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Bintel Glebe
Usually ready for pickup in 24 hours
Bintel 84 Wentworth park road, Glebe, 2073, NSW
Phone:(02) 9518 7255
Hours:
Monday9:30 am–5:30 pm
Tuesday9:30 am–5:30 pm
Wednesday9:30 am–5:30 pm
Thursday9:30 am–5:30 pm
Friday9:30 am–5:30 pm
Saturday9:30 am–4 pm
SundayClosed
Valentine's day sale 2026
6 products
6 products
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$1,049.00
Sky-Watcher Star Adventurer GTi is user-friendly and provides various combinations to satisfy all your needs for astrophotography, It is a high precision, GOTO fast star finding, stable astrophotography bracket. It is Small and portable.it is the best choice for astronomy enthusiasts to travel, astronomical photography and observation.
The Sky-Watcher Star Adventurer GTi can be attached to standard photographic tripod.
The Best Portable GoTo Telescope Mount
The Star Adventurer GTi is designed for portability, with the mount head weighing just 2.6 kg and the included counterweight system (counterweight + shaft) weighing 2.9 kg. In addition to DC 12v power, the Star Adventurer GTi can run on 8x AA batteries, meaning you can easily power it in the field and leave a clunky power brick behind.
Wireless GoTo Control From Your Phone, Tablet, or Computer
The Star Adventurer GTi can be controlled in a multitude of ways. You can choose to control it wirelessly with the SynScan Pro App available for Android, iOS, or PC. Additionally, if you prefer a classic hand controller, it can be operated on the SynScan hand controller (sold separately). Specifications
All Sky-Watcher products have a 5 year manufacturer warranty.
Power Supply
DC 12V or 8-AA Batteries
Payload Capacity
5kg
Self-weight
2.6kg
Counterweight
2.2kg(1 Incl., 1 Opt.)
Polar Scope
Built-in, Illuminated
Latitude Range
0 to 70 Degree
Connectivity
Hand Controller, USB, Wi-Fi Autoguider, DSLR
Controller
SynScan Pro App (Android/iOS/PC) SynScan Hand Controller (Opt.)
Celestron EdgeHD 9.25 OTA
See the Universe in HD
EdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma; it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view.
True Astrograph Quality
Many optical designs that advertise themselves as "astrographs" actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for some visual observing, stars will appear out of focus at the edge when used with the flat chip sensor of a digital camera. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today.
Improved Performance
Superior edge performance not only creates rounder, more pleasing stars, but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. With Celestron’s StarBright XLT optical coatings on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum.
Mechanical Features
In addition to EdgeHD’s optimized optical design, the telescope tube has been redesigned to make sure you get the most from your optics each and every night.
- Mirror clutches - Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astro-images. Once focused, the flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or on the sensor).
- Tube vents - Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 95-micron micromesh filter guaranteed to let warm air out without letting dust in.
- Fastar versatility - EdgeHD is the most versatile imaging telescope available today. At its native f/10, you can achieve the image scale necessary to capture the smallest of deep sky objects. Add the optional reducer lens—custom-designed for your size EdgeHD tube—and you can increase your field of view without sacrificing optical performance. A Barlow gives you added power for high-resolution planetary, lunar and solar imaging. All EdgeHD optical tubes are Fastar-compatible, allowing the secondary mirror to be removed and replaced with a third party lens accessory for ultra-fast f/2 wide field imaging.
Individually Tested
Every EdgeHD that ships has been tested not only for the surface quality of each optical component, but also with a camera and artificial star to ensure the imaging system meets our rigid quality assurance. This “final acceptance test” confirms the EdgeHD will perform in the field and deliver high-quality astroimages.
Specifications
| Optical Design | EdgeHD |
|---|---|
| Aperture (mm) | 234.95 mm (9.25 in) |
| Focal Length | 2350 mm |
| Focal Ratio | 10 |
| Focal Length of Eyepiece 1 (mm) | 23 mm |
| Magnification of Eyepiece 1 | 102 x |
| Finderscope | 9x50 |
| Star Diagonal | 2" w/ 1.25" adapter |
| Optical Tube | Aluminium |
| Limiting Stellar Magnitude | 14.4 |
| Resolution (Rayleigh) | 0.59 arc seconds |
| Resolution (Dawes) | 0.49 arc seconds |
| Light Gathering Power (Compared to human eye) | 1127 x |
| Secondary Mirror Obstruction | 3.35 in (85 mm) |
| Secondary Mirror Obstruction by Diameter | 36% |
| Secondary Mirror Obstruction by Area | 13% |
| Optical Coatings | StarBright XLT |
| Optical Tube Length | 559 mm |
| Optical Tube Weight | 9.53 kg |
| Dovetail Compatibility | CGE Mount |
The Sky-Watcher HelioFind solar tracking mount is lightweight and ridiculously easy to use. No need to worry about aligning your equipment the night before or early in the morning. Using its patented HelioFind solar finder and built-in GPS, HelioFind automatically levels and calculates the azimuth and altitude of the Sun, all with the single push of a button. Once self-aligned, the mount locates and tracks the Sun for hours at a time. HelioFind is perfect for eclipse chasers, educators who teach science and astronomy during the day, or anyone fascinated with our nearest star.
