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 Series-5 focuser is a large capacity focuser for use with Alt/Az, or equatorially mounted systems.
• The focuser is capable of lifting 40 lbs (18 kg) with a travel range of  0.6-inches (15,200 microns).
• The Series-5 focuser can be stacked with the Series-5 rotator for a complete focusing rotator solution (combined 2.78″ of occupied backfocus).
• Occupies only 1.675” of backfocus.
• 464.4283 encoder counts per micron
• Controlled via PWI4 software for autofocusing and optional field de-rotation (if using an Alt/Az mounted system).
• Requires the Series-5 Controller.
• Compatible with the DeltaRho 350 and RC700 telescopes.

The Saxon 12" DeepSky （305/1500）Dobsonian Telescope is the perfect partner to begin your astronomy adventure with. This affordable telescope comes with a "paraboloidal" 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.

This telescope comes with an aperture of 305mm and a focal length of 1500mm in a 12" tube. This scope features quality parts and accessories - the special roller-bearing construction, Crayford focuser, eyepieces and finderscope are all designed to aid with your observing experience. Once assembled and with a little practice, you'll soon be able to find and view the rocky surfaces of the Moon, planets in the Solar System as well as deep sky objects such as star clusters, double stars, nebulae and galaxies.

The Saxon 12" DeepSky Dobsonian Telescope requires no additional tools during assembly and is incredibly easy to use, making it the perfect scope for beginner astronomers.

What is Dobsonian Telescope and Why the Tension Control Handle?

A simple, elegant form of an alt-azimuth mount made to carry a Newtonian reflector was popularized by John Dobson in the late 1970's. The Dobsonian mounted telescope is popular among amateur astronomers and telescope makers because of its simplicity. In its simplest form, the Dobsonian mount consists of a box which allows the optical tube assembly to pivot in altitude, while the box itself is swivelled on a base in azimuth.

The Dobsonian mount usually relies on the friction between the side bearings on the optical tube of the telescope and a frictional material on the saddle to hold the optical tube in place. If there is too much friction, the telescope is difficult to move to center an object in the filed of view. If there is too little friction, the telescope will not sty where it is positioned. This makes stabilizing the optical tube of the telescope difficult when using a Dobsonian mount, especially when accessories, such as a finderscope or an eyepiece, are added to the optical tube. As long as the amount of friction is at an appropriate level, and therefore stabilization of the optical tube is achieved, the telescope can remain in its desired position to view an object and maintain its position even when the mount is rotated.

The devices for stabilizing a telescope on the Dobsonian mount currently available include: a sliceable weight to counter balance the weight of the telescope, a friction lock that must be adjusted to inhibit movement of the telescope, and a spring attached between the telescope tube and mount to aid in stabilization.

These devices are inconvenient to use because they do not provide a simple and user-friendly way to adjust the friction. The objective of the saxon Tension Control Handle invention is to provide a tension adjuster that users can easily turn 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 does not need to be balanced in order to stay in position. The tension adjuster can be tightened such that the optical tube can stay in a position but can still be moved when prompted to adjust the position of the optical tube. Alternatively, the tension adjuster can be completely tightened to lock the optical tube in position.

The ZWO FF65 APO is a refractive astrograph with a powerful flatfield optical design which saves you from the expensive cost of a field flattener. It eliminates the trouble of calculating the back focus distance of the flattener and connecting various accessories to achieve that distance. You can just connect any possible accessories you need. As long as the target is focused, the whole optical system is perfect for imaging. This makes the whole setting up process much more convenient, and saves you time, allowing you to pay more attention to the image shooting itself.

The ZWO FF65 APO is also a nice choice for your visual observation. It fits diagonals as well as various eyepieces and can achieve a perfect focus, and can even be used to observe planets with a super-high magnification eyepiece.

The whole design of the telescope is compact and lightweight. The OTA weighs only 2kg, and the full package with tube rings and other accessories weighs 2.8kg. It has an aperture of 65mm. The focal ratio is f/6.4 and the focal length is 416mm. Instead of the quadruplet structure of the other ZWO FF APO Refractors, the FF65 APO is a quintuplet, with two ed Glass elements that offer excellent control of Chromatic and other aberrations.

The ZWO FF65 APO supports the full-frame imaging circle and has a fine spot diagram with tiny distortions of the peripheral stars. The 2.5" rigid focuser comes with a new-type 360°rotator with scales and a finder base. M68, M54, and M48 camera adapters are also attached, and the M48 adapter has a 2” female thread for installing filters.

ZWO FF65 APO Main Features

Quintuplet air-spaced APO design - No need to calculate back focus

Small and round stars - with a central RMS radius of 2.5um

Various adapters - M68/ M54/ M48

Dual speed (1:10) focuser - Support both fine and coarse adjustment

No need for a separate field flattener - Self-flattening design

Supports full-frame cameras - Produces a 44mm image circle

Optional Focal Reducer -

Specifications

SKU: ZWO-FF65-APO

You expect nothing less than crystal-clear images in your scope, but what are you going to do with the mount and tripod you already have? Mount it with the saxon 200/1000 DS Astrophotography Newtonian Telescope, that's what!

