Losmandy DVDWS Counterweight 2-5lb

Dovetail adapter with a 50mm long threaded stainless steel shaft and 2.5 pound weight.

Mounts to D series dovetail plates, is used for the balancing of a fork mounted telescope.

Weight 2.72kg total.

Part #: DVDWS

Losmandy DVCM Camera Mount

New from Losmandy - suits both V and D style plates!

Very rigid camera mount.

- One axis with 360° camera rotation
- Dovetail mounted, no tools needed.

Weight: 400g.
Height. from top of dovetail plate to top of camera mount:
D plates = 47mm (1.85")
V plates = 40mm (1.55")

Part #: DVCM

The new ZWO LRGB Filters are designed to approximately equalize the flux of ASI1600 mono sensor

Better transmission, Better coating, Better color separation

Technical Parameter:

Name: ZWO New LRGB Filters Optimized for ASI1600(4 filters)

Size: 1.25″

Thickness: 5.5mm+2.5mm(thread)

Thread: M28.5*0.6

the RGB color combine weights will be approximately 1:1:1

• Fine-optically polished to ensure accurate 1/4 wavefront
• more than 92% transmission at passband
• Infrared wavelength 700-1100nm cut-off
• Precision off-band blocking
• Multi-layers anti-reflection coating
• Small spectral “gap” to minimize effect of light pollution
• More parfocal – thickness 1.9+/-0.03 mm

here is the the transmission curve

Tele Vue's Delos 10mm is a short to medium focal length eyepiece that will deliver amazing detail. Importantly though it still achieves a generous 20mm eye-relief and wide 72° apparent field of view. Amazing in well corrected refractors with short to medium focal lengths. The Delos 10mm is suitable for any focal length telescope. Some of the shorter focal length Delos eyepieces may provide too much power in long focal length Cassegrains. For example in an 8" f/10 telescope the 10mm Delos provides 200x magnification with eye-relief galore!

There is a good chance the TeleVue Delos will be seen as the ultimate combination of performance, viewing comfort and price. If you've been keeping a spot in your case for an affordable, premium eyepiece, you should consider a Delos - you won't be disappointed! Lessons learned from the tremendously successful Ethos series were applied to develop this long eye-relief, 72° apparent field of view eyepiece line.

The Delos 10mm for a standard 1.25" barrel diameter making it suitable for almost any telescope or even bino-viewers!

Tele Vue Delos 10mm - Specifications

• Model # EDL-10.0
• Focal Length 10mm
• Barrel Size 1.25"
• Apparent Field of View 72°
• Eye Relief 20mm
• Weight 408g
• Field Stop 12.7mm

Background:

In 2011 Tele Vue introduced the Delos, mid-to-short focal length line of 20mm eye-relief, 72° apparent field of view eyepieces. Every optical, mechanical, and ergonomic aspect was rethought to achieve reference-standard performance for any visual application.

The Delos was conceived as a narrower field Ethos. Reducing the field to 72° allowed freedom to increase eye-relief, while controlling pupil aberrations, all without making the eyepiece too large. With Ethos performance standards as benchmarks, the Delos design achieves full field sharpness, virtually perfect f θ (theta) distortion mapping, and color neutrality. Image fidelity is maximized utilizing glass matched multicoatings and anti-reflection surfaces throughout the eyepiece.

Contrast is further enhanced with a new, continuously adjustable height eyeguard system that can be locked in any position. Since the Delos eye-lens measures a quite large 35mm in diameter, preventing stray light from reflecting off the first surface and extraneous light from entering your eye pays off in a nice increase in perceived contrast. The eyeguard's sliding action allows for positioning the soft rubber eyeguard at the ideal height to suit the observer's preference. Indicator marks on the eyepiece body are handy reference guides for setting your perfect position. The eye-guard can also rotate for Dioptrx users.

Awards - Delos 6mm and 10mm

Reviews

Sky & Telescope Hot New Product for 2012 Award

Review of the 6mm & 10mm Delos from Astronomy Magazine, December 2011

Excerpts from Sky & Telescope, June 2011, review of Delos eyepieces:

WHAT WE LIKE:

Essentially perfect optics
"Immersive" observation experience

WHAT WE DON'T LIKE:

I spent several nights viewing the Moon, Saturn, stars and nebulae with a variety of telescopes … .

The Delos eyepieces are "easy to look through … . They have flat fields, delivering absolute pinpoint stars from edge to edge with no hint of color aberration. The view, especially during the daytime, is very pure with no noticeable color tint. And there wasn't a hint of ghosts or reflections, even with the brightest stars".

"What caught me a bit off guard, however, was something that's best described as the observing experience. It was distinctly pleasurable."

