Sky-Watcher SW707 AZ2 Refractor Telescope

Learning or interested in Astronomy? This Sky-Watcher 70/700 Refractor Telescope is a highly affordable telescope which allows beginners to take their first steps into the world of Astronomy. Several accessories are provided, this telescope is suitable for both astronomical and terrestrial observations. Unlike many other beginner telescopes on the market, this Sky-Watcher 60/700 comes with standard 1.25″ focuser allowing a broad range of eyepiece and accessories to be used for a better viewing experience.

Equipped with a user-friendly alt-azimuth AZ2 mount, this Sky-Watcher telescope can move in both horizontal and vertical axes. It is designed for viewing the Sun (Solar Filter REQUIRED), the moon and bright planets, and terrestrial observation during the day.

The Refractor Advantage
Images viewed through a refractor telescope have a classic quality that other telescope designs lack. Since a refractor does not use mirrors to view objects, you get a generally sharper image. Images are also displayed without the secondary mirror shadow, making it suitable for terrestrial viewing when used with a 45° erecting image diagonal or an erecting tube.

Superb Imaging Qualities
This achromatic refractor from Sky-Watcher features an aperture of 70mm and it is fully multi-coated to enhance light transmission. It delivers clear, high contrast images of the moon and the planets. Those new to astronomy will appreciate how simple and easy this telescope is to use.

In the Box:

• Sky-Watcher SW707 70mm Achromatic Refractor
• AZ2 Mount with Aluminium Tripod
• 2 Eyepieces Super 10mm (70x) & Super 25mm (28x) – 1.25″ Barrel
• 2x Barlow Lens (double the magnifications of the eyepieces)
• Finderscope 6×24
• 90° Star Diagonal – 1.25″ Barrel
• Instruction Manual

The SkyWatcher Dobsonian 6 Inch Telescope 153mm/1200mm has a "parabolic" primary mirror to eliminate spherical aberration and a four-arm, secondary- mirror bracket with fine supports (0.5mm thick), to reduce diffraction spikes and light loss. In addition, this model includes a 2" focuser with a 1.25" adapter, allowing the use of either eyepiece size. This model also includes a new feature - tension control handles allow an adjustment of the level of friction applied during use.

WHAT is a Dobsonian Telescope and WHY are they so damn cheap!?

A simple, elegant form of an alt-azimuth mount made to carry a Newtonian reflector was popularised by John Dobson in the late 1970's. The Dobsonian mounted telescope is most popular among amateur astronomers and telescope makers because of its simplicity. The metal tube is almost entirely empty, save for the large primary mirror at the bottom. A ground-based mount replaces the expensive tripod found under most other telescopes, but still allows full pivot and swivel motions. This build saves hundreds of dollars compared to equivalently-sized 6 inch SCT or refractor telescopes, and you end up being able to see the same level of detail for a fraction of the cost!

So, what's the catch?

Dobsonian telescopes are large and bulky. This means they are difficult to store and transport. If you need something small and easily portable, tripod mounted refractors and cassegrains are a much better option (although at a higher cost). Otherwise, you should seriously considering buying a Dobsonian, because the details you can see through one are truly out of this world.

Specifications:

• Finderscope 6X30 straight version
• Eyepiece 1.25″ 20mm (60x) – apparent field of view 70°
• Eyepiece 1.25″ 12.5mm (96x) – apparent field of view 70°
• Diameter of Primary Mirror: 153mm
• Telescope Focal Length: 1200mm (f/7.84)
• 2" R&P focuser with 1.25" adapter
• Parabolic Primary Mirror with SiO Overcoat
• Diffraction Limited Optics
• 0.5mm Ultra-Thin Secondary Mirror Supports
• Super-smooth Azimuth Movement with Teflon Pads
• Wooden Alt-Azimuth Mount with Accessory Tray
• 73% more Light Gathering than 114mm

Sky-Watcher Dobsonian 8 Inch

What is a Dobsonian Telescope and why the Tension Control Handle?

In the late 1970s, John Dobson popularized a simple, elegant design to carry a Newtonian reflector. The Dobsonian mounted telescope is popular among amateur astronomers and telescope makers because of its simplicity. It consists of a box which allows the telescope to pivot in altitude and swivel left and right in azimuth.

The Dobsonian mount relies on smooth friction between the mount and telescope to hold the optical tube in position. If there is too much friction, the telescope is difficult to move to center an object in the field of view. If there is too little friction, the telescope will not stay in the right position.

The Sky-Watcher Dobsonian 8 Inch includes Tension Control Handles (US Patent No. 6,940,642) that users can easily adjust to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboard of the mount. By providing such a tension adjuster the telescope will hold its position even when unbalanced. With the setting just right, the optical tube is stationary when you need, but can still be moved smoothly as necessary to follow the motion of your target. When the tension adjuster is completely tightened it locks the optical tube in position.

Like any Dobsonian, the SkyWatcher Dobsonian 8 Inch provides more light grasp for your money than any other telescope type. We are often asked, "What telescope is the best for an avid beginner?". Of course the answer depends on how you plan to use your telescope, but SkyWatcher Dobsonian 8 Inch would be right near the top of the list!

Sky-Watcher Evostar ED72 refractors provide the finest images obtainable in their design class. These doublet refractors deliver dramatic, coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. Sky-Watcher Evostar refractors are the logical choice for the discriminating amateur astronomer looking for an investment in advanced instrumentation for exceptional viewing and astrophotography, the focus position is designed for use with a camera.