Tired of wasting half the day not staring into space? Can’t wait until the Sun goes down to start your observing sessions? Need to fulfill those science curriculum standards for your classroom? Already planning your next total solar eclipse road trip? Nothing makes observing our home star as easy and engaging as HelioFind from Sky-Watcher!
You will need a small, dedicated Solar Telescope or small telescope with suitable Solar Filters attached.
Take the Sky-Watcher HelioFind outside on a sunny day, switch it on and it will automatically locate and point towards the Sun and then track it throughout the rest nest of the day. You don't need to align it or carry out any more adjustments
Ideal for observing sunspots, planetary transits, transits of the International or Chinese Space Stations, and solar eclipses with a white light solar filter. Or, attach an H-Alpha solar filter and observe the surface detail of the Sun directly along with tracking the daily changes in stormy prominences, filaments, plages, and even solar flares and coronal mass ejections.
Can be used with any standard photographic tripod (not included)
Perfect platform for Meade Corondo PST or Lunt 40mm, Lunt 50mm H-Alpha scopes.
Sky-Watcher HelioFind Mount is designed for solar observation only.
$7,749.00
Capturing impressive deep-sky astroimages is easier than ever with Celestron’s Rowe-Ackermann Schmidt Astrograph (RASA 11) V2, the perfect companion to today’s top DSLR or astronomical CCD cameras. This fast, wide-field f/2.2 system allows for shorter exposure times compared to traditional f/10 astroimaging, without sacrificing resolution. Because shorter sub-exposure times are possible, your equatorial mount won’t need to accurately track over extended periods. The short focal length also lessens equatorial tracking demands. In many cases, autoguiding will not be required.
RASA 11 V2 builds on the legacy of Celestron’s Schmidt Cameras, which allowed astrophotographers to produce images with much shorter exposure times on film in the 1970s.
Today, with CCD sensor sizes as large as film or larger, the RASA 11 V2 offers a 43.3mm optimized image circle to capture pinpoint stars on the largest imaging chips. Optical performance for huge sensors with diagonals of up to 52mm wide is still excellent.
Combine this large image circle with a focal length of just 620mm and you have an instrument suitable for wide-field imaging, creating huge mosaics of the night sky, surveying, and even comet hunting.
Optical Performance
The RASA 11 V2 features optics with 4-element rare-earth glass for images free of false color and aberrations like coma and field curvature. The optical quality and spot size across the entire image circle are unprecedented for an astrograph in this price range—or even that of a much more expensive instrument. The design also provides minimal vignetting.
Advanced Features
RASA 11 V2 utilizes the Ultra-Stable Focus System (USFS). At the heart of this system is a precision linear ball bearing. The bearing serves to minimize focus shift (unwanted lateral motion of the primary mirror during focusing which causes shifting of the image) and mirror flop (movement of the primary mirror when the telescope is pointing to different positions in the sky). The USFS is also compatible with the optional Celestron Focus Motor (#94155-A). The integrated 12V DC MagLev fan reduces cooldown time and provides optimal airflow through the dust filtered optical tube.
Engineered as a complete astroimaging system, every component of the RASA 11 V2 is optimized for peak performance with DSLR and astronomical CCD cameras. Down to the thickness of the glass used in the included fully-multicoated optical window or optional imaging filter, every component of the system has been taken into careful consideration to work together seamlessly. The Dovetail CGE bars on the top of the optical tube provides a connection for use of optional accessories like a guidescope.
