This model is very sleek and light weighted.  It weighs only 70.8 grams so that it is very comfortable to carry during your travel and thus it doesn’t need a tripod. It is constructed with smaller prisms and objective lenses to reduce the weight.  It comes in a stylish grey colour.

Features – The Alpen Sport 8 x 21 Roof Prism Monocular is a small and compact one which can be handled very easily.  The lens coating and eye piece focus help in transforming the images with much clarity and brightness.  This monocular is available with a standard neck strap and nylon case.

Magnification – This model comes with a magnification of 8x, which helps in making the viewed object, appear 8 times bigger than its original size.

Aperture - The aperture of the objective lens measures 21 mm in diameter. An aperture is a hole or an opening through which light travels. It performs the light gathering function from the object and helps in producing a fine and bright image of the object.

Eye Relief – The eye relief is said to be 10mm which is suitable even for the spectacle wearers, to get the entire field of view clearly and comfortably.

Exit Pupil – The exit pupil is situated at the centre of the objective lens which measures 2.6 mm.  The size and shape of the exit pupil is very essential for the performance of the monocular. It determines the amount of light that is required for enhancing the quality and brightness of the image.

Focus – This monocular is designed with eyepiece focusing, so that the objects can be viewed at the desired levels.  The field of view at 1000 yards is 378m.  This is helpful for the people who like traveling a lot and also the mountaineers.

Alpen 116  8 x 21 Outdoor Monocular is designed with a roof type of prism that helps to fold the optical path and makes the instrument much shorter which results in the light weight of the monocular. This model does not have a water or fog protection.

Warranty - A limited lifetime warranty is provided by the manufacturer for this Monocular.

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Alpen 116 8×21 Monocular - Technical Specification Table

Model Overview:

The highlight of Barska 10×25 Trend Compact Monocular is the sleek structure and the modish look. It comes with the non-slip grip together with the compactness and light in weight too. They are suitable for various outdoor activities and of course made for the travel purpose. The prism belongs to the Roof type with the glass of Bak-7. Quite handy is the focus system and comfortable are the technical details of this device.

Objective Lens and Magnification:

Made with the ability of enhancing the vision up to 10 times is what makes it suitable for the general outdoor observation. The aperture measures 25mm in diameter that goes well with this magnification and so is the light gathering of the lens to transform brighter images.

The Lens and the Exit Pupil:

The lens is been fully coated to reduce the glare during the time of bright sunlight observation and mid day observation. It offers clearer and sharp images to come into vision. The exit pupil present in the center of the objective lens measures 2.5 mm, similar to the lens it also helps in the function of light gathering to make the object brighter for vision.

Focus and Focusing:

Designed with the eyepiece focusing system Barska 10×25 Outdoor Monocular can be operated easily to set the clarity of the viewing image. The field of view at the distance of 1000m is 96m. Coming to the close focus it can focus as close as 8m. This is interesting to view the moving objects.

Eye Relief:

In order to make it suitable for the spectacle wearers it is not a great model for it but quite justifiable with the eye relief of 10.5 mm. But for the general users it is a cake walk of comfort.

Ergonomic features:

• Rubber armouring – This Trend Monocular comes with the rubber armouring that gives a sure and non-slip grip. It can be confidently carried even in the extreme of weather conditions.
• Compact Structure – With the weight as less as 110 grams can be carried in the pockets and can go any distance with out the feel of weight.

Warranty and Accessories:

Given by the manufacturer is the warranty for the limited lifetime that could impress anybody. The various included accessories are the carrying case, wrist strap and the lens cloth.

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Barska 10×25 Trend Monocular - Technical Specification Table

Features:

Before knowing the type of construction and the basic technical details, understanding its features are quite interesting. Zeiss Mono 10×25 T Compact  Monocular made of the rubber eyecups gives a convenient observation to the viewers with or without the eye glasses. This device is thus welcomed by many. It does come with the eyepiece focusing that makes handling easy and gives a more compact appearance to the monocular. The lens of the model are fully T-Multicoated, this not only transforms brilliant images but also increases the clarity and brightness. The most adorable feature is the water resistant. This makes the device safe from water and promote extended usage even under the rain.

The Technical Basics:

This model comes with the magnification ability of 10x. This is good for observing for the travelers and the mountaineers. The objective lens diameter measures 25mm in diameter while the exit pupil measures 2.5mm these makes it possible for the images to come brighter during the observation with its light gathering ability. To be noted is the geometric brightness of 6.3 and the twilight factor of 15.8, here although the geometric brightness is the same as its previous models, the twilight factor is better and higher than the previous model 8×25 T.

