight, dustproof, fogproof, and fully waterproof/submersible. This line also has a shock-resistant polyurethane shell with soft, easy-to-grip protective armoring. Includes rainguard, objective lens covers, carrying case, and neck strap.

* Swarovsky SLC binoculars feature: 3-lens objective lens with high light-gathering power
* Unique SWAROBRIGHT prism coating
* Good depth of field
* Patented central focusing wheel with integrated dioptric correction
* New ergonomic design mainly in the bridge area
* Rubber armor exterior
* Better weight balance for improved handling
* Depressions on top side – in addition to the tried-and-tested thumb depressions

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Zeiss Victory FL Binoculars – Roof Prism
Price: $1899.99
Victory FL series are best even in twilight hours. They have introduced lotus flower effect. That is the water repelling characteristic of surfaces, to simply let water drops pearl off and to repel dirt. LotuTec acts as protective coating and cleaning and care is made especially easy. They hold some advantages like Dirt, grease and water repelling pearl-off effect, Simplified, streak-free and gentle cleaning, Reduced misting tendency, Contrast-rich and brilliant image. Without LotuTec most leaves, moisture and dirt particles collect on the surface and adhere. With LotuTec the drops simply pearl off. Dirt and finger prints can be easily removed from the smooth surface.

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Vortex Razor Binoculars – Roof Prism
Price: $769.99

Vortex pays attention to detail in everything they do to make sure they offer you the finest in rugged outdoor optics. “Say what we mean and mean what we say”. Vortex provide uncommon excellence and dedication to their customers in all aspect of their business

Vortex Razor Binoculars take advantage of the latest engineering and high-definition glass technology to deliver incredible natural color distinction, brightness from dusk to dawn, and razor-sharp detail – all highly necessary for successfully separating game from cover.
Not only is the Razor built to withstand avid use in tough terrain, the argon gas guarantees waterproof, shockproof, and fog proof performance. This advanced process protects your Razor binocular in the following ways:
•Argon gas does not absorb or react chemically with water.
•Argon gas eliminates internal fogging.
•Argon gas maintains its protective properties over a wider temperature range.
•Argon gas does not diffuse as quickly as other elements, extending the service life of the optics longer.

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Nikon Monarch 10×42 ATB Binoculars
Price: $371.99
Nikon has maintained an unwavering commitment to the study of light with the corporate philosophy, “Trustworthiness and Creativity”. They work with diligence and sincerity as a responsible individual. Their Aspiration mean not only to meet the needs of customers but also to provide customers with new value that exceeds their expectations. “Meeting needs. Exceeding expectations.” is their vision for the future.
Nikon 10×42 Roof Prism Binocular is one of the top choices of customers for nature-viewing. They have features like waterproof, fog-proof and shock-proof body design. Additional features like turn-and-lock eyecups and long eye relief. They have oversized focus knob for quick and easy focusing and mainly 25-year no-fault repair/replacement warranty. These features make this product more special and reliable for the customers to buy. So give it a shot!

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Canon 9332A002 12 x 36 IS II Binoculars with Optical Image Stabilizer
Price: $926.59

Canon is a leader in professional business, consumer imaging equipment and information systems. Canon’s extensive product line and digital solutions enable businesses and consumers worldwide to capture, store, and dole out information.
Canon’s 9332A002 12 x 36 IS Binoculars deliver outstanding optical performance and unparalleled, light and compact image stabilization capabilities at a very affordable price. The prism in the binocular is canons vari-angle prism. The optics in the binocular is 12x magnification which ensure a long-eye relief. It has a wide-field viewing optics which gives wide and extra bright field of view. The optics is multi coated with doublet field flattener. The edges of the optical lens are very sharp and contrast which promises excellent, sharp image.
Canon 9332A002 12 x 36 IS II Binoculars with Optical Image Stabilizer can be used continuously for 4 hours as it was designed with power saving capacity. The binocular can be operated with one hand when your other hand is busy with some other work. There is a compact roof prism designed with centre focus which will ensure handling it in one hand. The rubber coating in the binocular is water resistant and guarantees grip.

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Important tips before you buy:

Weight:

To hold the binoculars properly it’s better to buy a lighter binocular. Easier to hold better the view.

Exit Pupil:

This is the size of the image at the focusing point of the binocular. It is computed by dividing the objective size by the magnification. The exit pupil of an 8×40 binocular is 5mm (40/8). A larger exit pupil means a brighter image. Binoculars over 3mm are considered good for daytime birding and anything over 7mm is a waste.

Eye relief:

Eye relief is the distance from the rear eyepiece lens to where the image is formed. Eyeglass wearers should look for binoculars with at least 15mm of eye-relief and have eye-cups that can be folded down. This will allow them to enjoy bird-watching.

Close Focus:

Good birding binoculars should have a close focus of 10 feet or less otherwise you may find yourself walking backwards to try and see something. How close a binocular focuses depends on how it is made rather than on its power.

Body Design:

There are two basic types. i) Porro prism Binoculars and, ii) Roof prism binoculars. Roof prisms are lighter, rugged, easier to maintain and usually waterproof. Porro prism binoculars are cheaper, Optical quality is not markedly different though roof prisms being more expensive usually have better coating.

Binoculars are what makes bird-watching pleasurable – so invest in the best that you can afford, they are sure to give you years of memorable moments.

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Travel Binoculars

Binoculars are most often used by people who travel. Binoculars are mainly helpful in journey travel, such as traveling to national parks or safaris, where the explorer might want to view wildlife. Travel binoculars are usually lighter and more solid than usual binoculars. They effortlessly fit in a carry on bag, and some are tiny enough to fit in a pouch.

Machinery of Travel Binoculars

It’s always good to know the working of binocular before you choose.

Prism

With the help of prism you see the images right-side-up when looking through the binoculars. Travel binoculars usually have roof prisms, which are present inside the optical tube of the binoculars. It reduces the space and makes it great to travel.

Lens Coating

Glass surfaces are coated that touch the outside air. The coating helps transmit the light. Its better to look for binoculars which are fully coated. Multicoated binoculars reduces glare.

Magnification and Objective Lenses

Magnification is the power of the binoculars. Magnification is usually confirmed in two numbers, such as 8 x 25. The first number means how much the binoculars magnify an object. An 8x magnification means that the object looks eight times closer than natural eyesight. The second number is the objective lens diameter. The lesser the diameter, the more compact your binoculars are for travel. However, the larger the diameter, the more light you will have entering your binoculars. The objective lens is the lens that faces the object.

Exit Pupil

The exit pupil is the lens by your eye. If you hold the binoculars at arms length, you will see a small spot of light through the eyepieces. This is the exit pupil.

Field of View

You will have a limited field of view, which is the area you can see when looking through your binoculars. This area is measured in degrees. If you are going to be watching moving objects, look for a large field of view.

Source: http://www.travelequipments.com/travel-equipments-articles/discount-binoculars.htm

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