BLX-1 Lithium Ion Rechargeable Battery

A high-capacity, 2,280 mAh lithium-ion battery. It can be recharged approximately 500 times. This battery is compatible with the OM-1 and HLD-10 Power Battery Holder.

This camera adapter for the Optec Lepus focal reducer is 50mm long and features a male M42 x 0.75mm T-thread making it suitable for any camera with 55mm depth-to-sensor or "flange focal distance". This adapter is equivalent to #19392-47.

Add a T-ring to mate with Canon, Nikon, or other DSLR or mirror-less cameras.

Affordable replacement diagonal for all telescopes with 1.25" focusers

• 90° viewing angle
• Comfortable viewing position
• For high-end telescope systems
• 5 Years warranty for Star Diagonals

High quality 2" telescope diagonal with 1.25" adaptor

The  SkyWatcher 2″ 90° Dielectric Star Diagonal is a high performance diagonal for high-end telescopes. The high reflectivity of the mirror (99%) offer a bright image without loosing luminosity. The high optical correction of the mirror (1/10 lambda) does not compromise the resolution or the contrast of the image.

The CNC body of the diagonal is both solid and elegant, the telescope side  connection in threaded for 2″ filters while the eyepiece side has a brass compression ring for not damaging the barrels of the eyepieces. The diagonal includes a 2″ to 1.25″ adapter also equipped with brass compression ring.

Please note this accessory can be used only on already telescopes equipped with a 2″ focuser.

Compact, foldable and pocket-friendly, the Nikon SPORTSTAR EX II 8x25 binoculars are made for effortless viewing on the go. As the next generation of Nikon’s popular SPORTSTAR EX series, it offers improved ergonomic performance and deliver sharp, vivid views for sightseeing and everyday exploration.

Highlights

• Convenient fold-up design fits most pockets and packs
• Built from sturdy aluminium alloy to protect against the occasional drop or bump.
• Coated in textured rubber armor for added protection and sure grip, wet or dry.
• Fully waterproof, making it ideal for paddlesports, boating, on the river and of course spending a day at of one our wonderful Australian beaches
• With 8x magnification, you can track birds and fast-moving sports easier with a wider view that brings more of the scene into focus.
• Multilayer-coated lenses. Cut through the glare and harsh backlighting for a high-contrast view with vibrant, lifelike colours.
• Fogproof construction. Especially useful when moving from a warm vehicle or building into the cold winter air.
• Turn-and-slide rubber eyecups with multi-click facilitate easy positioning of eyes at the correct eyepoint
• Large focusing knob. Smoothly dial in precise focus, even when wearing gloves.
  

Specifications

*1: Apparent field of view: Apparent field of view is calculated based on the ISO14132-1:2015 standard. *2: Folded.

New, larger version of some our most popular quality binoculars

Experience stargazing, marine adventures, and birdwatching like never before. The MONARCH M5 10x50 delivers the lightest 50 mm ED glass binoculars in its class*, producing high-resolution views with natural colour fidelity. Discover the world in unmatched realism and detail.

Highlights

• Lightest* body among 50mm-diameter objective lens  binoculars employing extra-low dispersion (ED) glass
• Large-diameter objective lenses deliver dynamic views
  Stylish, refined exterior design
• All lenses and prisms are multilayer-coated for brighter images
• Dielectric high-reflective multilayer and phase-correction coatings are employed
• Waterproof (up to 1m/3.3 ft. for 10 minutes) and fog-free with O-ring seals and nitrogen gas
• Long eye relief design ensures a clear field of view, even for eyeglass wearers
  Turn-and-slide rubber eyecups with multi-click facilitate easy positioning of eyes at the correct eyepoint
• Rubber armouring for shock resistance and a firm, comfortable grip
• Lightweight body uses fibreglass-reinforced polycarbonate resin
  

With well-balanced optical performance that delivers clear, natural colour fidelity, the MONARCH M5 binocular series is designed for easy, active use. The use of ED (extra-low dispersion) glass compensates chromatic aberration, delivering contrast-rich and true-to-life colour reproduction while offering excellent cost-performance. In addition, dielectric high-reflective multilayer prism coating and phase-correction coating provide a bright, clear field of view. Both lightweight and compact, these binoculars are comfortable to carry and ideal for all kinds of activities — from birdwatching to sports events and various other outdoor adventures in a wide range of environments.