"I have the sensation of looking out of a circular window rather than into an eyepiece."

— di Cicco, Dennis. "Tele Vue's New Delos Eyepieces". Sky & Telescope (June 2011). p. 58, 59.

The PROSTAFF P7 8 x 30 binoculars provide a wide apparent field of view 62.6 ̊ for 8 x 30 that offers spectacular viewing, and employ a diopter adjustment ring locking system to prevent unintentional rotation.
Multilayer coating is applied to all lenses and prisms. Dielectric high-reflective multilayer prism coating and phase correction coatings are applied to the roof prisms. All of this effectively combines to deliver a bright field of view plus natural colour fidelity. Oil and water-repellent coating applied to the objective lens and eyepieces allows smudges like finger-prints to be easily wiped off.
Nikon PROSTAFF P7 8 x 30 binoculars are ideal for all kinds of outdoor activities, including bird- and nature-watching, sports events and hiking.

Key Features
• Wide apparent field of view 62.6° for 8 x 30
• Phase-correction-coated roof prisms for high resolution.
• All lenses and prisms are multilayer-coated for brighter images.
• Oil and water-repellent coating applied to the objective lens and eyepieces allows smudges like fingerprints to be
easily wiped off.
• Long eye relief design ensures a clear field of view, even for eyeglass wearers.
• Diopter adjustment ring locking system prevents unintentional rotation.
• Lead and arsenic-free glass is used for all lenses and prisms.
• Turn-and-slide rubber eye cups with multi-click facilitate easy positioning of eyes at the correct eyepoint.
• Waterproof (up to 1m for 10 minutes) and fog-free with O-ring seals and nitrogen gas.
• Rubber armoring for shock resistance and a firm, comfortable grip.
• Lightweight body uses fiberglass-reinforced polycarbonate resin.

SKU: BAA920SA

Farpoint Magnetic Bag Weight (1.5lb)

Often, if you have many accessories mounted, you need counterweights to balance the OTA of your Dobsonian telescope.

Farpoint’s magnetic bag weight (1.5lb) sticks securely to the steel OTA of many solid tube Dobsonians and is perfect for making fine balance adjustments.

The Cordura bag contains 1.5 pounds of lead shot heat-sealed in plastic. The extra strong Neodymium magnets allow you to place the weight exactly where you need it to perfectly balance your Dobsonian.

If you need more weight, you can add Farpoint’s FZ300 and FP315 stainless steel counterweights. But with or without additional steel weights, you will find that the FBW1.5 magnetic bag weight is perfect for making fine balance adjustments.

When you swap the eyepiece you are using for an eyepiece of different weight, just slide the FBW1.5 up or down on your OTA to restore your perfect balance!

SKU: FBW15

The most user-friendly telescope ever
Celestron engineers designed NexStar Evolution 5 based on years of customer feedback. It offers many thoughtful design features that combine to provide you the best possible experience out under the stars.

Forget about batteries or an external power supply. For the first time ever on a consumer telescope, NexStar Evolution 5 includes its own built-in battery. With this ultra-long life lithium-iron phosphate battery, you’ll be able to enjoy stargazing marathons up to 10 hours on a single charge. You can even use NexStar Evolution’s 5 USB charge port to top off the other devices in your life that need to stay powered on during an observing session. An intelligent power management system senses when battery levels are low and goes into power-saving mode to keep your telescope running for as long as possible.

Setting up your NexStar Evolution 5 is quick and painless with large, ergonomic handles. The all-metal tripod features a metal accessory tray with indentations for storing and carrying the tripod. During setup, leg etchings help you achieve a level, uniform height for your telescope. Manual clutches in both altitude and azimuth offer greater flexibility to manually point the telescope when powered off. Store up to 7 eyepieces in 2 accessory trays, one with an adjustable red LED illuminator.

Superior tracking fit for astroimaging
If you’re interested in astroimaging, the 5-inch NexStar Evolution 5 is an excellent, affordable way to get started. It’s the only fork-mounted telescope in its price range that offers brass worm gears, along with improved motors. NexStar Evolution’s tracking accuracy is so impressive, you can capture images of deep-sky objects like the Orion Nebula by simply attaching your DSLR camera. As you progress in the hobby of astroimaging, you can add our HD Pro Wedge to achieve longer exposures for more detailed astrophotos. NexStar Evolution compatible with the wedge when used with the CPC tripod (sold separately).

Of course, the Schmidt-Cassegrain optical system offers bright, sharp views with StarBright XLT optical coatings—a great choice for visual observers and budding astroimagers alike.