This telescope is designed to be used as an astrograph, it short focal length make it ideal for imaging large star fields without the need for a large astronomical mount. However, we suggest the Skywatcher 0.85x Reducer / Corrector to flatten the wide field for better imaging results

It is also a perfect scope for Autoguiding with the addition of the ZWO ASI 120Mini Guider camera

FEATURES:

Skywatcher does it again. An old favorite gets a complete facelift with new features and upgraded components!

The venerable Dobsonian reflector design has recently undergone some important upgrades and improvements: Skywatcher is pleased to introduce the all-new Collapsible Dobsonian complete with Crayford focuser – the ultimate in large aperture portability and performance.

This elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the Skywatcher Collapsible Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening!

The bearing system has been redesigned as well. The new Skywatcher Collapsible Dobsonians feature buttery smooth azimuth bearings. Even the twelve-inch model can be rotated with just the push of a finger. Like our traditional Dobsonians, the new Collapsible Dobsonians feature Skywatcher’s patented tension adjustment control on the altitude bearings. This eliminates the need and added cost of clumsy counterweight systems to balance the telescope.

To top it off, all of the new Collapsible Dobsonians are shipping with ultra smooth Crayford focusers.

Skywatcher 8 Inch Collapsible Dobsonian Key Specifications

The Sky-Watcher family of EvoStar ED telescopes started with the 80ED, a value for money favourite of astronomers all over the world.

The new Sky-Watcher Evolux 82ED refractor is perfect for those looking for a compact and ultra-transportable instrument ideal for Wide Field, Deepsky astrophotography.

An optional custom designed 0.90X reducer/ flattener is available as an option.

It flattens the field for pinpoint stars right out to the edges, whilst reducing the focal length to 480mm

The new EVOLUX 82ED continues this tradition with major enhancements including:

• Unparalleled levels of optic performance for an ED telescope
• Updated 2-lens element design
• New ED glass
• 82mm / f 6.4 (f5.8 with optional reducer)
• New optional re-designed dedicated reducer/field flattener for wider field of view and faster imaging
• Retractable integrated dewshield for improved handling
• Precision 61mm (2.4″) dual-speed focuser

Here's a great mount option:

Specifications:

• Focal length=530mm / f = 6.4
• Focal length = 480mm / f=5.8 with optional dedicated reducer/flattener for wider field of view
• Net Weight: 2.6kg
• Retractable dewshield for compact handling and storage
• High precision new 61mm (2.4″) dual-speed focuser
• Aluminium hard case
• V style Dovetail

The Sky-Watcher family of EvoStar ED telescopes started with the 80ED, a value for money favourite of astronomers all over the world.

The new Sky-Watcher Evolux 62ED refractor is perfect for those looking for a compact and ultra-transportable instrument ideal for Wide Field, Deepsky astrophotography.

An optional custom designed 0.90X reducer/ flattener is available as an option.

It flattens the field for pinpoint stars right out to the edges, whilst reducing the focal length to 360mm

The new EVOLUX 62ED continues this tradition with major enhancements including:

• Unparalleled levels of optic performance for an ED telescope
• Updated 2-lens element design
• New ED glass
• 62mm / f 6.5 (f5.8 with optional reducer)
• New optional re-designed dedicated reducer/field flattener for wider field of view and faster imaging
• Retractable integrated dewshield for improved handling
• Precision 61mm (2.4″) dual-speed focuser

Here's a great mount option:

Specifications:

• Focal length=400mm / f = 6.5
• Focal length = 360mm / f=5.8 with optional dedicated reducer/flattener for wider field of view
• Net Weight: 2.5kg
• Retractable dewshield for compact handling and storage
• High precision new 61mm (2.4″) dual-speed focuser
• Aluminium hard case
• V style Dovetail

Sky-Watcher does it again. An old favorite gets a complete facelift with new features and upgraded components!

The venerable Dobsonian reflector design has recently undergone some important upgrades and improvements: Skywatcher is pleased to introduce the all-new Collapsible Dobsonian complete with Crayford focuser – the ultimate in large aperture portability and performance.

This elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the Skywatcher Collapsible Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening!

The bearing system has been redesigned as well. The new Skywatcher Collapsible Dobsonians feature buttery smooth azimuth bearings. Even the twelve-inch model can be rotated with just the push of a finger. Like our traditional Dobsonians, the new Collapsible Dobsonians feature Skywatcher’s patented tension adjustment control on the altitude bearings. This eliminates the need and added cost of clumsy counterweight systems to balance the telescope.

To top it off, all of the new Collapsible Dobsonians are shipping with ultra smooth Crayford focusers.

Skywatcher 10 Inch Collapsible Dobsonian Key Specifications

Sky-Watcher 150mm (6″) Dobsonian Telescope

The 150/750mm dobsonian is a compact and easy-to-use table top telescope, ideal for all kind of observations. The patent collapsible system makes it is particularly easy to store and transport. Just extend the tube, point the telescope using the red dot finder scope, insert the eyepiece and enjoy the night sky!

The easy handling of the Dobsonian mount offers a great way of getting started in amateur astronomy. It is intuitive and simple to use; the built-in handle allows movement of the telescope to the left and right while the adjustable clutch allows adjustment of the altitude axis. The telescope and mount come fully assembled, ready to use straight out of the box

The Sky-Watcher 6″ Dobsonian Telescope commemorates the International Year of Astronomy – the tube is decorated with the names of great astronomers of the past.