Specifications

*1: Apparent field of view is calculated based on the ISO14132-1:2015 standard.
*2: When minimum magnification (10x) is selected.

*As of February 17th, 2026, among binoculars with a 50mm-diameter objective lens and 10× or 12× magnification employing an Extra-low Dispersion Lens, that had been released at that time. Based on Nikon Vision research.

New larger version of some our most popular quality binoculars

Experience stargazing, marine adventures, and birdwatching like never before. The MONARCH M5 12x50 delivers the lightest 50 mm ED glass binoculars in its class*, producing high-resolution views with natural colour fidelity. Discover the world in unmatched realism and detail.

Highlights

• Lightest* body among 50mm-diameter objective lens  binoculars employing extra-low dispersion (ED) glass
• Large-diameter objective lenses deliver dynamic views
  Stylish, refined exterior design
• All lenses and prisms are multilayer-coated for brighter images
• Dielectric high-reflective multilayer and phase-correction coatings are employed
• Waterproof (up to 1m for 10 minutes) and fog-free with O-ring seals and nitrogen gas
• Long eye relief design ensures a clear field of view, even for eyeglass wearers
  Turn-and-slide rubber eyecups with multi-click facilitate easy positioning of eyes at the correct eyepoint
• Rubber armouring for shock resistance and a firm, comfortable grip
• Lightweight body uses fibreglass-reinforced polycarbonate resin
  

With well-balanced optical performance that delivers clear, natural colour fidelity, the MONARCH M5 binocular series is designed for easy, active use. The use of ED (extra-low dispersion) glass compensates chromatic aberration, delivering contrast-rich and true-to-life colour reproduction while offering excellent cost-performance. In addition, dielectric high-reflective multilayer prism coating and phase-correction coating provide a bright, clear field of view. Both lightweight and compact, these binoculars are comfortable to carry and ideal for all kinds of activities — from birdwatching to sports events and various other outdoor adventures in a wide range of environments.

Specifications

*1: Apparent field of view is calculated based on the ISO14132-1:2015 standard.
*2: When minimum magnification (10x) is selected.

*As of February 17th, 2026, among binoculars with a 50mm-diameter objective lens and 10× or 12× magnification employing an Extra-low Dispersion Lens, that had been released at that time. Based on Nikon Vision research.

• Binoviewers improve views dramatically, producing a three dimensional effect that you’ll love!
• Using two eyes for observing instead of one lets you see more detail, reduces eye fatigue, and increases contrast
• For use with catadioptric telescopes and other telescopes with sufficient back focus
• Includes an aluminum carry case with foam-lined interior
• Requires a matching pair of 1.25” eyepieces, sold separately

Introducing the OM-3 Astro

Experience creative freedom redefined under open skies. The OM SYSTEM OM-3 ASTRO is a dedicated astrophotography camera designed to push beyond daylight, capturing stars, galaxies, red nebulas, and nightscapes with confidence and precision. From glowing horizons to silent, remote dark skies, it lets you explore the universe and your creativity, wherever the night takes you.

Dedicated power for astrophotography

A dedicated astrophotography camera engineered to capture faint Hα light, from expansive starscapes to deep-sky detail.

Celestron 照明 RACI 寻星镜

Celestron 照明 RACI 寻星镜是对大多数施密特-卡塞格林望远镜的常规寻星镜的重大升级。50 毫米光学元件可产生明亮、清晰的图像，放大倍数为 9 倍，视场角为 5º。同时，直角、正确图像设计可使物体保持正面朝上，左右正确。您将享受能够在宽阔的视野中定位和跟踪物体的不同之处。目镜模块可向左或向右旋转，以便您找到完美的视角。

与单十字线目镜不同，双十字线标线不会遮挡视野中心的目标。无论您是校准电脑望远镜还是自行寻找深空物体，双十字线标线都可以独立对焦，不受取景器本身的影响。电池供电的照明器会以柔和的红光照亮十字线，并且可以通过转动开/关旋钮轻松调节照明。