NexStar Evolution is equipped with 4 auxiliary ports--2 on top of the fork and 2 on the bottom. A classic NexStar+ hand control is included, but is not necessary when using NexStar Evolution with the mobile app. The telescope also includes a StarPointer finderscope, two 1.25” Plossl eyepieces, a 1.25” star diagonal, and an AC adapter.

"5-star overall rating"
-BBC Sky at Night Magazine

The NexStar Evolution is the first Schmidt-Cassegrain telescope with integrated WiFi. Leave your hand control behind and slew to all the best celestial objects with a tap of your smartphone or tablet. Connect your device to NexStar Evolution’s built-in wireless network, and explore the universe with the Celestron mobile app for iOS and Android.

Use the planetarium interface to view the night sky in real time or display a list of celestial objects currently visible based on your time and location. Our proprietary SkyAlign alignment procedure is built right into the Celestron mobile app, so you’re ready to observe within minutes.

Review This is a very good medium power eyepiece for lunar observing, resolving globular clusters, picking up detail in emission and reflection nebulas, etc.

The rubber grip give sure grip and makes it comfortable to use in cold weather.

The comfortable 14mm eye-relief is suitable for those wearing glasses .

Like all TeleVue Plossls it has filter threads to fit your filters and blackened lens edges as well as being parfocal.

Specifications 

The Astrozap AZ-153 Flexi-Shield® is a flexible dew shield engineered for the Celestron 8" Schmidt-Cassegrain and RASA 8. Upper and lower dovetail notches ensure it fits neatly on current CGX, CGEM, Advanced VX and NexStar models without fouling the rails.

Why a dew shield matters on a C8

The C8 is one of the most popular imaging and visual scopes in Australia, but the exposed corrector attracts dew quickly on clear nights. A passive Flexi-Shield dramatically delays dew formation, protects against stray light, and improves contrast on planets, the Moon and deep-sky targets.

Features

• Twin dovetail notches (upper and lower) for broad compatibility
• Felt-lined interior absorbs moisture and reduces glare
• Durable ABS polymer build
• Padded VELCRO® Brand closure for a secure, finish-safe fit
• Rolls up flat for travel

Compatible Celestron 8" telescopes

• CGX 800 SCT and CGX 800 EdgeHD
• CGEM II 800 SCT and CGEM II 800 EdgeHD
• Advanced VX 8" SCT and Advanced VX 8" EdgeHD
• NexStar 8SE
• NexStar Evolution 8
• RASA 8

Proudly made in the USA.

The Luminos series eyepieces offer a wide 82º field of view in both high power and low power models, allowing you to make the most of your telescope, whether you own a short, fast refractor or a Celestron EdgeHD telescope. The optical set consists of six or seven elements (depending on the model) and is fully multi-coated for crisp, sharp views. All six Luminos eyepieces are parfocal, which means you can switch out eyepieces during observing sessions with little or no additional focusing required.

The Luminos eyepiece body is made of polished and anodized aluminum. A rubber grip runs around the equator of the eyepiece, giving you a secure grip and an easy method for raising and lowering the retractable eyecup. Simply twist the rubber grip to adjust the height of the eyecup. The insert barrel is threaded to accept filters.

The PROSTAFF P7 10 x 30 binoculars provide a wide apparent field of view 59.9 ̊ for 10 x 30 that offers spectacular viewing, and employ a diopter adjustment ring locking system to prevent unintentional rotation.
Multilayer coating is applied to all lenses and prisms. Dielectric high-reflective multilayer prism coating and phase correction coatings are applied to the roof prisms. All of this effectively combines to deliver a bright field of view plus natural colour fidelity. Oil and water-repellent coating applied to the objective lens and eyepieces allows smudges like finger-prints to be easily wiped off.
Nikon PROSTAFF P7 10 x 30 binoculars are ideal for all kinds of outdoor activities, including bird- and nature-watching, sports
events and hiking.

Key Features
• Wide apparent field of view 59.9° for 10 x 30
• Phase-correction-coated roof prisms for high resolution.
• All lenses and prisms are multilayer-coated for brighter images.
• Oil and water-repellent coating applied to the objective lens and eyepieces allows smudges like fingerprints to be
easily wiped off.
• Long eye relief design ensures a clear field of view, even for eyeglass wearers.
• Diopter adjustment ring locking system prevents unintentional rotation.
• Lead and arsenic-free glass is used for all lenses and prisms.
• Turn-and-slide rubber eye cups with multi-click facilitate easy positioning of eyes at the correct eyepoint.
• Waterproof (up to 1m for 10 minutes) and fog-free with O-ring seals and nitrogen gas.
• Rubber armoring for shock resistance and a firm, comfortable grip.
• Lightweight body uses fiberglass-reinforced polycarbonate resin.