Combined with the aperture of 200mm and focal length of 1000mm, this scope is great for prime-focus photography. Higher quality images can be achieved with the optional coma corrector.

This model comes in an OTA form for you to use your own mount and telescope; and customise it with your own accessories to start a great viewing sesssion immediately.

The saxon 200DS Astrophotography Newtonian Telescope features the following:

• 200mm aperture
• 1000mm focal length (F/5.0)
• 2" Dual Speed 10:1 focuser
• 9x50 finderscope
• 2" LET 28mm eyepiece.
• 2" to 1.25" adapter.

New for 2026! Our most popular Smart Telescope for servious observers has been upgraded.

Highlights includes:

• New optics, with a three-group, flat-field apochromatic quadruplet.
• Light baffles to help combat stray light for urban astronomers
• 11-hour battery
• Increased internal storage
• Anti-fog system
• New, full height adjustable tripod

• 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.

AP-SM Equatorial mount

The Advanced Polaris (AP) mount is ideal for beginners learning to use an equatorial mount, as well as experienced observers looking for a simple, grab-and-go setup. It securely supports your telescope's optical tube, providing a stable and comfortable observing experience. Thanks to its friction control system, the mount can be quickly and smoothly moved to your target object. A wide range of optional accessories is available to customize the AP mount to suit your observing needs..

R.A. Motor module and STAR BOOK ONE Set

The AP-SM equatorial mount comes equipped with the RA motor module and the STAR BOOK ONE set, which includes the main motor for celestial tracking and the STAR BOOK ONE controller. This set forms the core of the AP mount system. You can customize and expand your setup by adding additional modules to the RA motor module and STAR BOOK ONE base.

Stylish design

The new stylish and compact design helps break the stereotype of astronomical telescopes being bulky and difficult to use. Weighing just 3.6 kg (excluding the counterweight), the mount is lightweight and easy to handle—even with full-scale astronomical telescopes. The power supply, using four AA batteries, is built into the body, and the use of internal electrical contacts eliminates the need for external wiring that was previously exposed.

Friction control system

Simply point the target objects by moving the optical tube by hands. The friction control system allows you to manually point the telescope at the object without using knobs and clamps.

Simple polar alignment

The optional polar meter can be attached on the equatorial mount for simple polar alignment. Even beginners can quickly align polar axis. For precision alignment, the polar axis scope is usually used, but the polar meter can outperforms especially where Polaris is not visible.

Polar alignment scope PF-L

The PF-L polar alignment scope features a three-star alignment system and a built-in dark field illuminator, allowing you to perform polar alignment while looking directly through the scope. The illumination automatically turns off to conserve power.

To complement the PF-L, we provide a free app called "PFL Assist" for smartphones and tablets. This app supports polar alignment by visually indicating the correct star positions within the displayed constellation.

Power supply system focusing on mobility and comfort

The motor module operates with 4 pieces of the AA batteries which are commercially available anywhere easily, not only corresponding to the alkaline battery but also economical rechargeable batteries (Ni-MH, Ni-Cd). For long term use, a commercially available USB external power supply such as USB mobile battery or USB AC adapter can be used connecting to the provided USB Micro-B terminal.

R130Sf Newton reflector

The 130mm aperture newton reflector which is excellent in light gathering power is ideal for observation of faint nebulae and star clusters in a wide and bright field of view.

APP-TL130 tripod

The compact APP-TL130 tripod is adjustable from 60 cm to 130 cm, combining the portability of a photographic tripod with the strength of an astronomical telescope tripod. The tripod’s feet can be switched between rubber pads and metal spikes, preventing damage to floors when used indoors.

Optical tube

Drawtube

Tripod

Others

Included:

• Optical tube assembly
• AP-SM equatorial mount
• Eyepiece
• APP-TL130 tripod

For gazing wide and bright field of view, and faint objects like nebulae and star clusters

Featuring excellent rigidity, stability, and portability, the popular PORTA II altazimuth mount with superior 130mm aperture Newtonian reflector outperforms in viewing faint celestial objects like nebulae and star clusters.

This fine optical instrument comes configured with mounting rings, a dovetail plate, and a 6x30 finder with a bracket and shoe. Two 1.25" eyepieces are also included - 1 PL 6mm, and a PL 20mm.

Specifications

In The Box

• Vixen Optics R130Sf Telescope with Porta II Mount
• Porta II Mount with Tripod
• 20mm Eyepiece
• 6.0mm Eyepiece
• 6x30 Finderscope w/bracket and shoe
• 1.25" Eyepiece Adapter
• Tube Rings with 155mm Inner Diameter
• Dovetail Tube Plate

At a glance

An ideal telescope for grab and go observing.
The A70Lf refractor is a basic all-around telescope that gives beginners intriguing views of lunar crators and Saturn's rings.

Specificstions

The easy-to-maintain refractor is an excellent choice for beginners though to experts.