| OPTICAL TUBE INFO: | |
|---|---|
| Optical Design | Rowe-Ackermann Schmidt Astrograph |
| Aperture | 279mm (11") |
| Focal Length | 620mm (24.4") |
| Focal Ratio | f/2.2 |
| Central obstruction diameter | 114mm (4.48") (41% of aperture diameter) |
| Light Gathering Power (Compared to human eye) | 1588x |
| Resolution (Rayleigh) | 0.49 arc seconds |
| Resolution (Dawes) | 0.41 arc seconds |
| Image Circle | 43.3mm (1.7") Ø , 4.0° |
| Useable field | 52mm (2.04") Ø , 4.8° only minimal performance loss at edge of FOV |
| Wavelength range | 400 - 700 nm |
| Spot size | < 4.4 μm RMS across FOV |
| Optical Coatings | StarBright XLT |
| Off-axis Illumination | 83% at 21mm (.82") off-axis |
| Optical Window | 68mm (2.67") Ø |
| Back focus with included camera adapter | 55mm (2.16") |
| Back focus from top of threaded collar | 72.8mm (2.86") |
| Optical Tube | Aluminum |
| Optical Tube Length | 838.2mm (33") |
| Optical Tube Diameter | 330.2mm (13") |
| Focuser | Ultra-Stable Focus System |
| Finderscope | Not included |
| Optical Tube Weight | 43 lbs (19.5 kg) |
| Other Features | Ventilation fan, dual dovetail mounting bars |
| Included items | 42mm (1.65") T-thread camera adapter | 48mm (1.89") camera adapter | Dust cover | Fan battery pack |
| Dovetail | CGE Dovetail Bar |
Introducing the HEM27, iOptron’s revolutionary hybrid harmonic drive mounts. These light weight, high payload tiny titans will deliver an astronomy experience like never before. Imagine a mount head weighing in at 3.7kgs with a payload capability 13.5kgs, without needing a cumbersome counterweight or shaft. Applying iOptron’s multi decade experience creating precision mounts, the HEM27 brings this vision to reality.
Utilizing state of the art harmonic drive technology for the RA movement in tandem with backlash-free DEC worm/belt drive design, the HEM27s deliver unparalleled weight to payload efficiency. Its black anodized all metal CNC machined body is not only appealing to the eye, it’s a rugged platform that will perform at the highest level for many years to come. Unique features such as an electronic friction break and power down memory allow the mount safely stop and resume a GoTo slew or continue tracking even after an abrupt power loss (No need to realign and start from the beginning).
Features
- Advanced harmonic drive technology
- Payload capacity of 13.5 kg with the mount weight of 3.7 kg
- CNC machined and cast metal body
- Unique friction brake to safely stop movement during a planned or unplanned power interruption
- 360 second gear period
- Permanent periodic error correction (PPEC)
- Go2Nova® hand controller with ~212,000 object database
- Cable management system, no hanging exterior cables to moving parts
- Dual saddle (Vixen and Losmandy-D styles)
- Built in zero position search and locator
- Power down position and location memory
- Integrated ST-4 autoguiding port
- Built-in Wi-Fi (via hand controller)
- USB port for firmware upgrade and computer control
- Soft carrying case
Note: Does not include Tripod (available separately)
The night sky, at f/2.2.
The smallest Rowe-Ackermann Schmidt Astrograph ever built. Ultra-fast prime-focus optics, sub-arcsecond resolution and 3.8 kg of grab-and-go portability for serious deep-sky astrophotography, anywhere.
Professional optics. In a body you can carry with one hand.
Patented Rowe-Ackermann Schmidt architecture.
The RASA places the camera at prime focus, the same position used by professional wide-field survey telescopes. No secondary mirror, no Barlow, no lost light. More photons reach your sensor, in less time.
Since RASA technology debuted in 2014, defence contractors, professional researchers and governments have relied on it for space surveillance and satellite tracking. The RASA 6 delivers that same proven design in a portable package.
- Schmidt corrector plate and primary mirror minimise optical aberrations across the field
- Three-element rare-earth glass lens group ensures sharp, flat focus edge-to-edge
- Spot size under 1.5 μm RMS across the full image circle
NGC 6888. The Crescent Nebula.
Captured with the RASA 6 and an astronomical CMOS camera. Short sub-exposures stack into stunning images in a fraction of the time needed by slower instruments.
Four reasons it’s unlike anything else in its class.
Speed, resolution, portability and field of view, all engineered into one compact prime-focus astrograph.
Lightning-fast astrophotography at f/2.2.
The RASA 6’s blazing focal ratio dramatically shortens sub-exposure times. Faint deep-sky objects that would take hours with a typical refractor can be captured in a fraction of that time. Paired with live-stacking software, bright detailed images appear on your screen in just minutes. In many conditions you can image without an autoguider, simplifying your entire setup.
Sub-arcsecond potential.
Despite its compact size the 152 mm aperture delivers a Dawes resolution of 0.76 arc seconds. Pair it with a high-resolution CMOS camera in steady seeing and you will resolve fine structure in galaxies, nebulae and star clusters that smaller instruments cannot touch. The flat field means stars stay sharp from the centre all the way to the corner of the sensor.
Grab-and-go, genuinely.
At 3.8 kg the RASA 6 is light enough to carry with one hand and fits in a bag alongside your mount. The CG-5 dovetail means it drops straight onto most mid-range tracking mounts without adapters. Chase dark skies without compromising on optical performance. This is the astrograph you will actually take with you.
Wide field without sacrifice.
The RASA 6 is designed for sensors up to 22 mm diagonal, delivering a useable field of 3.76°. Wide enough to frame the Orion Nebula, the Pleiades and large emission nebulae in a single shot. Off-axis illumination of 91% at 8 mm means the field stays bright from edge to edge, reducing processing time on flats and vignette correction.
