Telescope Reviews

Sky-Watcher BK804AZ3 Achromatic Refractor Telescope is a specialist in planet viewing and it delivers best results for the activities like astronomy, nature studies and even sports that are been observed from a distance. Telescopes are the available optical device to support such activities and they are capable of bringing the images closer. The following is the review of this model.

Type: The refractor technology has an edge over the other designs as they are enclosed closely keeping away the dust and moisture to enter the optical tube. The optics are fixed and do not have a central obstruction. This makes the device offer a high-contrast and better resolution output. They are best for planetary observation.

The lens: Having been fully multi-coated with the objective lens diameter of 80mm is sure to offer a clear rich view of the stars, clusters, nebulae, galaxies, planets and the lunar. It does not stop there with the few additional accessories like the correct filtering or by the required projection; the user can view the Sun and even the far off terrestrial views. Without the compromise on the quality the vision of the observed objects make it appear clear crisp and with little chromatic aberration.

The Built: The physical appearance is portable and it has a solid built with the robust structure. The weight of this BK804AZ3 telescope is just 1.5kg that can be easily carried along in all endeavours. Be it in the carry on bag or the backpack, it sits perfectly making it suitable for the travelers. This device suits for the beginners and the hobby astronomers. While the installation is simple in few steps, the few alignments of the finder scope and the mount I what has to be done.

Technical details: The focal length of 400 mm with the focal ratio of F/5 makes Sky-Watcher BK804AZ3 Astronomy Telescope perfect for the general celestial observation. It gives a highest practical power of magnification of 160x while the resolving power is 1.45.

Focus: This Telescope can be focused with the finder scope of 6×30. This is a low power attachment to the telescope that helps to locate the objects easily. The optical tube assemblies are been held firmly and the tube mounting rings helps to rotate and balance the device. The available mount is been made of aluminium and is alt-azimuth mount. This allows to be adjusted to locate and follow the viewing object. Also made to stand on the photographic tripod that is quick and simple to operate. It is been supplied with the multi functional mount plate.

Added features: This BK804AZ3 Sky Watcher Telescope comes with the slow motion control that performs both vertically and horizontally. The lens can be used for the astro-photography that takes interesting pictures of the celestial observation. The terrestrial photography can also be taken with this model.

Verdict: Sky-Watcher BK804AZ3 Celestial and Terrestrial Telescope is a real handy and can be used for the travel purpose. However, the features like the motor drive and the counter weights and Go-to function are absent. The accessory tray is been featured large wall to wall that is stands to be an advantage.

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Sky-Watcher BK804AZ3 Astro Photography Telescope - Specification Details

Celestron, the makers of magnifying devices manufacturers telescope in its product segment. Coming out with wide range of telescope under many series, Celestron AstroMaster 76EQ Telescope (31035) belongs to the ‘AstroMaster Series’ of the brand. Under this series are available three types of telescope with different technical of which 76EQ Reflector is the one that is been reviewed.

At the outset this series models are been specialised in its design so compact and portable. The materials used are high graded that ensures stability and durability.  For those who desire to view both terrestrial and astronomical observation with the capability of giving correct view of both the land and the sky. It can give a lifetime excitement of viewing the bright images of the Lunar and the Planets. May be the deep sky objects like the galaxies and the nebular does not transform with as bright as the planets like the higher models, yet it can give an overview of the same.

Right out of the box:

The excitement begins when the package is been opened to find the telescope and the accessories that are been required to be assembled with the help of the systematic manual provided. It does not require any special degree to do this setting up, as it is user friendly. The tripod can be unfolded instantly and the equatorial mount is been set up with the screws provided. This is been followed by the counterweight bar and the counterweights. It goes on and in few minutes you can enjoy the wholesome benefit of observing far off objects.

Type:

The telescope that is been defined with the reflector type of optical design. This is a Newtonian design that replaces heavy lenses with the mirrors that collect and focus the light. They are popular for its easy maintenance, light in weight, portable and economical. It can take you to the depth of night sky with its enhanced light gathering capability.

