









Explore FirstLight 80mm Telescope Go-To Tracker Combo
The Explore FirstLight 80mm Refractor Telescope with iEXOS-100 Go-To Tracker is the perfect blend of portability, power, and intelligent tracking. With a crisp 80mm aperture and high-quality optics, this system delivers stunning views of lunar landscapes, planetary detail, and bright deep sky targets. Paired with the cutting-edge PMC-Eight™ Go-To mount, it allows you to effortlessly find, follow, and capture celestial objects with pinpoint accuracy. Whether you’re a beginner eager to explore or an enthusiast ready to dive into astrophotography, this combo is built to elevate every observing session.
Shipping & Returns
Free shipping on orders $70+ shipped within the continental United States. Special‑order items are excluded. USPS orders may take an additional business day for processing. Learn more.
Returns must be submitted within 30 days from the date of purchase for a refund or replacement. The item must be unused, in its original condition and packaging. Learn more.
Product Manual & Resources
Download ExploreStars Software Here
Find inserts to your PMC-Eight Questions on our Knowledge Base
Download the Instruction Manual
Product Warranty
Limited USA One Year Warranty. Click Here to register.
Warnings
⚠️ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
⚠️ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Standout Features
Precision Go-To Tracking
The iEXOS-100 PMC-Eight™ mount with 8-core architecture delivers accurate object tracking and seamless navigation via the ExploreStars app.
Versatile Optical Power
The 80mm refractor with a 640mm focal length (f/8) reveals impressive detail on the Moon, planets, and deep sky wonders.
Astrophotography-Ready
Includes a smartphone adapter and smooth clutched axis system for easy imaging and stable operation.
Robust, Portable Design
Lightweight yet sturdy German equatorial mount supports up to 19 lbs and features glow-in-the-dark markers, dual counterweights, and a polar sight tunnel for fast setup.
Product Specifications
Item Number: ES100AZADJ-02
Comes With: Smartphone Adapter One 25 mm Plössl Eyepiece Red Dot Viewfinder Downloadable Software
Magnification: 125x
Focal Length: 640mm focal length
Focal Ratio: f/8
Adapter: 40mm draw tube focuser; 1.25" 90° Diagonal;
Optical Diameter: 80mm
Eyepiece (Included): 25 mm Plössl
Mount
Mount head weight: Instrument 9.45 lbs.
Tripod weight: 5.35 lbs.
Tripod fully collapsed, no mount head: 25.5”
Tripod open, retracted legs, no mount head: 25”
Tripod open, retracted legs with the mount head: 38.5” at highest point, 36” to the center of the mounting bracket
Tripod open, legs fully extended, no mount head: 42”
Tripod open, legs fully extended with the mount head: 45” at highest point
Counterweights: 1 kg each
Mount weight capacity: Approx. 9 lbs (equipment weight only),15 lbs Photographic (equipment and counterweights); Approx. 19 lbs Visual (equipment and counterweights)
Additional Product Information
Explore FirstLight 80mm Refractor
- 80mm aperture will reveal impressive lunar details ranging from craters to rilles, planetary features like Saturn’s ring structure or Jupiter’s cloud belts; and bright deep sky treasures like galaxies, nebulae and clusters.
- Model comes with a 25mm Plössl eyepiece, a 90° diagonal for more comfortable viewing and a red dot viewfinder to aid in object location.
- Included adapter helps observers use their smart device to capture and share images.
iEXOS-100 PMC-Eight Equatorial Tracker System
- Integrated Explore Scientific PMC-Eight™ system that transcends the industry standard single processor by utilizing eight CPUs that operate independently of one another to focus on defined functions, which results in superior responsiveness, efficiency, reliability and astoundingly fast timing intervals.
- Clutched dual-axis worm gears with quiet precision stepper motor belt drives
- Intuitive ExploreStars app, which is available for Apple, Android and Windows tablets, that makes it simple to operate the GOTO system. Through it, users can quickly align their telescope, navigate the stars and learn specifics about tens of thousands of celestial objects
- Clutched RA and Declination axis are smooth and allow for precise balancing which makes the process of repositioning your telescope efficient
- Polar alignment sight hole through the RA axis and precise altitude control for fast alignment without polar scope.
- Battery pack powering the PMC-Eight™ system uses 8 C batteries and is secured in a bracket on one of the tripod legs when in use
- Two 1 kg counterweights included
- Glow-in-the-dark markings on mount and tripod
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 a standard "Vixen Style" Dovetail Plate. 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, Android, and iOS, 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; 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 weights 9.45 pounds (4.29 kg), while the tripod and accessory tray weighs 5.5 pounds (2.5 kg). The tripod, when collapsed is 27.25 inches (69.21 cm) tall.
You may also like
Free United States Shipping
Orders $70+ shipped within the continental United States qualify for free standard shipping. Learn more.
Explore Scientific Warranty
Register your product within 60 days to activate your warranty coverage. Learn more.
30 Day Returns
Returns are accepted within 30 days if the item is in original condition. Learn more.
Dedicated Customer Support
Our customer service team is here to help with product support and warranty service. Learn more.