Vixen achromatic objective lens delivers clear images with less colour fringe.

Specifications

Through years of dreaming of the perfect telescope for wide-field imaging, our pursuit of innovation has finally been honored with PlaneWave’s revolutionary DeltaRho 350 f/3 telescope. The DeltaRho 350 is designed for unsurpassed wide-field imaging and ease of use in the field. Since the primary mirror is fixed in place, collimation is quickly achieved by adjusting the tip and tilt of the secondary mirror. With the Delta Rho 350, your astrophotography experience will be second to none!

• Corrected Cassegrain focus optical design
• Aperture – 350 mm
• Focal length – 1050 mm
• Focal Ratio – f/3
• 60mm Image Circle > 3 degrees
• Fixed Primary Mirror
• Collimation performed via 3 tip/tilt screws at the secondary mirror
• Backfocus of 5.651” (143.535 mm) from mounting surface (without focuser and rotator). This distance includes refraction from filters.
• Backfocus of 2.525″ (64.135 mm) with Series-5 focuser and Series-5 Rotator installed (with focuser at midpoint of travel range).
• Built-in primary and secondary dew heaters with temperature sensors
• *L-350 mount seen in product photo is sold separately

Capturing the most stunning astrophotographs possible is something our team is passionate about. From design to manufacture, our goal with the DeltaRho 350 was centered around creating a game-changing wide-field telescope. The DeltaRho 350 is a Cassegrain optical design which means the imaging train is secured at the back of the telescope and does not block the light path compared to prime focus designs, which severely limit users’ ability to operate with filterwheels or large cameras.

The DeltaRho 350 is an incredible breakthrough in telescope technology and ease of use. Operating at f/3 and 1050 mm focal length, the DeltaRho is a wide-field telescope that is sure to revolutionize your astrophotography!

Additionally, the DeltaRho 350 provides a perfectly flat field so your astrophotographs will have stunning clarity from corner to corner of the image without field curvature degrading the photos. Offering the simplicity of single-mirror collimation, the stray light control of advanced baffles, structural performance created through finite element analysis (FEA), and decades of telescope design experience, the DeltaRho 350 is an exceptional telescope. DeltaRho 350 users can experience pinpoint stars edge-to-edge and a 170 x 170 arcminute field of view when using large 16803/4040 size camera sensors. This field of view is nearly 3 times as large as our CDK14! When equipment fades into the background and simply performs, the astrophotography experience becomes even more fun and rewarding!

Optical System

Secondary Mirror

Primary Mirror

Lens Group

Standard Features

Shipping

Included Items

Recommended Accessories

OTA Accessories

• Series-5 Focuser (6011001)
• Series-5 Rotator (6021001)
• Series-5 Controller (600199)

Mount Accessories

• L-350 Direct Drive Mount (600549)
• DeltaRho 350 Piggyback Dovetail (140990)

Imaging Accessories

• Tip-Tilt Adapter for Series-5 Focuser or Rotator to SecureFit (6061006)

After successfully introducing the DeltaRho 350, the DeltaRho 500 is now available for transcending the challenges of-ultra wide field imaging. With a primary mirror that is fixed in place, collimation is quickly achieved with a simple adjustment to the tip and tilt of the secondary mirror. With more than twice the light-gathering power of the DeltaRho 350, maximizing the performance of your astrograph has never been easier due to PlaneWave’s pursuit of the perfect telescope!

• Corrected Cassegrain focus optical design
• Aperture – 508 mm (20″)
• Focal length – 1537 mm
• Focal Ratio – f/3.03
• 70mm Image Circle > 2.6 degrees
• Fixed Primary Mirror
• Collimation performed via 3 tip/tilt screws at the secondary mirror
• 9.166” (232.8 mm) from mounting surface (without focuser and rotator).
• Backfocus of 5.81″ (147.6mm) with Series-5XL focuser and Series-5 Rotator installed (with focuser at midpoint of travel range).
• Built-in primary and secondary dew heaters with temperature sensors
• Compatible with L-500 or 600 series direct drive mounts.

Our team at PlaneWave is passionate about designing exceptional telescopes so that users around the world are able to capture the most awe-inspiring astro images possible. From design to manufacture, our goal with the DeltaRho 500 was centered around creating a revolutionary wide-field telescope. The DeltaRho 500 is a Cassegrain Optical Design with the imaging train at the back of the telescope to prevent obstruction of the instrument. This offers a real advantage against prime focus designs, which can severely limit users’ ability to operate with filter wheels or large cameras. Witness the incredible breakthrough in telescope technology as the DeltaRho 500 operates at f/3 and 1537 mm focal length, which is sure to revolutionize your astrophotography.

Last, but not least, the DeltaRho 500 provides a flat field, which ensures stunning clarity from corner-to-corner images without field curvature degradation. The DeltaRho 500 offers the simplicity of single-mirror collimation, stray light control of advanced 3D printed baffles, and structural performance created through finite element analysis (FEA). DeltaRho 500 users can experience pinpoint stars edge-to-edge and a 2-degree field of view when using large 16803/4040 (52mm) size camera sensors. This field of view is over twice as large as our CDK 20! This kind of equipment allows users to experience a whole new level of wide-field imaging that can bring them closer than ever to deep space. The DeltaRho 500 allows nothing to stand in between the user and amazing astro images.