Accessories in the Box:

• Red Dot Finderscope
• Eyepiece 1.25″ Super 25mm (26x)
• Eyepiece 1.25″ Super 10mm (65x)

The exciting Skywatcher Collapsible Dobsonian 10 GOTO is precision engineered instrument that will allow you to easily find and enjoy viewing night sky treasures, such as Planets, Nebulae, Star Clusters, Galaxies and much more. With its patented collapsible tube design, these Dobsonians are truly the ultimate in portability and performance.

The elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the SkyWatcher Collapsible Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening! The patented Tension Control Handle allows users to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboards.

The SynScan™ AZ hand control allows you point your telescope at a specific object, or even tour the night sky at the touch of a button!! The user-friendly menu system allows automatic slewing to over 42,900+ objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The patented dual encoder design allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment!

The Sky-Watcher Dobsonian SynScan series combines the convenience and affordability of the traditional Dobsonian with the convenience of a computerized Go-To telescope.

Specifications

• Power Supply: 10 to 15 V DC 1Amp, 2.1mm Plug (Center positive)
• Motor type: DC Servo Motors,
• Resolution: Motor encoder: 1,620,000 counts per revolution, Main axis encoder: 11,748 counts per revolution
• Slew speeds: 1.0X, 2.0X, 8X, 16X, 32X, 200X, 400X, 600X, 800X, 1000X
• Tracking Rates: Sidereal, Lunar, Solar
• Tracking Mode: Dual Axes Tracking
• Eyepieces: 1.25” Wide angle 12.5mm and 20mm
• Alignment Method: Brightest-Star Alignment, Two-Star Alignment
• Database: 25 user defined objects. Complete M, NGC and IC catalog, partial SAO catalogues, total 42,900 objects
• Go-To Pointing Accuracy: Up to 5 arc min

SynScan AZ hand control SPECIFICATIONS:

• Power Supply: 10 to 15 V DC 1Amp, 2.1mm Plug (Center positive)
• Motor type: DC Servo Motors,
• Resolution: Motor encoder: 1,620,000 counts per revolution, Main axis encoder: 11,748 counts per revolution
• Slew speeds: 1.0X, 2.0X, 8X, 16X, 32X, 200X, 400X, 600X, 800X, 1000X
• Tracking Rates: Sidereal, Lunar, Solar
• Tracking Mode: Dual Axes Tracking
• Eyepieces: 1.25” Wide angle 12.5mm and 20mm
• Alignment Method: Brightest-Star Alignment, Two-Star Alignment
• Database: 25 user defined objects. Complete M, NGC and IC catalogue, partial SAO catalogues, total 42,900 objects
• Go-To Pointing Accuracy: Up to 5 arc min

The SynScanTM AZ hand control allows you point your telescope at a specific object, or even tour the night sky at the touch of a button!! The user-friendly menu system allows automatic slewing to over 42,900+ objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The patented dual encoder design allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment!

The Sky-Watcher Dobsonian SynScan series combines the convenience and affordability of the traditional Dobsonian with the convenience of a computerized Go-To telescope.

Normally available for pickup or shipping approx. 2-3 business days from your order

Sky-Watcher 8 Inch GOTO Collapsible Dobsonian

The elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the Sky-Watcher Collapsible Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening! The patented Tension Control Handle allows users to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboards.

The SynScanTM AZ hand control allows you to point your telescope at a specific object, or even tour the night sky at the touch of a button!! The user-friendly menu system allows automatic slewing to over 42,900+ objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The patented Freedom Find (dual-encoder) technology allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment!

The Sky-Watcher Dobsonian SynScan series combines the convenience and affordability of the traditional Dobsonian with the convenience of a computerized Go-To telescope.

Freedom Find™ - tracking made easy!

With the patented Freedom Find (dual-encoder) technology which allows the telescope to be moved manually or electronically in either axis without losing its alignment or positional information. After moving to a new object the telescope will automatically begin to track the new object accurately. No re-setup is required in one observing session.

Sky-Watcher 8 Inch GOTO Collapsible Dobsonian

SPECIFICATIONS

Instruction Manual

Sky-Watcher 70/900 AZ-Go2 Refractor Telescope

The Sky-Watcher 70/900 AZ-Go2 is a 70mm Achromatic Refractor Telescope that come with a focal length of 900mm. It's an ideal size for beginners offering views of:

• The Moon
• Rings of Saturn, moons of Jupiter (if in the sky when you're observing)
• Deep-sky objects including nebulae, star clusters and more

Images viewed through a refractor telescope have a classic quality that other telescope designs lack. Since a refractor does not use mirrors to view objects, you get a generally sharper image. Images are also displayed without the secondary mirror shadow, making it suitable for terrestrial viewing when used with a 45° erecting image diagonal provided.

The AZ-Go2 Mount – Wi-Fi-controllable with iOS and Android devices and compatible with the SynScan hand controller, offers smooth tracking and fast alignment. Use Wi-Fi to control the telescope wirelessly with your mobile device, either a smartphone or tablet..

Download the SynScan App from Google play or the App Store.

AZ-Go2 Mount Features:

• Wi-Fi GOTO
• DC12V Voltage
• 1.3kg Mount Weight
• DC Motor

In the Box:

• 70mm Refractor
• AZ-Go2 Mount
• Smartphone Adapter
• 10 and 25mm Super Plossl Eyepieces – 1.25″ Barrel
• 90° Diagonal – 1.25″ Barrel
• Red Dot Finderscope
• Power Requirement: 12v DC Power Supply (Tip Positive) or AA Batteries (not supplied)
• Stainless Steel Tripod with Accessory Tray

Sky-Watcher 80/900 AZ-Go2 Refractor Telescope

The Sky-Watcher 80/900 AZ-Go2 is an 80mm Achromatic Refractor Telescope that come with a focal length of 900mm. It's an ideal size for beginners, offering views of:

• The Moon
• Rings of Saturn, moons of Jupiter (if in the sky when you're observing)
• Deep-sky objects including nebulae, star clusters and more

Images viewed through a refractor telescope have a classic quality that other telescope designs lack. Since a refractor does not use mirrors to view objects, you get a generally sharper image. Images are also displayed without the secondary mirror shadow, making it suitable for terrestrial viewing when used with a 45° erecting image diagonal provided. The 80mm collects around 130 times as much light as your eyes compared to the 100x times as much as the 70mm model. More light means sharper, clearer views.