StarBright XLT. Maximum light throughput.
Every refractive and reflective surface is treated with Celestron’s proprietary StarBright XLT multi-layer coating. The result is exceptional light transmission and superior field illumination across the full wavelength range from 400 to 700 nm.
The RASA design outperforms a Schmidt-Cassegrain in Fastar-style configuration for field illumination. Less vignette, less processing, more imaging.
M42. The Orion Nebula.
IMX183C colour CMOS camera. 60 × 2 min exposures plus 20 × 15 sec exposures for the bright core. The wide field and fast optics of the RASA 6 capture the full extent of the nebula in a single frame.
Everything the modern astroimager needs, integrated.
A filter drawer, a cooling fan, a camera adapter and a CG-5 dovetail. Ready to image, straight out of the box.
1.25″ and 2″ filters. Without slowing you down.
The built-in filter drawer accepts both 1.25″ and 2″ filters. A removable 2″ clear optical window ships as standard. Unlike many fast astrographs, swapping in a filter adds no extra glass to the optical path, so f/2.2 performance is fully preserved.
Thermal equilibrium, fast.
The integrated 12V DC MagLev fan pulls air through mesh vents to rapidly cool the optical system to ambient temperature. Sharper stars and better images from the moment you start. The fan battery pack is included.
Plug a CMOS camera straight in.
The included M42 T-thread camera adapter attaches most popular astronomical CMOS cameras directly to the RASA 6 without extension tubes. The 42 mm clear aperture comfortably accommodates sensors up to 22 mm diagonal. Back focus with the included adapter is 17.5 mm.
Mount-ready, no adapters.
The CG-5 dovetail bar is compatible with a wide range of tracking mounts straight out of the box. No adapters, no Vixen-to-Losmandy conversions. Ready to image as soon as you saddle up. For maximum performance, add the optional Celestron Focus Motor for electronic focus control.
Results from the RASA 6.
Sample images taken with the RASA 6 and an IMX183C colour CMOS camera at f/2.2.
Highlights.
Everything that makes the RASA 6 the most portable serious astrograph in its class.
152 mm (5.98″) aperture, 335 mm focal length, f/2.2 prime focus
Patented Rowe-Ackermann Schmidt prime-focus astrograph optical design
StarBright XLT multi-layer coatings on every refractive and reflective surface
91% off-axis illumination at 8 mm and 472× light-gathering vs the eye
Useable field of 3.76° for sensors up to 22 mm diagonal
Built-in 1.25″ / 2″ filter drawer with included clear optical window
Integrated 12 V DC MagLev cooling fan with battery pack
3.8 kg optical tube with CG-5 dovetail for fast mount setup
Celestron RASA 6.
Complete technical data for your imaging setup planning.
| Optical Tube | |
| Optical design | Rowe-Ackermann Schmidt Astrograph |
| Aperture | 152 mm (5.98″) |
| Focal length | 335 mm (13.18″) |
| Focal ratio | f/2.2 |
| Optical coatings | StarBright XLT (all refractive and reflective surfaces) |
| Tube material | Aluminium |
| Tube length | 609.6 mm (24″) |
| Tube diameter | 177.8 mm (7″) |
| Weight | 3.8 kg (8.4 lb) |
| Dovetail | CG-5 dovetail bar |
| Focuser | Standard Schmidt-Cassegrain focuser |
| Optical Performance | |
| Central obstruction | 77 mm (3.03″) - 46% of aperture diameter |
| Light-gathering power | 472× vs the human eye |
| Resolution (Rayleigh) | 0.91 arc seconds |
| Resolution (Dawes) | 0.76 arc seconds |
| Spot size | < 1.5 μm RMS across the full image circle |
| Off-axis illumination | 91% at 8 mm (0.31″) off-axis |
| Wavelength range | 400–700 nm |
| Field of View & Camera Interface | |
| Image circle | 16 mm (0.63″) Ø, 2.74° |
| Useable field | 22 mm (0.86″) Ø, 3.76° (minimal performance loss at edge) |
| Camera mounting threads | M42 |
| Back focus (with adapter) | 17.5 mm (0.69″) |
| Filter System | |
| Filter drawer | Accepts 2″ format filters, includes 1.25″ adapter |
| Clear filter included | 2″ AR-coated optical window, 2 mm glass |
| Cooling & Electronics | |
| Cooling fan | 12 V DC MagLev |
| Fan power | Fan battery pack (included) |
| In the Box | |
| Included items | M42 (42 mm T-thread) camera adapter, fan battery pack, filter drawer with 2″ clear filter |
Professional optics. Portable by design.
The same prime-focus optical technology trusted by defence contractors and professional researchers, now in a grab-and-go package built for serious Australian astrophotographers. Backed by Bintel’s 40 years of expert optics support.
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