Introducing the Fusion series, Sky-Watcher's latest innovation in astronomy, designed to revolutionize your stargazing experience. Launching with the high-quality MAK150, the Fusion series combines advanced features with user-friendly design, offering unparalleled performance and ease of use.

Fusion 120i - MAK150 Key Features:

• Lightweight and Durable: The Fusion 120i mount weighs only 8kg, making it portable yet sturdy, with a payload capacity of 12kg.
• Compact Dimensions: Measuring 335mm x 214mm x 467mm, this mount is ideal for both home observatories and field astronomy.
• Precision Engineering: Equipped with a worm wheel and worm gear transmission mechanism, the Fusion 120i ensures precise movement. The Altitude and Azimuth axes each have 180 teeth, providing smooth and accurate tracking.
• GOTO Functionality: Revolutionize your navigation of the stars with the GOTO function, making it easier than ever to locate celestial objects.
• Wi-Fi Enabled: Control your telescope wirelessly via the SynScan Pro APP and SynScan APP, available on both smartphones and tablets.
• Dual Axis Clutch Locking: Features clutch locking for both Altitude and Azimuth axes, offering greater control and stability during observation sessions.
• Versatile Power Supply: Choose between the built-in rechargeable lithium battery (9.6V 4.5Ah) and an external DC12V-15V 3A power supply for extended use.
• Compatibility: Compatible with OTAs featuring Losmandy style dovetails and Vixen style dovetails, ensuring a wide range of usability.

Why Choose the Maksutov-Cassegrain (MAK150)?

• Superb Image Quality: Maksutovs provide sharp, higher-contrast images due to their all-spherical optical design and the use of a meniscus corrector lens. This design minimises optical aberrations, delivering clearer and more detailed views of celestial objects

• Long focal lengths and sharp optics make "Maks" perfect for planetary and Lunar viewing. Get close up views of craters and mountains on the Moon, rings of Saturn, the moons of Jupiter and even the polar caps on Mars!

Optical Specifications:

EQ Wedge

There's also the Sky-Watcher Fusion Wedge to convert your Fusion mount into an EQ (Equatorial) platform. 

Updated DX Model!

Key Features:

• Honders Advanced Catadioptric optical design
• Radiant Aluminium Quartz (RAQ)™ mirror coatings
• Wide-open 250mm focal length
• FAST f/2 focal ratio
• 125mm aperture diameter
• Lightweight 3.8kg
• 16mm image circle
• Collimatable primary mirror cell
• Rear primary mirror heliacal focuser
• Clamshell rings with a V-style dovetail
• Dual finderscope brackets
• 1.25-inch barrel
• Included accessories: 1.25-inch adapter, male and female M42x0.75
  adapters, dew shield

This new HAC125DX (Honders Advanced Catadioptric) Minigraph is the smallest, fastest telescope dedicated to astrophotography available today. 

This type of telescope, called an astrograph, is designed from the start to take photos of the night sky. You don't look through it, instead it connects to a dedicated astronomy camera from ZWO, QHY and others. This updated "DX" model features a rear focussing mechanism. The 16mm imaging circle well suited for IMX533 and IMX585 based cameras.

It's fast too, at just f/2.0. This means shorter exposure times and you won't even need to worry about autoguiding.  

New Sky-Watcher 150EDX APO Telescope - redesigned body with famous Esprit optics

**Due in late September/August**

Highlights:

• Air Spaced Apochromatic Triplet
• FPL-53 extra low dispersion glass
• Zero detectable colour fringing even on bright objects
• Diffraction limited optics
• Fully multi coated lenses
• 3″ CNC machined 11:1 dual speed linear power focuser – rotatable
• Indexed focuser tube
• Knife-edge baffled system to enhance contrast

The Sky-Watcher 150mm Esprit 150ED Triplet APO Refractor is a high-end  instrument for astro-photographers seeking quality images that only a telescope of this size and optical design can produce. It's also ideal for extended visual observations of deep-space objects due to its remarkable contrast and light gathering ability.

The air spaced apochromatic triplet lenses use the remarkable Ohara FPL-53 ED (extra low dispersion) glass, with 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.

A 2-element field flattener is available separately to iron out the natural off-axis astigmatism and field curvature of the objective lens, leaving a fully corrected 42mm field of view.  Designed with photography in mind, it sits on two tracks above and below the barrel to prevent flexure with a heavy camera attached, and is fully rotatable to perfectly frame a target on the sensor.