Anesthetics:

Celestron 31035 AstroMaster 76EQ Reflector Telescope is quite portable, where the optical tube length measures 914.4mm and it weighs just 8.16 kg. It can be easily accommodated in the back seat of the car and can travel along to bring more pleasure to the trip. The optical coating is made of aluminium and is been fully coated; it consists of a mount of type CG-2 Equatorial. The tripod that is been provided is a 1.25″ Steel Tube Legs. In the case of the equatorial mount the axis of rotation of the telescope is been aliened to the axis of rotation of the Earth which is known as the polar alignment. The mount also plays a vital role in adjusting to the polar axis that is been done by tightening or loosening the rear latitude adjustment screw followed by the front screw. This latitude adjustment ranges approximately from 20 – 60 degrees.

Technical details:

With the aperture which is the diameter of the objective lens measures 76mm, this performs to gather the light from the atmosphere and the higher is the aperture the brighter will be the viewing images. The focal length and the focal ratio are 700 mm and 9.21 respectively. The eyepiece provided are 20mm, which enhances the magnification by 35x and the 10mm eyepiece with the magnification of 70x. The field of view at the distance of 1000 yards is 75 feet or 22.86 metres.

Finderscope performance:

Celestron AstroMaster 76EQ Equatorial Mount Telescope embedded with the finderscope of type Built-on StarPointer, this is the quickest and the most convenient way to make the telescope point to the desired object. It has a laser pointer that directly shines on to the sky. This is just a pointing tool and does not perform any magnification ability. In case of the daytime observation the alignment of the pointer should be done at the nighttime, as the LED dot will not be visible in the day light.

Verdict:

Observing lunar at the low power is easy and by changing the eyepiece is required if you are curious to go deeper in observation. It goes fascinating to view the planets, the Jupiter, the Saturn with its rings and when the contrast is increased, it brings out better details of the object. So is the observation of the deep sky objects that are outside the boundary of the solar system, the use of light filters helps in viewing them better.

Celestron AstroMaster 76EQ Astronomy Telescope - Technical Specification Details

Overview: Celestron NexStar 4SE Computerised Telescope from the makers of the well-known brand comes in the forefront of the market as one of the best selling product of 2009. At the outset, it belongs to the Maksutov-Cassegrain type of optics and is made to be suitable for general observation and photographing. This is a portable model and it does prove to be ultra portable in its dimension and weight. The insight of the model and the review of the same can be obtained in the further read.

Design Overview: This Celestron 11049 Computerised Telescope belongs to the 4″ Maksutov-Cassegrain type of construction. Designed with the orange colour tube adds to it looks. The lens is multi-coated and does come with the finderscope. It has a quick release fork arm mount, the optical tube and the accessory tray. It is been operated through the battery power and the internal battery compartment eliminates the cord warp during its functioning. The length of the optical tube is 342.9mm and it weights 4.99kg, when it is included with the tripod and the mount it weighs an extra of 4.54kg.

Technical details: Technically Celestron NexStar 4SE Maksutov-Cassegrain Telescope offers a professional observation together with the photography features. The aperture is 102mm, which is the measurement of the lens. It works well to transform better lighting to the viewing objects and is a sure night sky observer. With the focal length and the focal ratio of 1325mm and 12.99 respectively, it makes the image look larger and offers a smaller field of view. The highest and the lowest useful magnification 241x and 15x respectively.

Other specialties:

Lens coating - This Telescope is been embedded with the lens that has an exclusive coating of StarBright XLT, this comes with many features that performs well in observation. It features with the multi-layer anti-reflexive coating that offers clear and brighter images. It also has high transformation of water white glass making it looks as crystal clear.
Finder scope - This device comes with the Star finder, which is been mounted on the telescope and helps to locate the objects. In this type, it comes with cross hairs to help in locating the objects.
Mount - The mount provided with this device is the single fork arm altazimuth type, this is a simplest form that offers up and down movement for the adjustment. It is be equipped with the slow motion controls that make the adjustment more precise.
Tripod – The tripod that acts as a platform to mount the device has two legs that can be adjusted by height and can be spread out to the maximum. The tripod of Celestron NexStar 4SE Celestrial Telescope is steel made with built-in wedge.
Computerised mount – About 40000 objects database with 200 user definable objects are readily available for the viewing. It comes with the sky align that makes the aliening on the 3 bright celestial objects fast and easy. It comes with the flash upgradeable hand control software and the motor control units that help in downloading the latest from the internet. It does include the camera control for its remote operations. The display is of type that is with double line, 16 characters LCD with 19 fiber optic backlit LED buttons. All these put together it serves best and proves its worth for the price.