The AZ-Go2 Mount – Wi-Fi-controllable with iOS and Android and compatible with SynScan hand controller, allowing it for smooth tracking and alignment. Use Wi-Fi to control the telescope wirelessly with your mobile device; smartphone or tablet.

Download the SynScan App from Google play or the App Store.

AZ-Go2 Mount Features:

• Wi-Fi GOTO
• 12V DC Voltage
• 1.3kg Mount Weight
• DC Motor

In the Box:

• 80mm Refractor
• AZ-Go2 Mount
• Smartphone Adapter
• 10 and 25mm Super Plossl Eyepieces – 1.25″ Barrel
• 90° Diagonal – 1.25″ Barrel
• Red Dot Finderscope
• Power Requirement: 12v DC Power Supply (Tip Positive) or AA Batteries (not supplied)
• Stainless Steel Tripod with Accessory Tray

Sky-Watcher 127mm AZ-Go2 Maksutov Cassegrain

The Sky-Watcher 127/1500 Maksutov Cassegrain is a fully automatic telescope ideal for beginners and those who want to get straight to observing. Aligning the mount takes mere minutes with the “Bright Object” alignment mode with the computerised SynScan system that allows automatic pointing and tracking of more than 42,000 object in the sky! This means less time spent finding a faint nebula or a distant planet and more time to enjoy observing. Astronomy has never been so easy!

The Maksutov-Cassegrain is a compact and powerful optical design that combines a front meniscus lens and two mirrors. The optical tube is closed by the front meniscus, keeping the mirrors protected from atmospheric agents such as humidity, dust and pollution. The tube is short but the focal length is long allowing high magnification with the standard eyepieces. With maximum practical magnification of 256x , this Sky-Watcher Telescope will reveal details in Saturn’s rings, Jupiter’s bands, the Martian polar ice caps, and the phases of Venus and the moon.

The AZ-Go2 Mount – Wi-Fi-controllable with iOS and Android devices and compatible with the SynScan hand controller, offers smooth tracking and fast alignment. Use Wi-Fi to control the telescope wirelessly with your mobile device, either a smartphone or tablet.

Download the SynScan App from Google play or the App Store.

AZ-Go2 Mount Features:

• Wi-Fi GOTO
• DC12V Voltage
• 1.3kg Mount Weight
• DC Motor

In the Box:

• 127mm Maksutov-Cassegrain
• AZ-Go2 Mount
• Smartphone Adapter
• 10 and 25mm Super Plossl Eyepieces – 1.25″ Barrel
• 90° Diagonal – 1.25″ Barrel
• Red Dot Finderscope
• Power Requirement: 12v DC Power Supply (Tip Positive) or AA Batteries (not supplied)
• Stainless Steel Tripod with Accessory Tray

Specifications:

Solar Maximum is now happening - it's the perfect time to explore the ever changing featured on our nearest star.

The Sky-Watcher Heliostar 76Hα is a specialized prominence telescope designed with advanced safety features to protect the observer’s eyes. It incorporates multiple technologies, including an infrared thermal reflection film to effectively block heat and a dedicated ultraviolet (UV) filter to eliminate harmful rays. These features work in tandem to minimize stray light, ensuring a safe and enhanced viewing experience.

The Sky-Watcher Heliostar 76Hα is a specialized solar telescope designed for enthusiasts eager to explore the Sun’s dynamic features, particularly solar prominences. With a 76mm aperture and a focal length of 630mm (f/8.3), it offers a balanced combination of portability and detailed solar observation.

Key Features:

• Hydrogen-Alpha Observation: The  Heliostar 76Hα utilizes a combination of front and rear filters to isolate the hydrogen-alpha wavelength at 656.28 nanometers. This narrowband filtering, with a bandwidth of less than 0.5 angstroms, enables observers to view solar prominences and surface details with exceptional clarity.
• Advanced Optical Design: Incorporating multiple technologies to protect the observer’s eye, the telescope features a thermal infrared reflection film, a special heat-blocking filter, and an ultraviolet light-blocking filter. These components work together to eliminate stray light and ensure safe solar viewing.
• Precision Focusing: Equipped with a 2-inch Crayford focuser, the  Heliostar 76Hα allows for smooth and precise focusing adjustments, enhancing the overall observing experience.

The  Sky-Watcher Heliostar 76Hα is an excellent choice for both novice and experienced solar observers, offering a safe and detailed view of the Sun’s dynamic phenomena.

Etalon Filter Technology

At the heart of most Hydrogen Alpha solar telescopes lies the etalon filter, a highly precise optical device that isolates the Hα wavelength from the rest of the Sun’s emitted light. An etalon is a type of interferometer, consisting of two parallel mirrors separated by a precise distance. The etalon works by reflecting light multiple times between the mirrors, selectively allowing only wavelengths that satisfy specific resonance conditions to pass through.