In The Box:

• 150/1050 Apochromatic Refractor
• Fixed Dew Shield
• 2″ Dielectric Star Diagonal
• 9×50 Right Angled Erect Image Diagonal
• D Style dovetail Bar
• 2″ to 1.25″ Eyepiece Adaptor
• Aluminium Foam-Lined Case

SPECIFICATIONS

The CDK350 Observatory System from PlaneWave Instruments is a premium setup designed for the astrophotography aficionado and the dedicated astronomy researcher. This system marries the high-performing CDK14 optical tube assembly with the robust L-350 direct-drive mount, creating an unmatched observational platform that excels across a spectrum of applications, from deep celestial studies to sophisticated astrophotography

Key Features of the CDK350 Observatory System

CDK14 Optical Tube Assembly

• Aperture and Focal Length: Boasts a 14-inch aperture and a 2563 mm focal length at an f/7.2 focal ratio, ideal for capturing wide-field views of the cosmos with incredible depth and clarity.
• Advanced Optical Design: Features a Corrected Dall-Kirkham optical design, providing a field free of off-axis coma and astigmatism while achieving a perfectly flat field across a 70 mm image circle, ensuring critically sharp images throughout the entire field.
• High-Quality Construction: Constructed from lightweight yet durable carbon fiber, minimizing thermal expansion and allowing for rapid thermal equilibration, which helps maintain optical precision in fluctuating temperatures.
• Superior Mirrors and Coatings: Fitted with rock-solid fused silica mirrors known for their minimal thermal expansion, paired with premium coatings that enhance light throughput while minimizing stray light for optimal image quality.
• Thermal Management: Integrates an advanced cooling system with multiple fans that promote rapid thermal stabilization, essential for maintaining consistent high-quality imaging during lengthy exposures and minimizing focus shifts caused by temperature variations.

L-350 Direct Drive Mount

• Direct Drive Motors: Features sophisticated direct-drive motors on each axis, ensuring smooth, swift, and near-silent movement of the telescope with zero backlash and zero periodic error, perfect for both tracking celestial objects and quick repositioning.
• High-Resolution Encoders: Comes equipped with high-resolution optical encoders on both axes, delivering precise positioning and movement, which is critical for high-quality astrophotography and detailed celestial research.
• Azimuth Dovetail Balance System: Includes a finely adjustable balance system that enhances the stability and performance of the setup in both alt-azimuth and equatorial configurations, critical for sustained accurate tracking and easing the strain on the mount during prolonged observations.
• Rapid Target Acquisition: Boasts direct-drive motors capable of impressive slew speeds up to 50 degrees per second, allowing for quick and efficient targeting of celestial objects and satellites, vital for dynamic observations and responsive astrophotography.

Application-Specific Advantages

Astrophotography

The CDK350 is a powerhouse for astrophotographers, offering exceptional tracking accuracy and image stability which facilitate capturing breathtaking celestial images with intricate details and vibrant colors.

Astronomy Research

Researchers will find the CDK350 invaluable for its consistent performance and precise data collection capabilities. It serves as a reliable platform for photometry, spectroscopy, and minor planet tracking, providing a robust foundation for scientific exploration and discovery.

Visual Observations

For enthusiasts of visual astronomy, the CDK350 delivers vibrant and detailed views of the universe. Its substantial aperture and high-quality optical components ensure superb viewing of planetary, lunar, and deep-sky objects, enhancing every observational session.

Space Situational Awareness (SSA) and Space Domain Awareness (SDA)

With its swift and precise repositioning capabilities, the L-350 mount in the CDK350 system is capable of tracking satellites and space debris. However, it's important to note that while the L-series mounts are highly effective for astrophotography and research applications, they might not meet the optimal performance standards required for dedicated SSA/SDA operations. For those needs, we recommend exploring our T-600 Direct-Drive Gimbal, specifically engineered to exceed the demanding requirements for SSA/SDA applications, ensuring superior tracking and responsiveness in monitoring and cataloging space objects.

Mount System

Control system

Optical Systems

Mechanical Structure

Motion control

Included items 

The CDK300 Observatory System from PlaneWave Instruments, an elite configuration designed specifically for the astrophotography enthusiast and serious astronomy researcher. This system combines the precision-engineered CDK12.5 optical tube assembly with the robust L-350 direct-drive mount, offering an unparalleled observational experience that excels in a wide array of applications from detailed celestial studies to advanced astrophotography.

Key Features of the CDK300 Observatory System

CDK12.5 Optical Tube Assembly

• Aperture and Focal Length: Features a 12.5-inch aperture and a 2541 mm focal length at an f/8 focal ratio, perfect for capturing deep-sky objects with exceptional depth of field and clarity.
• Advanced Optical Design: Utilizes a Corrected Dall-Kirkham optical design, eliminating off-axis coma and astigmatism while achieving a perfectly flat field across a 52 mm image circle, ensuring sharp and detailed images across the entire field.
• High-Quality Construction: The optical tube is constructed from lightweight and sturdy carbon fiber, reducing thermal expansion and allowing rapid cooling, which maintains optical alignment in varying temperatures.
• Superior Mirrors and Coatings: Equipped with rock-solid fused silica mirrors known for their low thermal expansion, along with high-quality coatings that maximize light transmission and minimize stray light.
• Thermal Management: Incorporates a sophisticated cooling system featuring three rear cooling fans and four boundary layer fans. This setup rapidly achieves thermal equilibrium, essential for maintaining consistent imaging quality during long exposure astrophotography and reducing thermal-induced focus shifts.