Physical characteristics:

Zeiss Mono 10×25 T Water Proof Monocular measures 109mm in length that can be extended up to 118mm during the focus. It attires in grey colour. It comes with the water proof construction and the housing with the sure grip make. The lens of this device features with the T multicoating that enhances the clarity of the viewing images. This Monocular although weighs a little more than the previous models with 77 grams, yet it is lighter to carry along and is compact in structure.

Focusing:

The field of view at the distance of 1000m is 88m and the close focus distance 4.5m. With the help of the eyepiece focusing the images can be observed with the desired levels. When used by the mountaineers and the travelers they benefit with this kind of focus system.

Package contents:

The Leather pouch and the carrying case are the accessories that are included in the package of this product.

Zeiss Mono 10×25 T  Pocket Monocular - Technical Specification Table

Physical Characteristics:

An outstanding feature here is its physical appearance and the structure. This Monocular comes with black colour body with the dimension of 63 mm in height and 31 mm in width. Its compactness also states in its dimension that can easily be slide into the pockets. Going stylish with the power of magnification is sure to power up the user. With the weight of mere 58 grams just resembles the weight of another pen in the pocket. This is one reason for its success and so it goes well in technical as well.

Magnification and Objective Diameter:

Viking 4×12 Compact Size Monocular comes with the magnification of 4x that makes the objects look 4 times better than its actual size. In this level of magnification the objects in a distant level say up to a reasonable distance can come into vision. With respect to the aperture it measure 12mm. This functions in the task of light gathering ability. This is just the basic spec and one cannot much with it but when compared to its handiness, it is better than the basic binoculars that are bulkier than this.

Exit pupil and Eye relief:

More similar to the aperture is the exit pupil that is present in the center of the objective lens. This also helps in the light gathering to make the image look brighter. In case of the eye relief it states to be 10.2 mm this is one of the mid range spec, this is average and proves good for the comfort of the eye glass wearers.

Focus:

With the central focus system Viking 4×12 Compact Monocular with Fold down eyecups offers a close focus of 25 cm, this is quite closer for observing the insects, birds, plants, butterflies and also reading the small prints. Also performs for viewing the distant objects as it can handle a reasonable distance of observation. The field of view at 1000m is 218 m.

Features:

• Quite obvious is the basic feature that is made of compact and light weight construction the prime highlight of this model.
• In case of the optical lens it comes as coated lens and it helps in reducing the glare and flare while observing.
• Present in this device is the fold down eyecups that are suitable for the spectacle wearers and it is the prime comfort for the same.

Inclusive and Warranty:

Viking supplies this Monocular with the wrist strap and also offers a 1 year warranty for this product.

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Viking 4×12 Light Weight Monocular - Technical Specification Table

The Basics:

This Zeiss Mono 3×12 Mini-Scope measures a length of 48mm and 58mm when the adjustment is changed. It is one in black and pocket-sized structure to go handy always. When it comes to weight it is as less as the weight of the pen with just 54 grams and if such a small thing can do so much in magnification why not carry it along as just an another pen in the pocket.

Magnification and the Aperture:

With the 3x magnification, Zeiss Mono 3×12 Compact Monocular is known to be a mini pocket sized monocular. Present in it is the objective lens that measures 12mm in diameter. This is quite low and has to be used only in the bright light conditions. It is best suited for the outdoor and daylight observation.

Exit Pupil and the Geometric Brightness:

Present in the objective lens is the exit pupil that measures 4mm in diameter. This is the one that combines with the objective lens to promote the brightness of the viewing image. The geometric brightness is been stated to be 16. while the Twilight factor comes to be 6.0.

Field of View and the Focus:

The field of view at the distance of 1000m is 220m and the close focus offered by Zeiss Mono 3×12 Monocular is 20cm. During the times of observing, the tiny letters or the parts of flowers and the insects, which are close, can be observed. However, the distance that it can handles is minimum of 20cm, if you tend to go closer the clarity cannot be obtained and it does not function as desired.

Package Contents and Accessories:

The leather pouch and the carrying strap come along with this Monocular as the package contents. Available is an optional accessory of the adapter that lets this monocular to get fixed to the Zeiss binocular for the enchanced magnification.

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Zeiss Mono 3×12 Monocular - Technical Specification Table

Design and Structure: This Luger 101-2530 Monocular is known to be the pocket giant as it is petite yet can do a wholesome job of magnifying anything that is been viewed. It has a unique design with the solid brass body that comes with the polished finish to add its elegance. The luxury of the product is been increased with the brown leather sheathing in order to protect the optics. Nice to hold and great to view is this monocular of weight just 234 grams. The Length of 135-330 mm makes Luger NL 25×30 Pocket Size Monocular that can easily slide into the pocket or can be carried with the carrying pouch that comes inclusive.