SKU: BAA921SA

Celestron Evolution 8 HD with StarSense

The NexStar Evolution keeps evolving. Evolution 8 HD pairs Celestron's best optics with their best technology to make an incredibly versatile and portable telescope system. Now, enjoy EdgeHD 8” optics and StarSense AutoAlign on the renowned Evolution mount, all controlled from your favourite tablet or phone.

With the innovative NexStar Evolution 8 HD, enjoy EdgeHD optics and controlling the telescope wirelessly with the SkyPortal app. Now equipped with StarSense AutoAlign, go-to alignment is done automatically once you tap “Connect and Align”! Observing, astro-imaging, and automatic wireless alignment are all bundled into a compact yet mechanically solid setup. This the most capable, easy-to-use and ready-for-action system we’ve ever offered.

When NexStar Evolution was introduced, it paired two of Celestron’s most acclaimed innovations, Schmidt-Cassegrain telescopes and computerized go-to optics, in a compact single fork arm mount. The technology and optics continued to evolve over the years. On the technology side, we added StarSense AutoAlign for our go-to telescopes, as well as Wi-Fi telescope control with over our new SkyPortal app. With optics, EdgeHD flat-field and coma-free astro-imaging systems were made to accommodate modern imaging with cameras of all types, especially larger format CCD and DSLR cameras. Now all of these innovations have come together in one telescope package: The NexStar Evolution 8HD. The NexStar Evolution 8HD covers all bases for compact and easy to use, and is perfectly capable for any observing to astro-imaging pursuit.

STARSENSE AUTOALIGN IN SKYPORTAL APP

Tired of the tedious alignment procedures required by most modern computerised telescopes? Come to the future with Celestron's StarSense - your telescope will align itself to the heavens for you with the tap of a button on your smartphone, and in a few minutes will be ready to show you the universe!

StarSense not only automatically aligns itself from your smart device, it also has advanced mount modelling, allowing you enter up to 10 alignment points for the most precision pointing accuracy possible. Even the most advanced telescope users will love using StarSense AutoAlign through the app. This affordable accessory replaces the expensive software usually used for advanced mount modelling. With this built-in mount modelling, you'll get superior pointing accuracy from horizon to horizon. When your alignment needs to be perfect, add up to 10 additional calibration stars to achieve a new level of accuracy, great for locating objects in the camera’s field of view for astroimaging.

SUPERIOR FIT FOR ASTROIMAGING AND VISUAL ASTRONOMY

If you’re interested in astroimaging, the 8-inch NexStar Evolution HD is an excellent way to jump in.. It’s the only fork-mounted telescope in its price range that offers brass worm gears, along with improved motors. Tracking is great, and so too is the flat-field, coma-free EdgeHD optical system.You can capture images of deep-sky objects like the Orion Nebula by simply attaching your DSLR camera. As you progress in the hobby of astroimaging, you can add a NexStar Evolution Wedge to achieve longer exposures for more detailed astrophotos.

Of course, the EdgeHD optical system offers bright, sharp views with StarBright XLT optical coatings—a great choice for visual observers and budding astroimagers alike.

NexStar Evolution is equipped with 4 auxiliary ports--2 on top of the fork and 2 on the bottom. A StarSense hand control is still included, but is not necessary when using NexStar Evolution with the app. The telescope also includes a StarPointer Pro finderscope, two 1.25” Plossl eyepieces, a 1.25” star diagonal, and an international AC adapter.

FREE SKYPORTAL APP

Access the sky and control your telescope from an interactive planetarium on your smart device – provides the best star gazing experience for you and your friends and family – know when Jupiter’s Great Red Spot will be visible, including shadow transits, planetary occultations, conjunctions, or pick the best deep sky objects to view such as galaxies and nebulae. Learn about these objects with informative backstories and beautiful image galleries, then see them for yourself through the telescope!

Controls everything, including StarSense. Tap Connect and Align and let StarSense automatically align the telescope for you. Upgradable to SkySafari Plus and SkySafari Pro.

Celestron has reinvented the Dobsonian telescope with StarSense Explorer—the first Dobsonian that uses your smartphone to analyze the night sky and calculate its position in real-time. This large-aperture Celestron StarSense Explorer is ideal for serious beginners, thanks to the app's user-friendly interface and detailed tutorials. It's like having your own personal tour guide of the night sky. The large aperture will ensure that you won’t outgrow the telescope as you continue on in your astronomical adventures.

Dock, Launch, Explore

Leave complicated star charts, imprecise planetarium apps, and computerized mounts behind. With StarSense Explorer, locating objects has never been easier, faster, or more accurate. Within minutes of setting up the telescope, you'll be navigating the sky with confidence. Simply place your phone in the unique StarSense dock and launch the StarSense Explorer app.