Celestron 9x50 RACI 寻星镜配有坚固的支架，由两个环和一个集成燕尾槽组成。使用超大号翼形螺钉可以轻松调整寻星镜的对准度。燕尾槽可以轻松安装和拆卸大多数施密特-卡塞格林和 EdgeHD 光学镜筒组件（包括 NexStar 和 Evolution 系列），而不会影响寻星镜的对准度。

Bintel Lunar New Year Accessory Bundle

Celebrate the Moon with a trio of accessories designed to enhance your lunar observing experience. The Bintel Lunar New Year Accessory Bundle is perfect for anyone who wants to see more detail and enjoy longer, more comfortable viewing sessions.

This bundle includes:

Celestron T-Adapter-Barlow Lens Universal (1.25")
A flexible 2× Barlow and T-adapter all in one. Use it to double the magnification of your 1.25" eyepieces, giving you closer views of lunar craters, mountains, and valleys. Compact and lightweight, it lets you explore the Moon and planets in more detail without complicated setups.

Celestron Moon Filter (1.25")
The Moon is bright and beautiful, but its glare can make details hard to see. This simple screw-on filter reduces brightness and improves contrast, helping your eyes relax and revealing subtle surface features. Perfect for evenings near the full Moon, and useful for bright planets or terrestrial scenes.

Orion Moon Map 260
A laminated, fold-out map showing over 260 lunar features, including craters, mountain ranges, valleys, and historic landing sites. Both correct-image and mirror-image views are included, making it easy to identify features through binoculars, a telescope, or even with the naked eye.

Together, these three accessories make the Bintel Lunar New Year Accessory Bundle the ideal kit for exploring the Moon. See more, understand what you’re seeing, and enjoy longer, more detailed lunar observing sessions.

The TMB Super Plossl Series

The TMB Super Plossl series is a clear upgrade over the basic eyepieces supplied with most telescopes, offering sharper images, better contrast, and improved build quality at an accessible price point.

Using a classic 4 element Plossl optical design and a 50 degree apparent field of view, these eyepieces deliver bright, well corrected views across the field. Fully multi coated optics enhance light transmission and reduce internal reflections, helping planetary detail stand out more clearly and deep sky objects appear cleaner and more defined compared to standard kit eyepieces.

Each eyepiece features a standard 1.25 inch barrel with filter threads, solid metal construction, and protective caps, making them a dependable addition to any observing kit.

The TMB 40mm Super Plossl

The 40mm TMB Super Plossl provides the lowest magnification in the range, producing bright, relaxed views that are well suited to large extended objects and longer focal length telescopes.

Eye relief is very generous, offering a comfortable viewing experience.

This focal length is particularly useful when a softer, lower power view is preferred or when maximising brightness for faint, diffuse targets.

TMB PlanetView Planetary Eyepieces:

The TMB PlanetView Planetary Eyepiece series is designed for high-magnification planetary and lunar observing, delivering sharp, high-contrast views with excellent eye comfort. Choosing the right focal length for your telescope typically provides a significant upgrade in magnification and fine detail compared to the stock eyepieces supplied with most telescopes, making planetary features clearer and easier to observe. Featuring a 5-element optical design and a wide 58° apparent field of view, these eyepieces offer a more immersive experience than traditional narrow-field planetary designs while maintaining the crisp detail needed for serious observing.

Fully multi-coated optics and internal baffling maximise light transmission and suppress stray reflections, improving contrast on subtle planetary features and fine lunar detail. The large eye lens and generous eye relief make these eyepieces comfortable to use, especially during long observing sessions or when wearing glasses.

Built with an all-metal housing and a fold-down rubber eyecup, TMB PlanetView eyepieces are robust, practical, and compatible with all standard 1.25" focusers and filters. They are also Bintel’s number one recommended first upgrade for most telescopes, offering one of the simplest and most noticeable improvements you can make to planetary and lunar performance.

The 3.2mm TMB PlanetView:

The TMB PlanetView 3.2mm Planetary Eyepiece is ideal for high-power planetary observing with short to medium focal length telescopes.

