The ED80 Essential Series Air-Spaced Triplet Refractor is a true apochromatic telescope that reveals celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasures of the Messier catalog. 

Offering true diffraction-limited optics with genuine HOYA FCD1 ED glass, the ED80 is the perfect size to encourage spontaneous stargazing sessions, this high-quality telescope is a perfect grab-and-go instrument for exploring the skies.

Featuring an air-spaced triplet optical design that virtually eliminates chromatic aberrations, this telescope generates brilliant high-contrast images by combining genuine HOYA extra-low dispersion (ED) glass and proprietary EMD enhanced multi-layer deposition coatings on all optical surfaces.

Although it is a standout telescope on its own, the 80mm also is compact enough to mount on a larger telescope, which can add versatility to your astrophotography experience by separating the guiding and imaging duties. The telescope tube's outside diameter is 91 mm.

Explore Scientific 2" rack-and-pinion focuser comes with 2 extension tubes. Explore Scientific Hybrid Finder Scope Base installed on scope. (Finder scope not included.)

Included in the Box:

• ED80 Essential Series Air-Spaced Triplet Refractor Telescope
• 0.8x Focal Reducer with ends caps and adapter with 42 mm T2 ring thread
• iEXOS-100-2 PMC-Eight Equatorial Tracker System with WiFi and Bluetooth®
• 99% reflective 2-inch diagonal
• Explore Scientific 2.5-inch hexagonal focuser rugged enough to load 10 pounds onto the focuser
• 2 focuser extension tubes
• Hybrid Finder Scope Base installed on scope. (Finder scope not included.)
• Built-in dew shield
• Dust cover/lens cap

Explore Scientific 0.8x Focal Reducer

The NEW Explore Scientific 0.8x Focal Reducer lets astrophotographers explore the wonders of wide-field astrophotography in an easy-to-use package.

The 0.8x Focal Reducer works with the following Explore Scientific telescopes:

• ES-ED0806-02
• ES-ED10207-02
• FCD100-0806-02
• FCD100-10207-02
• FCD100-10207-CF-01

The 2-element 0.8x focal reducer turns the 480-mm-focal-length telescopes into devices with a focal length of 384 mm. This changes the telescopes from an f/ratio of f/6 to a much faster f/4.8.

The device turns the 102 mm telescopes, with a focal length of 714 mm, into telescopes with a focal length of 571 mm: From f/7 to f/5.6.

Compare this with smaller diameter wide-field telescopes. The Explore Scientific ES and FCD100 80mm telescopes offer significantly more light-gathering aperture. The ES and FCD100 telescopes gather:

• 1.3 times more light than a 70 mm telescope
• 1.8 times more light than a 60 mm telescope
• A whopping 2.6 times more light than a 50 mm telescope

The faster f/ratio, coupled with more light-gathering aperture, allows more light to fall onto the camera sensor. For instance, to capture the same amount of light as a 100-second exposure with the Explore Scientific 80 mm takes 256 seconds on a  50 mm, 178 seconds on a 60 mm, and 131 sec on 70 mm – assuming the same f/ratio. This means that the Explore Scientific 80mm telescope with the 0.8x Focal Reducer can capture far more detail faster than the competition.

The focal reducer, which has 55 mm (+/- 2 mm) of back spacing, is threaded to accept a standard 42 mm T-ring, making attaching a camera easy. 

iEXOS-100-2 PMC-Eight Equatorial Tracker System with WiFi and Bluetooth®

The iEXOS-100 PMC-Eight™ Equatorial Tracker System is a complete astronomical computerized Wifi or Wired GOTO Equatorial Tracker with integrated PMC-Eight™ electronics suitable for attaching Small Telescopes or DSLR Cameras attached to the Explore Scientific DSLR Camera Dovetail Assembly.

Use with the free ExploreStars App for Tablets (Windows, Android, Amazon and Apple), or with the free ASCOM Standards Compliant PMC-Eight™ ASCOM driver and the ASCOM POTH Client from Explore Scientific (either wired or wireless) to work with virtually any sky software that supports ASCOM. Tablet or computer must be purchased separately.

The iEXOS-100 utilizes a proven German equatorial mount design and Explore Scientific’s revolutionary PMC-Eight™ Precision Motion Control system to flawlessly navigate the night sky and track objects as they journey across it. This combination provides superior observing and imaging performance without a prohibitive price tag.