After aligning your phone to the telescope's optics (a quick and easy procedure), StarSense Explorer generates a list of celestial objects currently visible. Make your selection and arrows appear on-screen, guiding you as you move the telescope. When the object is ready to view in the eyepiece, the bullseye turns green. As you observe, listen to hundreds of audio descriptions and view detailed information about thousands of objects within the app’s robust database.

High-Quality Altazimuth Base

An ultra-stable Dobsonian base provides a sturdy foundation for StarSense Explorer. It features large diameter altitude bearings with variable tensioning, Teflon azimuth bearings, and braces on the side panels for extra stability (unlike most 8” Dobsonian bases). The altitude bearings provide a smooth up-and-down motion while the integrated altitude "brake" system allows you to adjust the tension along the altitude axis for smoothest motion even with slight imbalances. The panning knob on the telescope tube provides an ergonomic grip so you can precisely point the telescope without introducing heat from your hands into the optical system. As celestial objects appear to drift across the night sky, you'll be able to easily follow them with minor adjustments to the telescope’s position.

Dazzling Views with High-Quality Optics

With a large 8" Newtonian reflector optical tube, this telescope has enough light-gathering ability to bring out impressive detail in celestial objects while remaining remarkably portable. You can expect sharp, bright views of Jupiter's four Galilean moons, its cloud bands and Great Red Spot, the rings of Saturn, the gaseous glow of the Orion Nebula, dust lanes in the Lagoon Nebula, and our neighbor galaxy, Andromeda. Compared to the StarSense Explorer DX 130 AZ, the 8" Dobsonian has 240+% more light gathering area, providing better views of faint objects.

All mirror surfaces are coated with our XLT optical coatings to visibly increase contrast and light throughput for brighter views. With XLT, you'll be able to discern subtle details while viewing the Moon and planets, as well as faint galaxies and nebulae. The mirrors are made of low-expansion optical glass, which helps ensure the best images under changing environmental conditions.

This telescope also comes with a high-quality 2” Crayford focuser. The Crayford design provides precise and smooth movements without focus shifting. It also includes a 2” to 1.25” adapter and a 2” extension tube, so you can use virtually any 1.25” or 2” telescope eyepiece with your StarSense Explorer Dobsonian. The focuser also features a thumbscrew so you can lock in the sharpest focus.

Perfect for the City or Dark Sky Sites

Even if you live in a light-polluted city location, the Celestron StarSense Explorer 8” Dobsonian is advanced enough to easily pick out Jupiter, Saturn, open star clusters like the Pleiades, double stars like Alberio, the Orion Nebula, Andromeda Galaxy, and more of the best and brightest celestial objects.

But if you can take the telescope to an even slightly darker location, more objects will become visible. With this 8" Dobsonian and relatively dark skies, hundreds of fascinating objects are well within your reach.

Transporting your StarSense Explorer Dobsonian is easy thanks to the ergonomic carry handles located at the balance point of the tube and base. Dust covers are also included for the front of the tube and the focuser.

Smartphone Compatibility

Celestron StarSense Explorer works with most modern smartphones, including iPhone 6 and up, and most devices running Android 7.1.2 or later manufactured since 2016. For a complete compatibility list, click here.

Patented StarSense Sky Recognition Technology

StarSense Explorer uses patented technology and your smartphone to determine exactly where the telescope is pointed in the night sky. A Lost in Space Algorithm (LISA), like the ones satellites use in orbit to correctly orient themselves, helps the app match star patterns it detects overhead to its internal database.

While other astronomy apps may claim that they can help you find objects, they rely exclusively on the phone's gyros and accelerometers, which aren't as accurate as LISA technology. No other app can accurately tell you when your target is visible in the eyepiece.

Enhance Your Setup

Keep your phone charged all night while exploring with your StarSense Explorer by adding the PowerTank Glow 5000 to your must-have accessories (sold separately). This 2-in-1 accessory was made with the StarSense Explorer Dobs in mind, it has a red flashlight PLUS a USB power bank for charging mobile devices in the field. Connect the PowerTank Glow 5000 to the two posts at the front of the StarSense Explorer dock with the included bands so it is held in a convenient location for charging your smartphone while in use.

Tele Vue Ethos 13mm Specifications

Introduced at the 2007 Northeast Astronomy Forum, Tele Vue once again broadened the amateur astronomer's perspective on the universe with: 100° of pure Tele Vue quality. The field area of this new eyepiece is more than 50% larger than an 82° field. The Tele Vue Ethos is essentially multiple eyepieces, delivering the true field size of a longer focal length, narrower apparent field eyepiece with the benefits of higher power and darker sky background.