Works particularly well with:

• • Celestron StarSense Explorer DX 130AZ Newtonian Telescope

  • Celestron StarSense Explorer 130mm Tabletop Dobsonian Telescope

Specs:

Hubble UL32 – 32" Lightweight Reflector Telescope

The Hubble UL32sg is a flagship 32-inch Dobsonian telescope designed for serious deep-sky observers, research-grade visual work, and advanced EAA applications. With a massive 32-inch primary mirror, the UL32sg delivers 16 times the light grasp of an 8-inch telescope and four times that of a 16-inch, revealing galaxies, nebulae, and fine structure at a level few instruments on Earth can match.

Despite its extraordinary aperture, the UL32sg is engineered to remain as compact and transportable as possible for its class. Fully assembled, the telescope weighs around 150 kg and features a modular, all-metal construction with sectional truss tubes and a folding altitude bearing structure. A real mirror box provides safe protection for the primary mirror during transport and storage.

Light, Strong, Compact and Still Portable

The UL32sg is built using precision-machined aluminium alloy components, extensively modelled with CAD and FEA to optimise structural rigidity while minimising weight. Eight rigid sectional truss tubes ensure excellent stiffness and collimation stability, even at extreme elevations.

While the UL32sg is not a casual backyard instrument, it remains one of the most compact and practical 32-inch class telescopes available, capable of being transported and assembled by a small team for dark-sky expeditions, observatories, and research installations.

Revolutionary Smart Go-To System

The UL32sg is supplied exclusively in a Smart Go-To configuration, built around the state-of-the-art OnStep control system. This advanced platform combines fully motorised Go-To, high-resolution encoders, and a revolutionary plate-solving smart finder for unmatched pointing accuracy.

Using the system is simple: select a target via the smart hand controller or third-party software such as SkySafari or Stellarium, then with a single button press the telescope captures an image, plate-solves its position, and automatically refines its pointing until the target is perfectly centred.

The system supports automated star alignment, automated “Star Shows” such as Messier Marathons, intelligent routing to reduce slewing time by 30–50%, and full EAA live stacking for electronically assisted observing.

Connectivity includes built-in WiFi and Bluetooth, INDI and ASCOM drivers, real-time clock, spiral search, park/unpark, and full sidereal, lunar, and solar tracking rates. Control is available via smart hand controller, desktop software, or mobile apps on Windows, macOS, Linux, iOS, and Android.

Exclusive Sandwich Mirror Technology

The UL32sg uses a lightweight sandwich primary mirror designed to reach thermal equilibrium far faster than traditional solid mirrors. Rapid cooling dramatically reduces mirror seeing and internal turbulence, allowing the telescope to achieve its full optical potential much sooner in real-world conditions.

Unlike thick solid mirrors that may never stabilise during changing temperatures, the sandwich design delivers sharp, stable images without the need for active cooling systems, avoiding vibration and mechanical complexity.

Enhanced Optical Coatings

Both primary and secondary mirrors receive 96% enhanced dielectric coatings with multiple precision-controlled layers. These coatings maximise reflectivity, reduce scatter, and provide excellent chemical and mechanical durability, delivering bright, high-contrast images even at extreme magnifications.

Real Mirror Cell in a Real Mirror Box

The UL32sg features a fully engineered 27-point flotation mirror cell with sling and 90-degree pivoting lateral supports. This system prevents mirror deformation and eliminates astigmatism commonly caused by simpler collimation designs.

The independent three-point rod-end collimation system allows precise adjustment without stressing the mirror edge, maintaining optical integrity under all observing orientations.

Dual-Speed 2" Linear Bearing Crayford Focuser

The UL32sg is fitted with a precision 2-inch dual-speed linear bearing Crayford focuser, capable of handling heavy modern eyepieces and imaging equipment. The fine focus control provides ten times finer adjustment for critical focusing at high power or during EAA use, with approximately 50 mm of travel.

Specifications (UL16)

A new modern large Maksutov telescope for superb viewing and imaging

• 200 mm Maksutov Cassegrain flat field optics Edge to edge sharpness and contrast
• 2000 mm focal length at F10 Large 44 mm image height support
• Optional 0.7x focal reducer compatibility
• Compact well balanced OTA design

Overview

Available May 2026!