L-350 Direct Drive Mount

• Direct Drive Motors: Employs state-of-the-art direct-drive motors on each axis, providing smooth, fast, and ultra-quiet movement of the telescope with zero backlash and zero periodic error.
• High-Resolution Encoders: Integrated high-resolution encoders offer precise positioning, essential for capturing high-quality astrophotography and conducting detailed astronomical research.
• Azimuth Dovetail Balance System: Provides precise center of gravity adjustments, enhancing the stability and performance of the system in both alt-azimuth and equatorial configurations, crucial for maintaining accurate tracking and reducing strain on the mount during extended observations.
• Azimuth Dovetail Balance System: Provides precise center of gravity adjustments, enhancing the stability and performance of the system in both alt-azimuth and equatorial configurations, crucial for maintaining accurate tracking and reducing strain on the mount during extended observations.
• Rapid Target Acquisition: Equipped with direct-drive motors capable of slew speeds up to 50 degrees per second, enabling quick and efficient targeting of celestial objects and satellites, crucial for dynamic observations and time-sensitive astrophotography.

Application-Specific Advantages

Astrophotography

The CDK300 system is a powerhouse for astrophotographers, providing exceptional tracking accuracy and image stability which allow for capturing breathtaking celestial images with intricate details and vibrant colors.

Astronomy Research

Researchers will find the CDK300 invaluable for its consistent performance and precise data collection capabilities. Ideal for photometry, spectroscopy, and minor planet tracking, it serves as a reliable platform for scientific exploration and discovery.

Visual Observations

For those who enjoy visual astronomy, the CDK300 offers vibrant and detailed views of the cosmos. Its large aperture and high-quality optical components make it perfect for viewing planetary, lunar, and deep-sky objects, enriching every observational session.

Space Situational Awareness (SSA) and Space Domain Awareness (SDA)

With its swift and precise repositioning capabilities, the L-350 mount in the CDK300 system is capable of tracking satellites and space debris. However, it's important to note that while the L-series mounts are highly effective for astrophotography and research applications, they might not meet the optimal performance standards required for dedicated SSA/SDA operations. For those needs, we recommend exploring our T-600 Direct-Drive Gimbal, specifically engineered to exceed the demanding requirements for SSA/SDA applications, ensuring superior tracking and responsiveness in monitoring and cataloging space objects.

Mount System

Control System

Optical Systems

Mechanical Structure

Motion Control

Included Items

Superb optical performance thanks to Canon Optron, Inc. fluorite glass elements in the optical construction. The precise optical design results in an extremely sharp image with practically no chromatic aberrations.

Recommended for starry sky, nebula, star cluster, and planet observation.

Main Features

• Modular BORG Design
• Apochromat fluorite glass elements.
• Objective lens optical design: 2 elements in 2 groups, fluorite element, apochromat, fully multicoated.
• Erect prism (included) allows users to observe both on-ground objects and celestial bodies.
• 20mm and 9mm eyepieces included.
• Arca-Swiss Quick Release System tripod collar.
• Ultra-lightweight of 962 grams.
• Objective lenses and major parts are Made in Japan.

The BORG 107FL Telescope Set CR is the premium model BORG telescope, designed for professional astro-watchers. This telescope features a 600mm focal length objective lens that incorporates high-end apochromat fluorite glass elements from Canon Optron, Inc.

Axial chromatic aberrations are suppressed even further with the 107FL objective lens when matched against the 90FL. The BORG 107FL Telescope Set CR is constructed with a lightweight and compactable carbon fiber barrel. Arca-Swiss Quick Release base plates are included for tripod mounting. The BORG 107FL Telescope Set CR is recommended for starry sky, nebula, star cluster, and planet observation.

You can convert this telescope to tele lens by swapping the prism and eyepiece with a BORG camera mount adapter (sold separately).

Main Features

• Fluorite glass elements from Canon Optron, Inc. are incorporated in the optical design for ultimate resolution and minimal axial chromatic aberrations.
• Objective lens optical construction: 2 elements in 2 groups, fluorite apochromat, fully multicoated.
• Robust and beautiful carbon fiber barrel.
• BORG 80Ø barrel system.
• Rack & pinion focusing system.
• Erect prism (included) allows users to observe both on-ground objects and celestial bodies.
• 20mm and 9mm eyepieces included.
• Super lightweight at 3.7 kilograms (including accessories).
• Arca-Swiss Quick Release System tripod plate.
• Objective lenses and major parts are Made in Japan.

'CR' stands for carbon fiber barrel and rack & pinion focusing system.

Camera mount adapters and other camera components are sold separately.