In the case of Hα solar telescopes, the etalon is designed to transmit light at the Hα wavelength while blocking all other wavelengths. The key to the etalon’s performance lies in its ability to tune the wavelength it transmits. This is achieved by adjusting the distance between the mirrors or by slightly tilting the etalon, which changes the interference conditions. This tunability is crucial because the Sun's emission at Hα can shift slightly due to Doppler effects as material moves across the Sun’s surface and atmosphere.

There are two primary types of etalon filters used in solar telescopes: single etalon and double etalon systems.

Single Etalon: A single etalon filter typically has a narrower bandwidth, providing high contrast for detailed solar observations but at the cost of limiting the field of view. This makes single etalon systems well-suited for viewing small, high-contrast features like prominences or filaments.

Double Etalon: A double etalon system uses two etalon filters in tandem to improve the wavelength selectivity, reduce the overall bandwidth, and enhance the contrast and image clarity across a wider field of view. Double etalon systems are preferred for more detailed solar studies because they can offer both a sharper image and better tunability, allowing for a more accurate depiction of solar dynamics.

Solis Etalon Technology: Sky-Watcher's Solis technology allows the Heliostar to achieve a 0.5A bandpass without the costly expense and complexity of a second etalon to achieve the same performance. This allows the observer to obtain detailed images of the solar disk right out of the box without any further expense. 

Trifid Tuner: Inside the Heliostar is Sky-Watcher's Trifid tuning system. This tuner applies physical pressure to the etalon plates allowing the observer to reach the desired Hydrogen-band. The Trifid tuner uses three support veins to provide a secure tuning for the etalon. 

What does Hα mean?

The Sun is mainly composed of hydrogen which it's been busily converting to helium for billions of years and will do for some billions of years to come. Hydrogen gas is energised by the Sun's radiation and emits light on certain wavelength. Hα refers to where one of these wavelengths. 

Viewing the Sun through the Heliostar 76Hα lets you discover the Solar chromosphere which is the outer layer of the Sun's atmosphere in great details.

Rather than looking at the Sun in the intense white light we see with our eyes or via a regular solar filter which reduces the overall intensity of the Sun's light so it can be safely viewed with a telescope, a dedicated Solar telescope reveals such details as prominences on the edge of the Sun's disks,  filaments, sunspots and more. 

As the Sun is such a dynamic environment, what you'll see through this telescope will change from day to day.

Specifications

The Sky-Watcher 102/1300 Maksutov Cassegrain is a fully automatic telescope ideal for beginners and those who want to get straight to observing. Aligning the mount takes mere minutes with the “Bright Object” alignment mode, and the computerised SynScan system is the ultimate upgrade that allows automatic pointing and tracking of more than 42,000 object in the sky! This means less time spent finding a faint nebula or a distant planet and more time to enjoy observing. Astronomy has never been so easy!

The Maksutov-Cassegrain is a compact and powerful optical design that combines a front meniscus lens and two mirrors. The optical tube is closed by the front meniscus, keeping the mirrors protected from atmospheric agents such as humidity, dust and pollution. The tube is short, but the focal length is long allowing high magnification with the standard eyepieces. With maximum practical magnification of 256x , this Sky-Watcher Telescope will reveal details in Saturn’s rings, Jupiter’s bands, the Martian polar ice caps, and the phases of Venus and the Moon.

The AZ-Go2 Mount – Wi-Fi-controllable with iOS and Android devices and compatible with the SynScan hand controller, offers smooth tracking and fast alignment. Use Wi-Fi to control the telescope wirelessly with your mobile device, either a smartphone or tablet.

Download the SynScan App from Google play or the App Store.

AZ-Go2 Mount Features:

• Wi-Fi GOTO
• DC12V Voltage
• 1.3kg Mount Weight
• DC Motor

In the Box:

• 102mm Maksutov-Cassegrain
• AZ-Go2 Mount
• Smartphone Adapter
• 10 and 25mm Super Plossl Eyepieces – 1.25″ Barrel
• 90° Diagonal – 1.25″ Barrel
• Red Dot Finderscope
• Power Requirement: 12v DC Power Supply (Tip Positive) or AA Batteries (not supplied)
• Stainless Steel Tripod with Accessory Tray

Specifications:

The Sky-Watcher VIRTUOSO GTi 130mm (5") reflector table top Dobsonian is a GOTO telescope that’s ideal for beginners and experienced observers who want to get straight into their star gazing.

This small telescope is highly portable and has full GOTO and tracking capabilities.

Download the SynScan app from the Apple or Android store and connect to the Wifi network generated by the Sky-Watcher VIRTUOSO mount. You don’t need an Internet connection to use the telescope once you’ve installed the SynScan app, so it’s great for observing in dark sky sites where there a mobile phone signal mightn’t be available.

Aligning the mount takes mere minutes with the “Bright Object” alignment mode. The computerised SynScan system allows automatic pointing and tracking of more than 42,000 object in the sky including planets star cluster, nebulae and even galaxies. This means less time spent finding that faint nebula or a distant planet and more time to enjoy observing.

The 130mm (5") diameter Collapsible Dobsonian is a compact and easy-to-use table top telescope. The patented collapsible system makes it is particularly easy to store and transport. Just extend the tube, point the telescope using the red dot finder scope, insert the eyepiece and enjoy the night sky. This Sky-Watcher Telescope will reveal details in Saturn’s rings, Jupiter’s bands, the Martian polar ice caps, and the phases of Venus and the moon as well as views of many deep sky objects.

The VIRTUOSO GTi Dobsonian Mount requires 12v DC and can be run on batteries. BINTEL can supply an additional 12v power adaptor or rechargeable portable battery pack to suit your needs.