Discover why "Maks" are renowned for their sharp imaging and visual observation with the new Sky-Watcher Skymax 200DX Maksutov Cassegrain Telescope

The Sky-Watcher Skymax 200DX Maksutov Cassegrain Telescope is a premium 200 mm optical system built for astronomers and astrophotographers who want exceptional sharpness, strong contrast, and consistent field flatness across a large image circle.

Designed around an optimised flat field Maksutov Cassegrain layout, the Skymax 200DX delivers clean, accurate performance for detailed visual observation and high resolution imaging.

With an effective aperture of 200 mm and a focal length of 2000 mm at F10, this telescope excels at revealing fine surface detail on the Moon and planets while also delivering strong results on compact deep sky targets. Its advanced optical design helps suppress off axis coma and other aberrations, producing consistent star images from the centre of the field right through to the edge.

For imaging applications, the Skymax 200DX includes a generous 44 mm image height, making it well suited for modern large sensor cameras and full frame astrophotography workflows. For users wanting wider fields and faster exposure times, an optional 0.7x focal reducer is available, expanding flexibility without taking away from the telescope’s refined optical purpose.

Despite its high performance optical profile, the Skymax 200DX remains compact and well balanced, making it a practical option for permanent observatory setups or portable imaging rigs when paired with a suitably rated equatorial mount.

Specifications

NBM – Challenger/DX:

nanoblock is a micro sized building block from Japan.  Start building on a scale never seen before! This amazingly small micro sized block makes it possible to create detailed masterpieces from tiny animals and miniature musical instruments to architectural landmarks from around the globe. With exciting models to appeal to every personality, nanoblock is sure to captivate builders of all ages. 

Features:

- With between 450-800 blocks, each nanoblock Challenger set takes between 90-180 minutes to complete

- Includes detailed colour instructions

- Popular with boys and girls 12+ years

- Loved by the young and young at heart

- Collect them all!

Main Sensor

Guide Sensor

Start Your Astrophotography Journey with everything at your fingertips!
The ASI585MC/MM Air integrates imaging, guiding, and smart control, featuring ZWO's self-developed "Dual Sensor + ASIAir" integration technology. Say goodbye to complex setups and enjoy a seamless, hassle-free astrophotography experience.

Effortlessly Connect Multiple Devices
4x USB 2.0, 2x DC12V 10A, 1x USB Type-C
USB 2.0 ports for your focuser, filter wheel, and mount; DC 12V 10A input/output ports for reliable power; USB Type-C port for fast file transfers—you can focus on capturing stunning images without worrying about connectivity issues.

Ample Storage, Explore Without Limits
With 256GB eMMC storage, the ASI585MC/MM Air allows you to capture multiple targets with ease. Rigorously tested with over 300 benchmarks, it ensures system stability. Plus, the USB 2.0 ports support up to 1TB external storage, giving you plenty of room for all your astrophotography needs.

Starvis 2  4K Sensor
Image Sensor Technology Beyond the Human Eye's Sensitivity
Equipped with the upgraded STARVIS 2 image sensor, supporting a higher dynamic range.
With this technology, the sensitivity and signal-to-noise ratio of the ASI585MC/MM Air are greatly enhanced, delivering exceptional image quality.

No Amp Glow
The ASI585MC/MM Air exhibits zero amp glow, which ensures extremely clean dark-field images. No matter how long the exposure and how the gain value, you can easily capture high-quality astrophotographs.

300s exposure image

Note: It is implemented directly at the hardware level, it does not require software control.

Dual-Band Wi-Fi for Stable Signal
Experience unparalleled connectivity with our enhanced external dual-band antenna, supporting both 2.4G and 5G frequencies and offering stable and smooth usage within 20 meters.

Cross-Platform Device Control
Except from ASIAIR App, ASI2600MC Air can also wirelessly connect to ZWO’s proprietary PC control software, ASIStudio, and also other 3rd-party PC software. 3rd-party software can be controlled through ASCOM extended protocol Alpaca (requires ASCOM Platform version V6.6 or higher).