Specifications

180mm/2700mm Skymax 180 Maksutov-Cassegrain OTA – High Performance Optical Tube Assembly

The Sky-Watcher Skymax 180 Maksutov-Cassegrain OTA Telescope is perfect for the seasoned enthusiast moving up to a more powerful scope. The larger aperture enables more detailed views of our close planetary neighbours and sharper images of deep space objects.

Maksutov-Cassegrain Advantage
This telescope design has the inherent advantage of minimizing coma aberrations. It also presents a flatter and a more improved edge to edge clarity. Wide angle views of star fields and clusters have never looked so good!

Bring it to Your Favorite Viewing Spot
These Optical Tube Assemblies have a distinct advantage of being designed for use with different mounts. As long as the standard adaptors are present, you should be able to attach the OTA on it. The quick release mechanism enables you to assemble the tube quickly. It also allows you to make minor adjustments to the tube like a stroll in the park.

The ZWO FF80 APO is a refractive astrograph with a powerful flatfield optical design which saves you from the expensive cost of a field flattener. It eliminates the trouble of calculating the back focus distance of the flattener and connecting various accessories to achieve that distance. You can just connect any possible accessories you need. As long as the target is focused, the whole optical system is perfect for imaging. This makes the whole setting up process much more convenient, and saves you time, allowing you to pay more attention to the image shooting itself.

The ZWO FF80 APO is also a nice choice for your visual observation. It fits diagonals as well as various eyepieces and can achieve a perfect focus, and can even be used to observe planets with a super-high magnification eyepiece.

The whole design of the telescope is compact and lightweight. The OTA weighs only 3.9kg, and the full package with tube rings and other accessories weighs 4.7kg. It has an aperture of 80mm. The focal ratio is f/7.5 and the focal length is 600mm.

The ZWO FF80 APO adopts a 3+1 quadruplet lens structure which contains two pieces of ED glass that can effectively reduce chromatic aberration and enhance clarity and sharpness. It supports the full-frame imaging circle and has a fine spot diagram with tiny distortions of the peripheral stars. The 3" rigid focuser comes with a new-type 360°rotator with scales and a finder base. M76, M68, M54, and M48 camera adapters are also attached, and the M48 adapter has a 2” female thread for installing filters.

ZWO FF80 APO Main Features

Quadruplet air-spaced APO design - No need to calculate back focus

Small and round stars - with a central RMS radius of 3um

Various adapters - M76/ M68/ M54/ M48

Dual speed (1:10) focuser - Support both fine and coarse adjustment

No need for a separate field flattener - Self-flattening design

Supports full-frame cameras - Produces a 44mm image circle

Focal reducer -

Specifications

SKU: ZWO-FF80-APO

The ZWO FF130APO is a refractive astrograph with a powerful flatfield optical design which saves you from the expensive cost of a field flattener. It eliminates the trouble of calculating the back focus distance of the flattener and connecting various accessories to achieve that distance. You can just connect any possible accessories you need. As long as the target is focused, the whole optical system is perfect for imaging. This makes the whole setting up process much more convenient, and saves you time, allowing you to pay more attention to the image shooting itself.

Compared to the ZWO FF107 APO, the ZWO FF130 APO has a larger size. The aperture is 23mm larger. The focal length at f7/7 is also longer, this will yield higher details and slightly higher magnifications but with a field of view suitable for all deep-ky objects. The longer focal length will be especially effective on planetary and larger deep-sky objects which, when combined with the larger 130mm aperture, will provide stunning details in a reasonable time.

The ZWO FF130 APO with its quadruplet lens structure which contains two pieces of ED glass will control chromatic and other aberrations. With its self-flattening design, the ZWO FF130 APO offers strong advantages in astronomical shooting. It supports a medium frame 60mm image circle, has a fine spot diagram with tiny distortion on the peripheral stars, and its central RMS radius is less than 2 microns.

The OTA weighs only 10.5 kg, and the full package with tube rings and other accessories weighs 12.5kg. The 3.4″ rigid focuser comes with a new-type 360°rotator with scales and a finder base. M86, M68, M54, and M48 camera adapters are also attached, and the M48 adapter has a 2” female thread for installing filters. When used with the 3" 0.7x flat-field reducer, the telescope can reach a focal ratio of f/5.4 and a focal length of 700mm, effectively reducing exposure time. The Multifunctional handle comes with a central slot for attaching an M6 screw with an M6 screw hole. standard KLOsmandy dovetail plate, together with sturdy double rings. It is perfectly suitable for viewing and shooting.

ZWO FF130 APO Main Features

Quadruplet air-spaced APO design – No need to calculate back focus

Small and round stars – with a central RMS radius of less than 2um

Various adapters – M86/ M68/ M54/ M48

Dual speed (1:10) focuser – Support both fine and coarse adjustment

No need for a separate field flattener – Self-flattening design

Supports medium-frame cameras – Produces a 60mm image circle

Focal Reducer -

Specifications

The ZWO FF107 APO is a refractive astrograph with a powerful flatfield optical design which saves you from the expensive cost of a field flattener. It eliminates the trouble of calculating the back focus distance of the flattener and connecting various accessories to achieve that distance. You can just connect any possible accessories you need. As long as the target is focused, the whole optical system is perfect for imaging. This makes the whole setting up process much more convenient, and saves you time, allowing you to pay more attention to the image shooting itself.