Application: Ensuring that its ability not only stops with its compact structure suitable for travelers but also can be an impressive product for the naturist and the birders. The far off objects along with watching the moving objects like birds can be accompanied with this monocular in an interesting manner.

Magnification and the Objective lens: With the ability of magnification of 25 times its original size, the model brings to the viewer the complete details of the viewing object. In many case even the device that are larger than this in size cannot offer this magnification ability. This is sure a professional one of its range. With respect to the objective lens it measure 30mm in diameter. It shows the light gathering ability of the device and more so it is best suited for the day light observation and cannot function impressive in the dim light environment.

Other Technical Details: Noted that the exit pupil is been made of size 1.2 mm in diameter, this is the one found in the center of the objective lens and it also functions for the better light gathering. The higher the number the brighter will be the image produced. The relative brightness is been accounted to measure 1.44 while the twilight factor is 27.4. Luger NL 25×30 Brass Finish Monocular offers a close focus of 6 m that suits to watch the moving objects without the disturbance of loss of track. However, this model is not been protected to be waterproof and shock proof.

Luger NL 25×30 Monocular - Technical Specification Table

Model: Barr & Stroud Sprite 20×50 Monocular

This B&S Sprite 20×50 monocular has a powerful definition yet it is suitable for the space conscious people who get impressed of its ultra compact design. Outstanding in its features and performance this single-handed device can be used for general outdoor observation, bird watching and hunting purpose. Its functionality is been added as it is compatible with the tripod and owns one sturdy tripod as its accessory.

Structural Details: Known for its state of design being compact the dimension and the weight of Barr & Stroud Sprite 20×50 BAK-4  Monocular are 165 x 88 x 60 and 425 grams. True to this statement, that handling the device is simple and can be carried along at all times. The glass used is Bak-4 type and is been a fully multi coated optics. The viewfinder is straight and not angled; this may be a hinge for the comfortable observation. The body is been made of polycarbonate construction which is the reason behind its lightweight. The armouring is rubber made that protects the device from mishaps and abrasions. It also makes it extremely rugged and durable. As a special feature is its nitrogen purged that makes the device waterproof, fog proof and shockproof.

Magnification and the Objective lens: With respect to the magnification, its ability is 20 times its original size. It is justifiable for general outdoor observation and suits best for the naturalist. The objective lens measures 50mm that shows the light gathering ability of the device. Among the models that have less aperture this stands good. It is again suitable for the general outdoor viewing.

Other Technical Details: With the exit pupil of 2.5mm that is been found in the center of the objective lens supports the lens in its light gathering ability. The close focus should also be noted and studied as when the user views the moving objects this helps to determine the suitable for any particular applications. The provided close focus of Barr & Stroud Sprite 20×50 Waterproof/Fog Proof Monocular is 2.5m. It does offer an apparent view at the distance of 1000m as 50m. The provision of tripod bush makes it possible to be mounted on the tripod to obtain hands free observation.

Guarantee and Package Contents: B&S offers its customers the accessories of Carrying case and tabletop tripod as the package contents and the guarantee for 5-year period.

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Barr & Stroud Sprite 20×50 Monocular with Tripod - Technical Specifications

This Monocular from ‘Bushnell’ is a generation one monocular that comes under the night vision classification of product. Those who are interested in the general outdoor observation and engaged in hunting can make the best use of this product. Having been able to view in the night sky this pocket monocular is unique in performance. The technical are so impressive that with just 25 percent of the Moon light it can be viewed.

Application: With the wide application capabilities, Bushnell Prowler 2×24mm 262024W Night Vision Monocular performs and suits well for the activities like the scouting game, camping, exploring caves, bight time fishing and boating, wild life observation, security and surveillance, search and rescue.

Magnification and the Objective lens: Although its magnification ability is low with 2x that is the two times size enhancement, it serves the purpose of provided magnified view of the objects. In case of the objective lens that measure 24mm, the light it gathers is better than the model that are lower than its size. The rubber armouring brings out the waterproofed attire of the monocular.

Anesthetics: The one with the green body colour is been designed with the cradle handle to help the user handle it comfortable. With the dimension of 142 x 61 x 81 mm and it weight of 301 grams it makes a compact structure. Quite weight less that can be carried around the neck for the all time use. It consists of a diopter that can be adjusted to +/-5.

Interesting features: This Monocular comes with the built-in infrared illuminator that works on the low light background and can be used in the dark nights or inside the caves. This device works with the battery power and has a battery type of  CR123A (1). It offers an operational time of up to 20 hours. Protected against both the water and the fog make the construction with the nitrogen purged and the rubber armouring. Bushnell Prowler 2 x 24mm 262024W Waterproof/Fog proof Monocular gives its adaptability to the tripod.