The Sky-Watcher 114/450 Newtonian is a fully automatic telescope ideal for beginners and those who want to get straight to observing. Aligning the mount takes mere minutes with the “Bright Object” alignment mode, and the computerised SynScan system is the ultimate upgrade that allows automatic pointing and tracking of more than 42,000 object in the sky! This means less time spent finding a faint nebula or a distant planet and more time to enjoy observing. Astronomy has never been so easy!

The Sky-Watcher 114/450 has superb Parabolic optics and provides excellent all-around performance for both the observation of the moon, planets and deep sky objects. The AZ-Go2 Mount – Wi-Fi-controllable with iOS and Android devices and compatible with the SynScan hand controller, offers smooth tracking and fast alignment. Use Wi-Fi to control the telescope wirelessly with your mobile device, either a smartphone or tablet.

Download the SynScan App from Google play or the App Store.

AZ-Go2 Mount Features:

• Wi-Fi GOTO
• DC12V Voltage
• 1.3kg Mount Weight
• DC Motor

In the Box:

• 114/450mm Newtonian
• AZ-Go2 Mount
• Smartphone Adapter
• Super Possl 25mm and 10mm Eyepieces – 1.25″ Barrel
• Red Dot Finderscope
• Power Requirement: 12v DC Power Supply (Tip Positive) or AA Batteries (not supplied)
• Stainless Steel Tripod with Accessory Tray

Specifications:

Step up to to the Sky-Watcher 10" Dobsonian for extra light gathering and sharper observing!

• Most Practical f/5 Telescope
• Outstanding Light Gathering Ability
• Super-smooth Azimuth Movement
• Tension Control System
• 2″ Focuser with a 1.25″ Adaptor
• 5 Years Sky-Watcher Limited Warranty

The Ultimate Light Gatherers

The Dobsonian telescopes are named after John Dobson, an amateur astronomer who designed a very simple but effective telescope, where the key factor is a large aperture for little money. His idea was to mount a Newton telescope on an easy-to-use alt-azimuth mount that does not need time-consuming alignments.

The Sky-Watcher 10″ Dobsonian is a large aperture Newtonian reflector telescope with f/5 focal ratio, make it ideal for wide field and deep-sky observation. Big aperture means better light gathering power and with this Sky-Watcher Telescope you are able to see prominent deep-sky object such as nebulae, star cluster and many more. It's also an excellent telescope for viewing planets such as Jupiter, Saturn and its rings and more. 

To top it off, the Sky-Watcher Classic 250P Dobsonian is equipped with a 2″ Crayford focuser and focuser locking screw to allow easy use of either eyepiece size.

Tension Control System
The Tension Control System allows you to adjust the friction setting; to increase or reduce the amount of resistance when moving the tube on the wooden mount, so you always have the appropriate resistance. The secret of the design is to correctly balance the optical tube with the specially designed handles (found on the base) and this adds enough friction and tension to allow the tube to move easily when nudged or to stay solidly in position.

In The Box:

• Finderscope 6X30 straight version
• Eyepiece 1.25″ 20mm (60x) – apparent field of view 70°
• Eyepiece 1.25″ 12.5mm (96x) – apparent field of view 70°
• Eyepiece adaptor from 2″ to 1.25″ with M42 thread
• 2″ Tube Extension
• User Manual

Specifications

Sky-Watcher 102/500 AZ-Go2 Refractor Telescope

The Sky-Watcher 102/500 AZ-Go2 is a 102mm Achromatic Refractor Telescope that come with short focal length of 500mm. This noticeably shorter tube compared to other telescopes of the same class allows it to deliver a wider field of view with standard eyepieces. The shorter length of the telescope makes it convenient for it to be packed up and stored away while not in use or when travelling.

The AZ-Go2 Mount – Wi-Fi-controllable with iOS and Android and compatible with SynScan hand controller, allowing it for smooth tracking and alignment. Use Wi-Fi to control the telescope wirelessly with your mobile device; smartphone or tablet.

AZ-Go2 Mount Features:

• Wi-Fi GOTO
• DC12V Voltage
• 1.3kg Mount Weight
• DC Motor

In the Box:

• 102mm Refractor
• AZ-Go2 Mount
• Smartphone Adapter
• 10 and 25mm Super Plossl Eyepieces – 1.25″ Barrel
• 90° Diagonal – 1.25″ Barrel
• Red Dot Finderscope
• Power Requirement: 12v DC Power Supply (Tip Positive) or AA Batteries (not supplied)
• Stainless Steel Tripod with Accessory Tray

Skywatcher Collapsible Dobsonian 16 GOTO

The Skywatcher Collapsible Dobsonian 16 GOTO is precision engineered and allows you to easily find and enjoy deep sky treasures. Choose from the Planets, Nebulae, Star Clusters, Galaxies and much more - it's 16" primary mirror has enough light grasp to see just about anything you desire. The patented collapsible tube design makes these Dobsonians the ultimate in portability and performance. The top section collapses for transport and storage making it far more convenient compared to traditional solod tube Dobsonians.

The elegant truss tube design combines ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the SkyWatcher Collapsible Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening!

The SynScan™ AZ hand control points the telescope at your chosen object, or even tours the night sky at the touch of a button!! The menu is easy to navigate and allows automatic slewing to over 42,900+ objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The patented dual encoder design allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment!

The Sky-Watcher Dobsonian SynScan series combines the convenience and affordability of the traditional Dobsonian with the convenience of a computerized Go-To telescope. Add the simplicity of the collapsible truss poles and you will not find comparable performance and convenience without paying a lot more!