We invited NEAF attendees to take a look and see the universe the way we think it was meant to be experienced, with a field of view incredibly wide and sharp! We were very pleased indeed by the response and validation of our design goals.

Backordered currently 3-4 Weeks

Related Links

•Eyepiece Distortion
Technical reference on rectilinear and angular magnification distortion.

•Majesty Factor
Compare eyepieces by quantifying contrast, power, and apparent field.

Nagler Type 6

ASI183MM Pro

Introducing the ASI183 camera series, the most sensitive cameras in ZWO history. Peak Q.E. of the mono sensor reaches 84%!

Using the Sony IMX183CLK-J Mono Sensor with high resolution 2.4 μm pixels, it includes a 256MB DDR3 memory buffer.

 ASI183 QE peak reaches a remarkable 84%. In Ha channel, QE is still over 60%.

DDR Memory Buffer

The ASI183 Pro camera includes a 256MB DDR3 memory buffer to help improve data transfer reliability. Additionally, the use of a memory buffer minimizes amp-glow, which is caused by the slow transfer speeds when the camera is used with a USB 2.0 port.

DDR memory buffer is the main difference between ASI “Cool” and “Pro” cameras.

Astrophotography Performance

The ASI183 cameras has a very large full well capacity（15000e） for such small pixel size, 1.6e read noise @ 30DB, and 12stops dynamic range @ Gain=0. The ASI183 cameras also utilize firmware features to minimize amplifier glow for maximum performance in astrophotography.

Reliable Mechanics

ASI183 Pro has same mechanics as ASI1600 Pro. There are four screws that seal the sensor chamber. Our camera design has been extensively tested and is very stable.

Even when used in higher humidity environments, ASI183 Pro will still work fine without dew problems.

High Speed

Fast FPS can be used in solar and lunar imaging, as well as for live viewing/EAA.The high speed readout may also be used for real-time focusing, true lucky imaging of double stars and other small objects, planetary imaging of the major planets in the solar system, and much more.

10Bit ADC
5496×3672 19fps
3840×2160 41.04fps
1920×1080 80.10fps
1280×720 117.30fps
12bit ADC
5496×3672 19fps
3840×2160 36.12fps
1920×1080 70.48fps
1280×720 103.23fps

High QE

Sony’s back-illuminated Exmor R technology, giving it excellent Deep Sky performance. ASI183 QE peak reaches a remarkable 84%. In Ha channel, QE is still over 60%.

Having high QE means more of the light that enters your telescope and reaches the sensor is actually used. With 84% peak Q.E. and no less than ~50% within the visible spectrum, the ASI183 will utilize a high percentage of the light that reaches it, improving your signal quality.

Dark Current

The dark current of the ASI183 is extremely low, based on our test results.

USB 3.0 Port & USB2.0 HUB

USB 3.0 Port: Provide 5Gb bandwidth to make it possible for ASI183 Pro to run at 19 fps (12bit, normal mode) or 19 fps (10bit, high speed mode) at full resolution(20.18Mega).

Recommended cooler power supply: 12V @ 3-5A (or more) DC adapter (2.1×5.5mm, center pole positive). Also suitable: DC battery with 9-15V.

Using a battery with 9-15V is also suitable for the cooler power supply.

USB 2.0 HUB: can connect with various accessories, such as filter wheel, guide camera and electronic focuser, so you can better manage your cables. The ASI183 Pro includes two short 0.5m USB 2.0 cables. The integrated USB 2.0 hub is powered by the external power source if you connect one.

Cooling System

The ASI183 Pro has a 2-stage TEC cooling system that enables deep cooling (40°C-45°C below ambient). The cooler requires an external power supply, which is not included with the camera.

Connecting Drawing

1. M43-T2 adapter

2. EOS-T2 adapter

3. 2”Filter (optional)

4. 1.25” T-Mount

5. 1.25” Filter (optional)

6. M42-1.25” Filter (optional)

7. T2 extender 11mm

8. M42-M48 extender 16.5mm

9. T2-T2 adapter

10. EFW mini

11. EOS adapter for EFW

Mechanical Drawing

What is in the box?

ASI183 Pro box includes all necessary cables, adapters, and manuals.

Camera Technical Details

Cooling & Power

Environmental Conditions

Max FPS at Full Resolution (10-bit ADC)

Max FPS at Full Resolution (12-bit ADC)

For a pair of binoculars that's great for both astronomy and long-distance terrestrial observation, you'll want the saxon 20x80 Night Sky Waterproof Binoculars.

Images will come up bright, clear and crisp with these binoculars' large, oversized 80mm objective lens with anti-reflection coatings, BaK-4 prism and fully multi-coated lens.