Warranty: Celestron two-year limited warranty is available for this product.

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Celestron 11049 NexStar 4SE Telescope - Technical Specification Table

‘Telstar’ the maker of ‘700×76 Reflector Telescope’ gives the user the privilege of observing both terrestrial and celestial observation. They bring all the excitement for the beginner level users and the astronomers. The user is at ease to observer the dark sky and even the far off lands all with just the change of the eyepiece. The confidence of this model is the challenge it gives as one may wonder how such old stars come under vision so easily and it is not just stars but also the planets, nebulae and the lunar. Proudly put before the many who wish to glance at the review that follows.

Design and Appearance: Telstar 700×76 Celestial and Terrestrial Telescope comes with an all-metal optical tube that can be assembled on a user-friendly tripod. The colour and finish is elegant and brings out its professional appearance. Unlike the refractor type of construction that user lens for observation, this model belongs to the reflector type and is been made up with the mirror based observation. Generally, the tube length of this type is shorter than those of the refractor telescopes. This Telescope makes it a sure one that opens up the deep sky and views even the distant galaxies.

Focal length and the Aperture: As the name states the focal length of this model is 700mm and the aperture is 76mm. with this long focal length, viewing of deep sky is a child’s play. The aperture is the size of the objective lens in its diameter. This is a major specification as it denotes the light gathering ability of the device. Only when the size of the aperture is more the power of viewing can be increased as the images under vision can be viewed brighter to observe.

Magnification and the Focus: Of course, the magnification is another important criterion for choosing the apt telescope. Telstar 700×76 Reflector Telescope offers a wide range of magnification like 35x, 53x, 105x, 175x, 263x, 525x of which the optimum magnification is 175x. Since its utility suits both the land and sky observation the user can select the best suitable magnification as the situation demands. Further, the focus system is of type Rack & Pinion; this gives an easy and simple mode of targeting the desired objects.

Eyepiece: The magnification can be increased with the use of the eyepiece, the provided eyepiece is 4mm and 20mm. further it can be increased by 1.5x or 3x using them, of which the 1.5x is the erecting eyepiece and the 3x is the Barlow lens. The erecting eyepiece is been provided in order to make this device serve for the land observation. Without the use of this erecting eyepiece, the images tend to be viewed up side down and this eyepiece corrects it to offer the right and straight images.

Mount and Tripod: With the thought of enhancing the convenience is been provided with the Alt azimuth mount and a sturdy and adjustable tripod made of metal. They help in allowing the user to operate hands free and with less stress. On the other hand it supports long hours of undisturbed observation.

Package contents: Telstar 700×76 Altazimuth Mount Telescope comes with the following as inclusive on the purchase of the product and they are Eyepiece 4mm, 20mm, Alt azimuth mount, Finder scope, 3x Barlow lens, 1.5x erecting eyepiece, Metal tripod with accessory tray  and Moon map.

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Telstar 700×76 - Technical Specification Details

Orion introduces wide range of models in telescope that caters in different series. Orion CT8 Ultra Newtonian Telescope belongs to the ‘CT Range’ of products that are been designed with the Newtonian technology. Many special features are common to all the models of this series although they vary in power and technical aspects.

Outstanding Design: All the models of this series of CT Range have a Sandwich construction of Carbon fiber tube with gloss finish on the surface and the matt black finish in the internal tube surface. They are the ones with the ultimate stability and making its performance impressive with the virtually zero expansion for the focal plane maintenance.  Looking further is understood that it is been embedded with the fan cooling system at the rear side. This helped in maintaining the image quality even during the continuous viewing. The tube diameter and the tube length measures 250mm and 860mm respectively. The tube weighs about 7kg and it makes easy for transporting.