(Note: 2.4G has a longer transmission distance but slightly slower speed compared to 5G. The 20-meter range is based on multiple tests of the 2.4G frequency in open areas.)

Get Fully Control of Your Entire Rig at Your Fingertips
Powered by ZWO’s patented technologies, featuring smartphone connectivity and OTA upgrades for a seamless astrophotography experience.
Connect, capture, and upgrade effortlessly — astrophotography made smart and fun.

Instant Post-Processing and Sharing
Live stack is supported during your imaging session. You may also make adjustments to brightness, contrast and others on the final image. Instantly share your masterpieces on social media platforms and astronomy communities, making your work stand out.

Efficient Cooling, Superior Image Quality
The two-stage TEC cooling system lowers the CMOS sensor temperature by 30°C–35°C below ambient, effectively reducing dark current generation.
Even during long exposures of several hundred seconds, noise remains minimal.
Note: The lower the ambient temperature, the smaller the cooling differential.

*Based on tests at 30°C ambient temperature. Cooling efficiency decreases as ambient temperature drops. While uncommon in Australia, operation below –20°C is not recommended.

Low Read Noise, High Dynamic Range
The camera has a built-in HCG mode, which can effectively reduce readout noise at high gain and allow the camera to maintain the same high dynamic range as it does at low gain. When the gain is 200, the HCG mode is automatically turned on and the Dynamic range reaches a level close to 12bit.The readout noise is as low as 0.7e.

ASI585MC Air

ASI585MM Air

QE
After "ZWO Laboratory" calculation, the peak quantum efficiency of ASI585MC Air is 88%. The peak quantum efficiency of ASI585MM Air is 91%
*Data source: This data is from ZWO Laboratory. The actual quantum efficiency peak value is subject to real-world data.

ASI585MC Air

ASI585MM Air

Dark Current

Power Consumption

Built-in Filters
The ASI585MC Air camera features a UV-IR Cut filter in front of the sensor, serving as a protective window that blocks infrared light.

The ASI585MM Air camera is equipped with an AR (Anti-Reflective) coated protective window, which enhances light transmission and minimizes reflections.

Camera Specification

Image Circle Compatibility Reference
Please refer to the diagram below to understand how ASI585MC/MM Air cameras match with various telescope image circles.

ZWO Air cameras are compatible with telescopes that support APS-C or larger image formats.
Note: When using a telescope with an APS-C image circle, you may notice slight distortion in the guide star. If you’re looking for more accurate and stable guiding performance, we recommend using a telescope with a full-frame or larger image circle.

Camera Details

Connection Diagram

Mechanical Diagram

What’s in the box?

The GPO PASSION™ 20-60×85 APO delivers professional-grade optics for serious observers. Its 85 mm objective and angled eyepiece design support extended viewing sessions without fatigue. The APO lens system, featuring ED glass and aspherical elements—combined with GPObright™ multi-layer coatings and dielectric prism technology produces exceptionally sharp, high-contrast images with minimal colour fringing across the entire zoom range. A generous exit pupil ensures bright, clear performance in low-light conditions and at dusk. The wide field of view and short close focus make target acquisition swift and precise, making this spotting scope ideal for ornithology, wildlife observation, and digiscoping applications where optical excellence matters.

The GPO PASSION™ 16-48×65 APO delivers professional-grade optics in a remarkably compact package. Its 16–48× magnification range and 65 mm objective lens provide exceptional clarity across varied viewing distances, while the APO design minimises chromatic aberration for pristine image quality. Nitrogen-filled and fully waterproof, this scope withstands demanding field conditions. The magnesium housing with ArmorX grip ensures durability and confident handling, whilst the integrated tripod adapter simplifies setup. At its class weight, it's ideal for mobile observers who refuse to compromise on performance. Includes stay-on carrying case.

High-performance wide angle eyepieces for ultra clear astronomical viewing - 85° Apparent Angle of View

The PENTAX XW series 85° Apparent Angle combined with 20mm of Eye Relief produces some the widest and most relaxed viewing possible with your telescope. 