Specifications

• Power Supply: 10 to 15 V DC 1Amp, 2.1mm Plug (Center positive)
• Motor type: DC Servo Motors,
• Resolution: Motor encoder: 1,620,000 counts per revolution, Main axis encoder: 11,748 counts per revolution
• Slew speeds: 1.0X, 2.0X, 8X, 16X, 32X, 200X, 400X, 600X, 800X, 1000X
• Tracking Rates: Sidereal, Lunar, Solar
• Tracking Mode: Dual Axis Tracking
• Alignment Method: Brightest-Star Alignment, Two-Star Alignment
• Database: 42,900 objects - complete Messier, NGC and IC catalog, partial SAO catalogues plus 25 user defined objects.
• Go-To Pointing Accuracy: Up to 5 arc min
• Eyepieces: 1.25” Wide angle 12.5mm and 20mm
• 9x50 straight finderscope

The Sky-Watcher VIRTUOSO GTi 127/1500 Maksutov Cassegrain table top Dobsonian is a GOTO telescope that's ideal for beginners and experienced observers who want to get straight into their star gazing.

This small telescope is highly portable and has full GOTO and tracking capabilities.

Download the SynScan app from the Apple or Android store and connect to the Wifi network generated by the Sky-Watcher VIRTUOSO mount. You don't need an Internet connection to use the telescope once you've installed the SynScan app, so it's great for observing in dark sky sites where there a mobile phone signal mightn't be available.

Aligning the mount takes mere minutes with the “Bright Object” alignment mode. The computerised SynScan system allows automatic pointing and tracking of more than 42,000 object in the sky including planets star cluster, nebulae and even galaxies. This means less time spent finding that faint nebula or a distant planet and more time to enjoy observing.

The Maksutov-Cassegrain is a compact and powerful optical design that combines a front meniscus lens and two mirrors. The optical tube is closed by the front meniscus, keeping the mirrors protected from atmospheric agents such as humidity, dust and pollution. The tube is short but the focal length is long allowing high magnification with the standard eyepieces. With maximum practical magnification of 256x , this Sky-Watcher Telescope will reveal details in Saturn’s rings, Jupiter’s bands, the Martian polar ice caps, and the phases of Venus and the moon.

The VIRTUOSO GTi Dobsonian Mount requires 12v DC and can be run on batteries. BINTEL can supply an additional 12v power adaptor or rechargeable portable battery pack to suit your needs.

Sky-Watcher does it again. An old favorite gets a complete facelift with new features and upgraded components!

The venerable Dobsonian reflector design has recently undergone some important upgrades and improvements: Skywatcher is pleased to introduce the all-new Collapsible Dobsonian complete with Crayford focuser – the ultimate in large aperture portability and performance.

This elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the Skywatcher Collapsible Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening!

The bearing system has been redesigned as well. The new Skywatcher Collapsible Dobsonians feature buttery smooth azimuth bearings. Even the twelve-inch model can be rotated with just the push of a finger. Like our traditional Dobsonians, the new Collapsible Dobsonians feature Skywatcher’s patented tension adjustment control on the altitude bearings. This eliminates the need and added cost of clumsy counterweight systems to balance the telescope.

To top it off, all of the new Collapsible Dobsonians are shipping with ultra smooth Crayford focusers.

Skywatcher 12 Inch Collapsible Dobsonian Key Specifications

The Sky-Watcher VIRTUOSO GTi 150mm (6") reflector table top Dobsonian is a GOTO telescope that’s ideal for beginners and experienced observers who want to get straight into their star gazing. The larger mirror in this model compared to the 130mm (5") version will mean brighter and more detailed images.

This small telescope is highly portable and has full GOTO and tracking capabilities.

Download the SynScan app from the Apple or Android store and connect to the Wifi network generated by the Sky-Watcher VIRTUOSO mount. You don’t need an Internet connection to use the telescope once you’ve installed the SynScan app, so it’s great for observing in dark sky sites where there a mobile phone signal mightn’t be available.

Aligning the mount takes mere minutes with the “Bright Object” alignment mode. The computerised SynScan system allows automatic pointing and tracking of more than 42,000 object in the sky including planets star cluster, nebulae and even galaxies. This means less time spent finding that faint nebula or a distant planet and more time to enjoy observing.

The 150mm (6") diameter Collapsible Dobsonian is a compact and easy-to-use table top telescope. The patented collapsible system makes it is particularly easy to store and transport. Just extend the tube, point the telescope using the red dot finder scope, insert the eyepiece and enjoy the night sky. This Sky-Watcher Telescope will reveal details in Saturn’s rings, Jupiter’s bands, the Martian polar ice caps, and the phases of Venus and the moon as well as views of many deep sky objects.

The VIRTUOSO GTi Dobsonian Mount requires 12v DC and can be run on batteries. BINTEL can supply an additional 12v power adaptor or rechargeable portable battery pack to suit your needs.

150mm/1800mm Skymax 150 Maksutov-Cassegrain OTA

New from Sky-Watcher - the smallest member of their Esprit range of APO triplet refractors

The Sky-Watcher 70mm Esprit 70EDX Triplet APO Refractor is a professional instrument for the most demanding and exacting astrophotographers. The air spaced apochromatic triplet lenses have exceptional colour correction over the entire visible spectrum there is no chromatic aberration even on bright objects! Knife edge baffles reduce internal reflections and increase contrast, helping to bring out faint structure in deep sky objects.