Technical power of the device: Orion CT8 Ultra Newtonian Telescope although stated to be the basic design in this series with the enrichment of advanced features, it serves best for the celestial observations. The power and the ability of this telescope is been discussed further.

• Aperture – The objective lens diameter measures 200mm, it makes the images look brighter that it is actually present. The viewing experience is good for the lunar and the planets but penetrating the deep sky will not be as impressive.
• Focal length and Focal ratio – With the focal length of 900mm and the focal ratio of 4.5 the images that are been viewed makes it sure to offer a detailed one. The transmitted images can be viewed in a clear and brighter way.
• Finder scope – Available with Orion CT8 Ultra Celestial Telescope the finder scope of 8×50 to locate the objects and follow the desired object.

The Telescope does consist of stainless steel fully adjustable four-vane spider and a focal mount that belongs to the type of 2” OC1 Crayford with 10:1 drive.

Lens: This Newtonian Telescope comes with the special HiLUX optical coating that is been found in the latest models, it has the advantage as it increases the brightness of the viewing objects by 25%. It also comes with the certification that gives a 100% assurance to the quality. Optical glass main mirror that is been embedded is Suprax, to offer a clear and detailed viewing. This ultra grade optics is the development of skills for over 20 years and has brought out the best of it to impress the world.

Verdict: Orion CT8 900mm Telescope belongs to the basic model of the CT Series, with the features like the dual speed focuser, carbon fibre construction, high reflective coating, and fan cooking system makes it an all-new experience for the user. The included cradles and finder scope comes as an advantage. An electronic focus control also comes as an option. This is a sure to impress model for the beginners and intermediate level users. Further, it is capable of offering unlimited hours of excitement exploring the dark sky.

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Orion CT8 Ultra Newtonian - Technical Specifications, Features

Tasco 100×50mm Specialty Telescope has been brought to the forefront of the magnifying industry as a piece of affordable telescope. Although it does not head even to the beginners, it has been attractively designed to suit children and match well for the purpose of gifting. Tasco, would deny if this Telescope is been just taken easy as the makers of it makes sure to offer all the must-have features and technology that belongs to the higher end models. The following is the review of this product.

Type: Tasco 100×50mm Altazimuth Mount Telescope belongs to the refractor type that works with the lens embedded into it. They are been known for providing brighter images with better resolution.

Design: This sleek model is eye-catching with its red colour body. It comes with the convenient mount and finder scope. Gives the space a new look with its presence. Doubtlessly this model goes impressive as anyone desires.

Magnification: With the 100x ability, it is been promoted to offer the view of the image which looks 100 times closer than the actual. The vision of the celestial bodies is possible although it cannot penetrate deep inside the sky. More so, the terrestrial observation will go interesting to view the horizon and far off object.

Aperture: The objective lens diameter of 50mm states to be little better than the binocular. It determines the brightness of the viewing objects. The light gathering capacity of this device is normal and hence the images in the dim light condition cannot be viewed clearly.

Eyepiece: Available in this model is the eyepiece of 35x, this enhances the magnification effect and since it features as the erecting eyepiece, it allows terrestrial viewing. Hence, serves a dual purpose for the children to excite.

Finder scope: This is an attachment provided along with the device that comes as tiny and low power. It helps in locating the celestial objects in an easy and simple manner.

Tripod and Mount: Making it work comfortable is the mount and tripod. The tripod belongs to the adjustable aluminium that keeps the device sturdy in its position to give the user the comfort of viewing. The mount available in this Telescope is the Altazimuth that is simple to operate and can be adjusted both up/down and side ways.

Included accessories: Tasco provides the following along with the purchase of Tasco 100×50mm Specialty Refractor Telescope and they are 2x Barlow, accessory tray, and glow-in-the-dark stickers.

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Tasco 301051N 100×50mm Refractor Telescope - Specification Details