Field of view and Viewing range: The field of view at the distance of 100 yards and 100m is 105 feet and 35metres. With respect to the viewing range it can go with the minimum focus of 1.5 metres which is one of the real close view that can be obtained that helps to observe insects in plants and butterflies and the maximum viewing is limited to 120 metres.

Warranty: Bushnell offers a warranty period of 30 years for this product.

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Bushnell Prowler 2×24mm Monocular - Technical specification table

Model: Discovery NODS3 3x Night Vision Monocular

This NODS3 night vision monocular is been designed with the ergonomics with the dimension of 173 x 87 x 63 mm and weighing just 454 grams. This belongs to the generation 1 type that suits best for the travelers and the serious naturists. Making it suitable for extensive level of usage it been powered up with the battery power of type 2AA.

The performance:

When the user starts to view through the eyepiece the light available is been transmitted through the optical lens to the embedded intensifier tube. The transmitted energy produces the image with the internal technology and brings to the eyesight the magnified vision of the viewing object.

Magnification:

Offered just 3.1x makes the objects transmit by increasing the size by 3.1 times. Although this is not a big one in magnification, it suits for observing nature in the night sky.

Focal length and the Field of View:

Night Owl Discovery NODS3 3.1x Magnification Monocular offers a focal length of 50mm and the aperture of 1:1.2, this makes it a simple basic model yet delivers good observation. The field of view at the distance of the 1000m and 1000yards is 191m and 628ft respectively. The technical of the next model in this series NODS5 is better compared to this device.

Focus:

Functioning with the central focusing, it offers a focus range starting from 4 feet that is 1.5m to infinity. The material used in this is glass. The focus can be adjusted with the embedded diopter and the diopter can be adjusted from -4 to +4 range.

More to Note:

The resolution of Night Owl Discovery NODS3 3x Cradle Handle Monocular is 24 lp and it is the same with the advanced model of this series NODS5. The suitable operating temperature is -30 degree C to + 45 degree C. This Monocular is been featured with a handle cradle that offers easy one hand operation. It is been embedded with a powerful built-in infrared illuminator and a tripod mount.

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Night Owl Discovery 3.1x Night Monocular - Technical Specification Table

Barska located with its corporate in California is a specialist company in the sport optics segment. Their product ranges from binoculars, riflescope, telescope and the spotting scope. Chosen to be distributed worldwide in about 40 countries, its recognition of the JSA based quality control is outstanding.

Model: Atlantic 10×25 Monocular

Among the many series offered by the brand, this Barska AA10318 Moncular belongs to the ‘Atlantic Series’ that suits for general outdoor observation and is been fully secured to be water and fog proof. By way of offering great value to the quality, durability, it comes with the good technical inside and the robust construction outside. The following is the review of this model.

The suitability: This light weighted model with just 141 grams is an easy carry all along, making it comfortable to travel with and can be taken to heights during hiking. Barska 20×25mm Atlantic Monocular Scope can fit into any pockets and can be carried in the available pouch. It is sure to amaze the nature enthusiasts as much as the birders and the hunters. All the targeted objects can be visualized with the expected details. Its application extends to even the water sports as for its distinguished construction that is both water and fog proof.

Magnification and Objective lens: The prime deciding factor about the optical products are the magnification and the objective lens diameter that are been normally stated in the model name. Barska Atlantic 10×25 Water Proof and Fog Proof Monocular offers a magnification of 10x that makes the object 10 times bigger than it is. The objective lens diameter measures 25mm and it is able to transfer the good amount of light during the day light observation. This makes it great to extend the usage to the wild life observation and the marine activities.

Prism Type and Prism Glass: Made with the roof prism construction Barska Atlantic 10×25 Nature Observation Monocular appears to be compact and the prism glass is been made of BAK-4 type. The optical is been fully coated and offers a clear and glare free observation.

Focus: Embedded is the eyepiece focus system that is convenient to handle. The field of view at the distance of 1000 yards is 303 feet. With regard to the close focus, it can bring in at the distance of minimum 10m.

Exit pupil and Eye relief: The exit pupil that is been found in the objective lens measures 2.5mm, it also delivers the function of the light gathering to make the image look brighter and as original. The eye relief denotes the comfort level for the users who are spectacle wearer, with the 10.5 mm eye relief touches the basic comfort level for the glass wearing eyes.

Added specifies: Barska Atlantic 10×25 Roof Prism Monocular comes with the O-ring seal that makes it fully water proofed and the dry nitrogen purged makes it fog proofed device. The body has an ergonomic rubber design that ensures grip and protects it from the slips. The shock absorbing rubber armouring protects the internal parts in the best possible manner.

Warranty and Includes: Given is a limited lifetime warranty by the manufacturer and the various accessories included in the package are the carrying case and the neck strap.

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Barska Atlantic 10×25 Monocular - Technical Specification Table