To start using your binoculars, simply mount them on a tripod using the built-in tripod mount and centre stabiliser rod. Waterproof and fog proof, these lightweight, long-eye relief binoculars promises a comfortable viewing experience wherever you go.

BINTEL is proud to announce a new range of high quality, value for money telescope eyepieces optimised for planetary and close up viewing of deep sky objects.

What sets the Bintel Premium Long Eye Relief range apart from just every other mid-priced short to medium length eyepiece is their remarkably flat field design, edge-to-edge sharpness and superb mechanical construction.

You’ll notice the difference in crispness when exploring the details on the surface of the Moon, gazing at the rings of Saturn or peering into the heart of a globular like Omega Centauri. Views will be razor sharp all the way out to the edge of their 55 degree field of view thanks to a modern multi-element design.

The 3mm size will let you use high magnification for seeing fine details when conditions are ideal.

Over 20mm of eye relief - the distance you can observe back from the eyepiece and still take in the entire field of view - makes for comfortable viewing with or without eye glasses.

The Bintel Premium Long Eye Relief Eyepieces are the perfect first upgrade from the standard eyepieces that come with your telescope.

The Saxon 10" DeepSky (254/1200）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 254mm and a focal length of 1200mm in a 10" 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 10" 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 Swarovski BR Balance Rail is designed to be used with the PTH gimbal tripod head. The BR has an adjustable rear support pad for a perfect fit with the ATX, STX, or BTX ocular modules regardless of which objective module is in use. A must if using larger ATX STX and all BTX scopes. Lets you achieve perfect balance when using TLS APO and Camera when Digiscoping. Compatible with Arca Swiss heads

STABLE FITTING

Innovative and perfectly tailored accessories not only enhance the capabilities and functionality of your SWAROVSKI OPTIK spotting scope, they also help to protect it. User-oriented concepts and design both play an important role.

BR balance rail

The Swarovski BR balance rail perfectly combines with all spotting scopes and can be adjusted individually. Two support points ensure complete balance at perfect stability.

This Item is not able to be exported to New Zealand

Did you know one of the best ways to stare up at the Universe is through a pair of binoculars, like these Sky-Watcher 15×70 Astro Binoculars.

They're not just for astronomical viewing but also for high powered terrestrial observation, and are perfect for bird watching, whale watching, and marine viewing. With a powerful 15x magnification and a generous 70mm aperture, you’ll be able to observe detailed and bright images, whether you are gazing at distant celestial objects or wildlife from afar.

For bird watchers, the large aperture will allow you to capture more light, revealing intricate plumage details and colors even in low light conditions. Whale watchers and marine enthusiasts will appreciate the wide field of view that will enable you to observe large areas of the ocean, making it easier to spot marine life from a distance.

The Sky-Watcher 15×70 Astro Binoculars include a handy carry bag, making them easy to transport and store safely when not in use.

Designed for both beginners and experienced observers, these binoculars offer a versatile and portable option for all your outdoor adventures. Whether you’re exploring the night sky or the natural world around you, the Sky-Watcher 15×70 Astro Binoculars will provide you with bright, clear, and detailed images that will inspire awe and wonder.

Specifications:

Losmandy VUP14 is designed to work with any mount that uses the 46mm Vixen Style Saddle.

These dovetail plates and accessories are the same dimensions as the Vixen type dovetail. Vixen style dovetail bars may be mounted to the top and bottom of tube assembly for mounting of all V series accessories, making it possible to use both sides of tube for equipment. The unthreaded holes and slots are countersunk on the underside to hold socket head machine screws. There are 24 holes and 4 slots so there's nothing that cannot be mounted to these dovetails.

The dovetail plates, like all accessories in the Losmandy line, are machined for lightness and rigidity from aluminium stock, then black anodized for a tough, corrosion free surface.

The RC II series of binoculars are extremely compact and lightweight, featuring a sophisticated design. These binoculars place emphasis on portability and can be folded for easy carrying. A range of colour variations is available to suit your personal preference.

They might be small - but are powerful for their size and offer remarkably clear views.

• 8x magnification
• Waterproof
• Foldable and ultra-compact
• Stylish outdoor design
• Rubber coated for convenient grip
• Multi-coated lenses for maximum brightness and contrast
• Convenient centre-focus knob for easy focusing
• Fully multi-coated optics
• Nitrogen‑filled body for waterproof/fogproof/dirtproof performance
• Built-in dioptric correction adjusts to individual eyesight
• Size W x H x D (mm): 107 x 88 x 38
• Weight: 215 g

One of the most anticipated astrophotography products of the the year is on the way!

High-quality waterproof and compact binoculars with a wide field of view for outdoor exploration.