Main Features:

• Air Spaced 70mm Apochromatic Triplet
• 490mm Focal Length
• Fully multi coated lenses
• Optional 0.92x Reducer Available

In The Box:

• 70/490 Apochromatic Refractor
• Retractable Dew Shield
• D Style dovetail Bar and rings w/handle
• Aluminium Foam-Lined Case

Specifications:

The Sky-Watcher 130/650 Newtonian is a fully automatic telescope ideal for beginners and those who want to get straight to observing. Aligning the mount takes mere minutes with the “Bright Object” alignment mode with the computerised SynScan system that allows automatic pointing and tracking of more than 42,000 object in the sky! This means less time spent finding a faint nebula or a distant planet and more time to enjoy observing. Astronomy has never been so easy!

The Sky-Watcher 130/650 has superb Parabolic optics and provides excellent all-around performance for both the observation of the moon, planets and deep sky objects.

The AZ-Go2 Mount – Wi-Fi-controllable with iOS and Android devices and compatible with the SynScan hand controller, offers smooth tracking and fast alignment. Use Wi-Fi to control the telescope wirelessly with your mobile device, either a smartphone or tablet.

Download the SynScan App from Google play or the App Store.

AZ-Go2 Mount Features:

• Wi-Fi GOTO
• DC12V Voltage
• 1.3kg Mount Weight
• DC Motor

In the Box:

• 130/650mm Newtonian telescope
• AZ-Go2 Mount
• Smartphone Adapter
• 10 and 25mm Super Plossl Eyepieces – 1.25″ Barrel
• Red Dot Finderscope
• Power Requirement: 12v DC Power Supply (Tip Positive) or AA Batteries (not supplied)
• Stainless Steel Tripod with Accessory Tray

Specifications:

The exciting new Skywatcher Collapsible Dobsonian 14 GOTO is precision engineered instrument that will allow you to easily find and enjoy viewing night sky treasures, such as Planets, Nebulae, Star Clusters, Galaxies and much more. With its patented collapsible tube design, these Dobsonians are truly the ultimate in portability and performance.

The elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the SkyWatcher Collapsible Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening! The patented Tension Control Handle allows users to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboards.

The SynScan™ AZ hand control allows you point your telescope at a specific object, or even tour the night sky at the touch of a button!! The user-friendly menu system allows automatic slewing to over 42,900+ objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The patented dual encoder design allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment!

The Sky-Watcher Dobsonian SynScan series combines the convenience and affordability of the traditional Dobsonian with the convenience of a computerized Go-To telescope.

Specifications

• Power Supply: 10 to 15 V DC 1Amp, 2.1mm Plug (Center positive)
• Motor type: DC Servo Motors,
• Resolution: Motor encoder: 1,620,000 counts per revolution, Main axis encoder: 11,748 counts per revolution
• Slew speeds: 1.0X, 2.0X, 8X, 16X, 32X, 200X, 400X, 600X, 800X, 1000X
• Tracking Rates: Sidereal, Lunar, Solar
• Tracking Mode: Dual Axes Tracking
• Eyepieces: 1.25” Wide angle 12.5mm and 20mm
• Alignment Method: Brightest-Star Alignment, Two-Star Alignment
• Database: 25 user defined objects. Complete M, NGC and IC catalog, partial SAO catalogues, total 42,900 objects
• Go-To Pointing Accuracy: Up to 5 arc min

• 25th Anniversary Edition Tabletop Dobsonian GOTO with Wi-Fi
• Controlled with SynScan Pro App for iOS and Android
• GOTO via SynScan free app
• DC12V voltage
• Freedom Find dual encoder technology

Celebrate a quarter-century of astronomical excellence with the Sky-Watcher 25th Anniversary 127 Maksutov Virtuoso GTi Tabletop Dobsonian! This special edition telescope combines the compact power of a 127mm Maksutov-Cassegrain optical system with the smart, user-friendly features of the Virtuoso GTi mount. Perfect for both newcomers and seasoned stargazers, this model offers a luxurious, precise, and enjoyable way to explore the cosmos, marking Sky-Watcher’s commitment to innovation and quality over the years.

25th Anniversary Edition 127 VIRTUOSO GTi Maksutov-Cassegrain Tabletop Dobsonian

• 25th Anniversary Edition Tabletop Dobsonian GOTO with Wi-Fi
• Controlled with SynScan Pro App for iOS and Android
• GOTO via SynScan free app
• DC12V voltage
• Freedom Find dual encoder technology

The Sky-Watcher VIRTUOSO GTi 127/1500 Maksutov-Cassegrain Tabletop Dobsonian is a fully automatic telescope ideal for beginners and those who want to get straight to observing. Aligning the mount takes mere minutes with the “Bright Object” alignment mode, and the computerised SynScan system is the ultimate upgrade that allows automatic pointing and tracking of more than 42,000 object in the sky! This means less time spent finding a faint nebula or a distant planet and more time to enjoy observing. Astronomy has never been so easy!

The Maksutov-Cassegrain is a compact and powerful optical design that combines a front meniscus lens and two mirrors. The optical tube is closed by the front meniscus, keeping the mirrors protected from atmospheric agents such as humidity, dust and pollution. The tube is short but the focal length is long allowing high magnification with the standard eyepieces. With maximum practical magnification of 256x , this Sky-Watcher Telescope will reveal details in Saturn’s rings, Jupiter’s bands, the Martian polar ice caps, and the phases of Venus and the moon.

The VIRTUOSO GTi Dobsonian Mount – Wi-Fi-controllable with iOS and Android and compatible with syncs hand controller, allowing it for smooth tracking and alignment. Use Wi-Fi to control the telescope wirelessly with your mobile device; smartphone or tablet.