GOTO systems play an important role in the world of amateur astronomy because they ensure users spend less time searching for particular objects and more time observing and imaging. The PMC-Eight™ with its versatile connections supported with free to download apps for Windows computers or Android and iOS tablets only (tablets must have a screen of at least 7 inches), or through the free to download ASCOM PMC-Eight™ driver and POTH Client to connect to your favorite ASCOM Compliant Astronomical Software, can allow you to control the telescope from a few feet away or by communicating computer-to-computer with an Internet connection from virtually anywhere in the world. 

One of the standout features of the iEXOS-100 system is its German equatorial design. When it comes to tracking the stars with a telescope, there is nothing that compares to a German Equatorial Mount (GEM) because it will precisely follow objects as they rise in the east and set in the west. For observers, a GEM makes it easy to keep your celestial target in your eyepiece. For imagers, it helps you avoid common astrophotography pitfalls like field rotation.

Before you can track an object, you need to find it, and that objective can be daunting when you’re faced with a vast expanse of inky black sky or a bright city sky. The iEXOS-100 puts a powerful GOTO system in your arsenal of astronomical tools that takes the frustration out of navigating the night sky. This integrated version of Explore Scientific’s PMC-Eight™ system transcends the industry standard single processor by utilizing an 8-core microcontroller with eight CPUs that operate independently of one another to focus on defined functions. This delegation of tasks among the processors results in a system that offers superior responsiveness, efficiency, reliability and astoundingly fast timing intervals for smooth image acquisition and accurate tracking.

Although it is internally complex, the GOTO system can be easily operated from your own Apple, Android or Windows tablet using the ExploreStars app, which has an intuitive nature that makes it simple and quick to align your telescope, navigate the stars and learn specifics about tens of thousands of celestial objects. This dynamic app is fueled by a database that is routinely updated to ensure it remains a relevant resource.

Our commitment to creating a streamlined GOTO mount is obvious in other design choices. The iEXOS-100 has smooth locking clutches that will let you quickly reposition your telescope from one side to the other and an altitude knob for smooth height adjustments. The mount base includes a small polar alignment tunnel that allows users to roughly align their observing setup with Polaris. It also has a simple bubble level that comes in handy when stabilizing your tripod. Other features include a bracket for holding the battery pack, which powers the PMC-Eight™ system through 8 C batteries (not included); two 1 kg counterweights for balancing (telescopes and accessories that weigh more than 6 lbs required additional counterweights); and glow-in-the-dark markers on certain points of the mount and tripod so you can stay oriented with your setup at night. The mount is designed to hold up to 19 lbs (scope, accessories, and counterweights added together).

The mount weighs 9.45 pounds (4.29 kg), while the lightweight Travel Tripod and accessory tray weighs 5.5 pounds (2.5 kg). The Travel Tripod, when collapsed is 27.25 inches (69.21 cm) tall.

Recommended Products:

• iEXOS-100 2.2 Pound Counterweight
• Explore Scientific DSLR Camera Dovetail Assembly
• Azimuth Adjuster Adapter
• Medium-Duty Field Tripod
• Heavy-Duty Field Tripod
• USB Power Bank
• 116-2P-06, Timing Belt

Resources:

• PMC-Eight, the Vision and Technology
• ExploreStars App and ASCOM Downloads
• PMC-Eight Knowledgebase
• The OpenGOTO Community Home Page
• PMC-Eight and OpenGOTO Community Groups.io Forum

iEXOS-100-2 PMC-Eight Equatorial Tracker System with WiFi and Bluetooth®

Limited Warranty is one year, which converts to the Explore STAR Transferable Extended Life of the Product Warranty when the product is registered within 60 days of purchase. Click Here to register.

From the Astronomy Magazine April, 2017 Review:

…“Then I really went nuts. Or so I thought. I switched to a 3.2mm planetary eyepiece that upped the magnification to 150x, which approached the theoretical upper limit for a 3-inch. When I gazed into the eyepiece, the four members of the Double Double showed surprisingly well, leaving me to wonder what this scope might do on a night of optimal seeing conditions. I have no doubt the ED80 can achieve its advertised resolving limit of 1.45”…. Small and portable, it’s an ideal grab-and-go telescope. It’s also extremely versatile, able to capture wide-field views spanning several degrees while also providing the high power punch to tease out lunar and planetary detail and split close double stars…"

Download ExploreStars Software Here

Find inserts to your PMC-Eight Questions on our Knowledge Base

Download the Instruction Manual