The 10x25 WP II binoculars are built for those who love outdoor adventures in all weather conditions. With a 10x magnification and a 25mm objective lens, these binoculars provide crisp, high-contrast views, ideal for wildlife observation and sports events. Featuring BaK-4 prisms and multi-coated lenses, they deliver exceptional optical performance, while their waterproof and fog-proof design ensures reliable performance in challenging environments. Nitrogen-filled for extra protection against moisture, the rubber-coated body offers a durable and secure grip, even in wet conditions. Compact and easy to carry, the 10x25 WP II binoculars are perfect for any outdoor enthusiast who needs a reliable and rugged pair of binoculars.

· Roof Prism Type Binoculars
· 10x magnification
· 25mm objective lens
· BaK-4 prisms for bright, crisp images
· Multi-coated lenses
· Wide-angle of view
· Waterproof and fog-proof
· Nitrogen-filled
· Rubber-coated body
· Built-in dioptric correction
· Convenient centre-focus knob for easy focusing

What accessories do I need to go with my telescope?

This is a question we get asked every day! We've put together some of our favourite accessories as the BINTEL Observer's Kit #1.

Included are:

BINTEL Plossl 32mm

Most telescopes come with at least one and sometime two eyepieces as standard. They usually offer a medium power around 25mm and a higher power 10mm. These are enough to get you started on your astro journey. While many beginners ask how to increase the magnification of their telescope with additional eyepieces, they often don't realise there's advantages to reducing the magnification with a longer focal length eyepiece.

Lower magnification brings a wider field of view. Some wonderful astro objects in the night sky such as large nebulae and star clusters might not fit into the eyepiece at higher magnifications. They'll need a wider view to see them in their fullest detail.

2x Barlow Lens with T-Adaptor

A Barlow lens effectively changes the focal length of each eyepiece. You insert the Barlow into your telescope and then your eyepiece into the Barlow. This doubles the magnification of each of your eyepieces. Your 10mm eyepiece becomes a 5mm, your 25mm a 12.5mm and so on. It's a quick and effective way of making your telescope more versatile.

This Celestron Barlow also had a T-Adaptor thread. If you have a DSLR camera, simply buy the matching low-cost T-ring for your camera body type (Nikon, Canon etc) here and this can be used to attach a DSLR to your telescope.

Celestron Night Vision Red Torch - RRP $29.95

Why do astronomers use red torches?

No matter the size of the telescope you're using, what's seen through the telescope will be faint. Luckily, our eyes get used to low light after spending a short time in the dark. It takes about 30-40 minutes for us to become "dark adapted". Our eyes are then some 10,000 to 1,000,000 more sensitive to light compared to when we're in full daylight.

(Needless to say, our eyes become less sensitive in the dark as we age and take longer to adapt.... )

This is something we're all used to seeing. At low light, our sight moves from full colour to black and white as different parts of our eyes become active. This dark adaption or night vision is especially important when observing at night. The problem is that even a short burst of white light from a car headlight, an outdoor light or a normal torch can "reset" dark adapted eyes and you need to start the entire process of adapting to the dark all over again.

It's easy to avoid the loss of night vision by using a low intensity red light. This Celestron Night Vision Red Torch lets you adjust your telescope, red maps and book or even attach cameras - all without losing your night vision. Many experienced astronomers will tell you their red lights are some their most used and handiest accessories in their observing toolkit!

Celestron Moon Filter RRP $19.95- yes, I wear my Sunglasses at Night

The Moon is bright enough to cast shadows! It's also sometimes overwhelmingly bright in a telescope eyepiece. The glare can make it uncomfortable to view.

A Moon filter simply reduces intensity to make the Moon easier to observe. With glare reduced, you'll also be able to pick out the finer details on the Lunar surface. This Celestron Moon Filter screws into the base of all 1.25" eyepieces.

Observer's Map of the Moon - RRP $19.95

This is a handy fold out, two-sided map of the Moon.

You can observe features with your telescope and locate them on the map or vice versa. This map also features a directory of all the key lunar regions with coordinates to find them.

On the reverse side of the map, there are close-up photos and information about the most exciting lunar regions to explore. You’ll also find images of the North and South polar regions for reference​. Refer to the lunar observing tips for practical information about using your telescope or binoculars to explore the Moon.

The Observer’s Map of the Moon is waterproof, tear-resistant, and can be folded into an 20cm x 10cm size, making it easy to take along on your next camping trip, star party, or evening in your backyard. When not in use, the Moon map will be a stylish decorative poster on your wall. It makes a great display for your classroom or astronomy club.

New from ZWO

The ZWO New EFW-EOS II adapter has been designed as a short EOS adapter for EFW & Cooled camera(6.5mm backfocus version).

Extend distance: 17.5mm

So you can use Canon Lens with ASI1600 and EFW