The ZWO FF107 APO is also a nice choice for your visual observation. It fits diagonals as well as various eyepieces and can achieve a perfect focus, and can even be used to observe planets with a super-high magnification eyepiece.

The whole design of the telescope is compact and lightweight. The OTA weighs only 5.7kg, and the full package with tube rings and other accessories weighs 6.9kg. It has an aperture of 107mm. The focal ratio is f/7 and the focal length is 749mm.

The ZWO FF107 APO adopts a 3+1 quadruplet lens structure which contains two pieces of ED glass that can effectively reduce chromatic aberration and enhance clarity and sharpness. It supports the full-frame imaging circle and has a fine spot diagram with tiny distortions of the peripheral stars. The 3″ rigid focuser comes with a new-type 360°rotator with scales and a finder base. M86, M68, M54, and M48 camera adapters are also attached, and the M48 adapter has a 2” female thread for installing filters.

ZWO FF107 APO Main Features

Quadruplet air-spaced APO design – No need to calculate back focus

Small and round stars – with a central RMS radius of 3um

Various adapters – M86/ M68/ M54/ M48

Dual speed (1:10) focuser – Support both fine and coarse adjustment

No need for a separate field flattener – Self-flattening design

Supports full-frame cameras – Produces a 44mm image circle

Focal Reducer -

Specifications

SKU: ZWO-FF107-APO

Tele Vue NP101is Specifications

**Special Price on the BINTEL Display Model! One only available**

Highlights:

• Ideal for visual observation and astrophotography.
• Designed for the amateur astronomer or photographer who wants to view and photograph the moon, planets, and deep sky objects.
• Features FPL53 "super" extra-low dispersion (ED) glass in a fully multicoated apochromatic lens system that corrects for both spherical and chromatic aberrations, astigmatism, and off-axis comas.
• This correction creates a wide flat field of view without distortion and removes the blue-tinted halo effect for true high-contrast color transmission.
• Can accept both 2" and 1.25" eyepieces and accessories for visual use.
• Threads on the drawtube allow direct connection of T-rings and other camera mounts.

A ring spacer placed around the objective lens refines star images beautifully in astrophotography.

In the previous SD81S model, a set of three tiny tin foils are placed around the objective lens as a spacer between the doublet lens. The end of the tin foils protruding over the objective lens obstruct the incoming light. As a result, the protruding tin foils make the light of diffraction of stars chipped radially. Exchanging the tin foils for the spacer ring makes the diffraction of the stars' light equal. It allows you to create more refined and beautiful star images in your astrophotography.

The SD lens suppresses residual chromatic aberration far below the threshold of visibility.

A lens of refracting telescopes has chromatic aberration which is caused by different wavelength of visible light (colors) focusing at different distances. The Vixen SD lenses, made of FPL53 super extra-low dispersion glass, allow for correcting the chromatic aberration over a wide spectrum of light. The SD81SII delivers outstandingly sharp images with high contrast for both visual and photographic applications. Moderately bright F7.7 images will satisfy the most demanding visual astronomer or astrophotographer.

A short optical tube in length is handy for not only visual observation but also astrophotography.

The ED81SII optical tube has a moderate short length to enable you to carry and set it up readily. Also, a lightweight optical tube allows you to balance it with fewer counterweights. The ED81S comes equipped with a metal carry handle and the Vixen standard dovetail slide bar M for quick attaching and detaching. The provided Flip mirror diagonal switches incoming light to allow for using two eyepieces of different magnifications alternately. Also, you can install a camera on the straight side and view an image through an eyepiece on the right-angled side of the flip mirror diagonal.

Full-frame imaging with a DSLR camera.

Using an SD reducer HD kit or an SD Flattener SD kit, which are available optionally, the SD80SII provides an image circle of 44mm, adequate for taking photos with a DSLR camera. (Photo) M8, M20 nebulae taken with Vixen SD81SII with SD reducer HD kit (compound focus 496mm) and Pentax K-1 at ISO1600, 49 minutes exposure.

Optional accessories to expand your pleasure of taking astrophotography.

SD Reducer HD Kit: This kit includes a flattener lens to be combined with a reducer lens for a flat and wide imaging field when you use them with the SD81SII, SD103SII, or SD115SII optical tube. The reducer lens reduces a focal length by 0.7X. Direct Wide Photo Adapter 60DX: It is available for Canon EOS or Nikon DSLR cameras. It is possible to change the orientation of a camera for a framing of the photographic field.

Wide Photo Adapter 60DX

High precision camera adapters for prime focus astrophotography are optionally available for Canon EOS and Nikon. The Wide Photo Adapter 60DX is designed to be an integrated camera mount reducing vignetting to the maximum. They are highly effective with full-frame DSLR cameras, and can be used with SD series refractors (in combination with the SD Reducer HD Kit or SD Flattener HD Kit).

Specifications