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Explore Scientific Exos-2GT Mount with Open PMC-Eight GoTo Steel Tripod (Black) - The PMC-EIGHT Awarded a Sky & Telescope Hot Product for 2018  (Package on Sale)
Explore Scientific Exos-2GT Mount with Open PMC-Eight GoTo Steel Tripod (Black)

Explore Scientific Exos-2GT Mount with Open PMC-Eight GoTo Steel Tripod (Black) - The PMC-EIGHT Awarded a Sky & Telescope Hot Product for 2018 (Package on Sale)

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Your Price: CAD1,621.17
Retail Price:CAD1,669.81

Your Savings:CAD48.64(3%)

Usually ships in 2-3 business days
Part Number:ES-EXOS2GTPMCT3-00SN

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Equatorial Mount Accessories

The PMC-EIGHT Just Awarded a Sky & Telescope Hot Product for 2018


Product Highlights

  • Motorized Computer-Controlled EQ Mount
  • 28-Pound Payload Capacity
  • Precision Dual-Axis Micro-Stepper Motor
  • Integrated WiFi for Wireless Control
  • ExploreStars GoTo App for Windows
  • 70,000+ Object Database
  • Multiple Alignment Processes
  • Vixen-Style Dovetail Saddle
  • 2" Adjustable-Height Tripod with Tray
  • Runs on Eight D-Cell Batteries

Explore Scientific continued the refinement of their perennial-favorite mount to produce this upgraded version of their EXOS2GT PMC-Eight Motorized EQ GoTo Mount that provides users with a precision platform built to support and move refractor OTAs up to 152mm (6") aperture and reflectors of up to 203mm (8"), with a maximum payload capacity of 28-pounds. Modifications include the use of the PMC-Eight motor drive system, upgraded micro-stepper motors with encoders, installing a direct-drive connection between the drive shaft and motor, and replacing the wired control system with a wireless antenna for remote use from tablets and smartphones running Windows mobile operating systems. These modifications improve tracking precision, while reducing system vibration, and provide users with a wireless open-source control system that can be customized to their specific needs and shared with the Explore Scientific community.

The brains of the GoTo system is Explore Scientific's ExploreStars app for smartphones and tablets running Windows mobile OS that connects to the mount via its integrated WiFi antenna. If the mount is located near a WiFi network that is connected to the Internet, it can be controlled from a remote location. The app has a 70,000+ object database with an intuitive user interface controlled with the device's touchscreen, and an Ethernet 10/100 port. Multiple guide, slew, and tracking rates allow it to be easily aligned, manually controlled, and to accurately track near and deep-sky objects. A non-volatile memory and Real-Time clock preserves settings, including the backlash correction and PEC, when the system is turned off and power is disconnected.

The mount features a Vixen-style dovetail saddle for compatible OTAs, and an integrated "bull's eye" bubble level to assist in leveling the mount during set up. To make initial alignment faster and easier, Explore Scientific includes an illuminated polar axis scope for use in the Northern hemisphere. The tripod is built with large 2" diameter stainless steel legs and tight tolerances to reduce vibration for clearer viewing. A center stabilizer bar pulls the accessory tray up to lock the legs in place, adding further rigidity and vibration reduction. It is adjustable from 26.8 to 42.5" to accommodate a wide range of users and features large thumbscrews for tool-free adjustment in the field. An adjustable tray is also included with the tripod to keep eyepieces, flashlights, and other accessories safe and at the ready.

  • 28-pound payload capacity
  • Cast aluminum with black powder-coat
  • Vixen-style dovetail saddle to mount compatible OTAs
  • 9.9-pound counterweight with 20mm diameter shaft
  • Northern-hemisphere illuminated polar axis scope to increase alignment precision
  • Integrated "bull's eye" bubble level on mount base
  • Runs on eight user-supplied D-cell batteries
Electronics and Motors
  • Integrated 10/100 WiFi with full IP functionality enables direct connection to computers, smartphones, tablets, and networks for remote system control
  • PMC-Eight motor control system with a scalable 8-CPU multi-processor array that allows control of multiple systems from single user interface
  • 64kB EEPROM non-volatile memory bank retains settings and time when mount is turned off
  • Fully compatible with any computer platform using an ASCOM compliant software package
  • Serial and standard ST4 auto-guiding ports
  • High-resolution Nema11 bi-polar 0.09°, 400-count stepper motor
  • Micro stepping controller enables the motor to motor work at 12,800 steps per revolution
  • Belt drive system with precision 45-groove and 10-groove timing pulleys
  • Strong and long-lasting fiberglass re-enforced neoprene belt
  • Drive rates accurate to a few arc-seconds per day
  • Reversible for use in Northern and Southern hemispheres
  • Ball bearings on both axes reduce vibrations and minimize backlash at all tracking and slew speeds
ExploreStars Go-To System
  • Free software and app available for Windows PCs, tablets, and smartphones
  • 70,000+ object database including 2000+ stars, with a downloadable catalog of 72,000+ additional stars
  • Native catalogs include: Bayer, Flamstead, SAO, HD/Harvard, DM, BD/CD/CPD, GSC, and RNGC/IC
  • Open source code with available developer kit allows for complete customization and sharing
  • Four-button interface for guiding, centering, moving, and slewing using device touchscreen
  • Selectable and user-defined GoTo, Slewing, Centering, and Guiding rates
  • 1-star, 2-star, and 3-star alignment processes
  • Sidereal, King, Lunar, Solar, and user-defined tracking rates
  • Additional functions: Synchronize, Search, Coordinate input
  • Custom mount support using user-defined stepper count scaling
  • Three-section adjustable-height
  • 2" stainless steel legs
  • 26.8 to 42.5" height adjustment range
  • Center stabilizer bar locks legs in place to reduce vibrations
  • Accessory tray with holes for 1.25" eyepieces
  • Spiked feet for use in ground and grass for increased stability, especially on rough or uneven areas


Mount Type German equatorial
Load Capacity 28.0 lb / 12.7 kg
Motor Dual-axis micro stepper motors with belt-drive system
GO-TO Capability Yes
Polar Axis Scope Yes
Includes Tripod/Pier Stainless steel adjustable-height tripod
2.0" / 5.1 cm diameter legs
Height, Min: 26.8" / 68.1 cm
Height, Max: 42.5" / 108.0 cm
Counterweight 9.9 lb / 4.5 kg
Power Source 8 x D-cell batteries
Weight Not specified by manufacturer

In the Box
Explore Scientific EXOS2GT PMC-Eight Motorized EQ GoTo Mount and Tripod
  • 9.9 lb Counterweight for Exos-2
  • 20mm Counterweight Shaft
  • Stainless Steel Tripod with Accessory Tray
  • Polar Axis Scope
  • Wireless Transmitter/Receiver
  • 2 x Motor Control Cables
  • Limited 1-Year USA/Canada Warranty, Extendable to Transferrable Lifetime Warranty with Registration within 60 Days


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