High-Grade Optics for Exceptional Image Quality

The high-performance XW-series optics incorporates high-refraction, extra-low-dispersion lanthanum glass elements to produce a well-balanced image with minimal aberrations. It is particularly designed to reduce the disturbing blackout effect by effectively compensating the spherical aberration of the pupil.

PENTAX-Original Multi-Layer Coating for Outstanding Light Transmission Efficiency

All lens surfaces that come in contact with air are treated with the original multi-layer coating, while all laminated surfaces are treated with the innovative partial coating, to offer the light transmission efficiency of more than 90 percent (an astonishing 96 percent at 550nm) over the visible light spectrum.

Advanced Light-Shielding Technology for Improved Image Contrast

Thanks to PENTAX’s advanced computer simulation technology, the XW series features a light-shielding diaphragm at the most effective position to drastically reduce internal reflections for a brighter, higher-contrast image.

Sleeve Size and Eyecup Design

The XW series provides a choice of two diameter to suit practically all telescope fousers: American-standard 31.7mm version (1.25"), and 50.8mm (2") version.

 When you remove the screw-on eyecup, it also provides a screw thread with a 43mm diameter and a 0.75 pitch

Specifications

High-performance wide angle eyepieces for ultra clear astronomical viewing - 85° Apparent Angle of View

The PENTAX XW series 85° Apparent Angle combined with 20mm of Eye Relief produces some the widest and most relaxed viewing possible with your telescope. 

High-Grade Optics for Exceptional Image Quality

The high-performance XW-series optics incorporates high-refraction, extra-low-dispersion lanthanum glass elements to produce a well-balanced image with minimal aberrations. It is particularly designed to reduce the disturbing blackout effect by effectively compensating the spherical aberration of the pupil.

PENTAX-Original Multi-Layer Coating for Outstanding Light Transmission Efficiency

All lens surfaces that come in contact with air are treated with the original multi-layer coating, while all laminated surfaces are treated with the innovative partial coating, to offer the light transmission efficiency of more than 90 percent (an astonishing 96 percent at 550nm) over the visible light spectrum.

Advanced Light-Shielding Technology for Improved Image Contrast

Thanks to PENTAX’s advanced computer simulation technology, the XW series features a light-shielding diaphragm at the most effective position to drastically reduce internal reflections for a brighter, higher-contrast image.

Sleeve Size and Eyecup Design

The XW series provides a choice of two diameter to suit practically all telescope fousers: American-standard 31.7mm version (1.25"), and 50.8mm (2") version.

 When you remove the screw-on eyecup, it also provides a screw thread with a 43mm diameter and a 0.75 pitch

Specifications

This wide-angle 5mm Nikon eyepiece combines a flat, wide field of view with a high eyepoint for easy viewing. The rubber eyecup and light-blocking hood make it easy to look through and block out ambient light, allowing you to enjoy astronomical observation in comfort.

Main Features

• With an apparent field of view of 72°, you can enjoy a wider actual field of view at the same magnification, allowing you to enjoy the impressiveness of outer space.
• Rather than focusing on numerical values, the eye relief is designed with performance as the priority, and the lens barrel is designed with ease of use in mind, ensuring a nearly constant distance from the end of the eyepiece to the eyepoint. Furthermore , exit pupil aberrations are effectively eliminated, minimizing blackout and coloration when the eye moves away from the eyepoint, improving usability.
• This advanced optical design combines a wide field of view with a flat image. It is compatible with the brightest F-numbers of the astronomical telescope objective optical system it is paired with. The NAV-5SW in particular is compatible with optical systems up to f/4. It improves the peripheral image without compromising the central image, minimizing field curvature and astigmatism.
• To eliminate stray light that is harmful to observation, light-shielding diaphragms, light-shielding wires, and black paint are used in appropriate locations, and the lens surfaces are multi-coated to reduce harmful reflections and improve transmittance, among other measures.
• The mounting diameter is 31.7mm or 1.25", the standard "American size." It can be used with various telescopes. It also features a parfocal design, with the flange at the focal point. *Please make sure the eyepiece insertion diameter of your telescope is 31.7mm.
• The eyecup rubber that comes into direct contact with the skin is made of skin-friendly silicone rubber, and features an easy-to-grip knurled design reminiscent of Nikkor lenses.
• A silicone rubber light-shielding hood is used to prevent external light disturbances when observing at high magnifications where close contact is not possible, or in places such as parking lots. Unlike the usual "horn-shaped" hood, it has a unique shape that can be used by people who wear glasses, and is flexible enough to reduce the transmission of vibrations. It is detachable and can be removed when not needed. 
• Drip-proof construction with rubber sealing to prevent night dew from seeping in.
• The optional TSA-1 telescope attachment allows for digiscoping. The FSB series compact digital camera bracket allows for collimated photography. It can also be used for lunar and planetary photography, expanding the scope of your photography.
• The innovative eyepiece converter "EiC-16" (sold separately) enhances the performance of NAV-SW eyepieces. The "EiC-16" converts the magnification to 1.6x. Unlike conventional Barlow lenses, the optical design optimized for the NAV-SW series increases magnification without sacrificing sharpness in the centre, further improving image flatness.
• The mounting system is a 31.7mm/1.25" chuck with minimal decentering error.

Specifications

APO140FL F/7 于 2017 年首次亮相，旨在向 TEC 最早的设计之一 APO140ED 致敬，并迅速成为 TEC 最受欢迎的型号。

• APO140FL F/7 采用油隔复消色差三片式物镜，中间元件为萤石 (CaF ₂ )，可实现针对视觉使用和成像优化的色彩校正。这种油隔三片式设计与物镜所有表面的多层涂层相结合，可确保最大程度的透光率。
• 物镜安装在铝制容器内，具有出色的温度调节性能，同时重量轻且坚固。
• 光学组件位于一个轻质铝管中，该铝管的整个内部都采用了防反射涂层和锋利边缘的挡板，并且无需考虑准直——在望远镜离开 TEC 后，无需进行任何调整。
• 此外，干净利落的全白组装彰显了 TEC 一贯的优雅手工品质。这款紧凑而永恒的设计将带来深厚的对比度和丰富自然的色彩。
• 每台 APO140FL F/7 都配备了 Starlight Instruments FTF#3545 Feather Touch 调焦器，该调焦器是与 TEC 合作设计的。这是 Starlight Instruments 最大的旋转调焦器，具有粗调和微调 9:1 行星减速组件。
  • APO140FL F/7 可应要求安装到其他调焦器型号。请联系 TEC 确认所需调焦器是否适合所需 TEC 型号。
• 2 英寸锁定金属夹头对温度波动不敏感，并能以高精度和同心度保持负载。
• 能够容纳多种目镜和支架。

TEC APO140FL F/7 采用经典折射镜设计，设计简洁，不折不扣，让大自然的奇观不言而喻。所有价格和供货情况如有变更，恕不另行通知

推荐配件；

• 精密可调管环
• 9 英寸燕尾板和手柄方便运输，并可与大多数支架无缝贴合。
• 焦距缩减校正器将 F/7 比率转换为 F/6.2，后焦距为 115 毫米。
• TEC运输箱可方便观察地点之间的运输。
• TEC 紧凑型箱，方便提起和运输。
• 10×60 Baader Vario 寻星镜，配有 TEC 寻星镜支架和用于望远镜安装的底座。
• 7×50 Vixen 寻星镜，配有TEC 寻星镜支架和用于望远镜安装的底座。
• Gutekunst 紧凑型大气色散校正器 (ADC)。

测试和质量保证

TEC 望远镜经过严格测试，以确保顶级品质性能。整个玻璃生产过程中都使用牛顿环，然后我们使用干涉仪纠正任何剩余的缺陷。然后对每台望远镜进行严格测试，以达到最佳的斯特列尔比。请放心，您的望远镜已经过优化，光学性能尽可能完美。如果物镜没有达到 Yuri 的期望，望远镜将不会发货。作为一项严格政策，TEC 不会发布望远镜测试报告。

虽然物镜在干涉控制下经过微调以满足最高的光学标准，但物镜和镜筒组件中可能存在外观缺陷。请放心，望远镜中的任何缺陷均已确定不会影响光学性能。