A modified upgrade of a popular earlier version from Explore Scientific, the EXOS-2GT PMC-Eight Motorized EQ GoTo Mount and Tripod provides users with a precision platform built to support and move refractor optical tube assemblies (OTAs) of up to 152mm (6") aperture and reflectors of up to 203mm (8"). The payload capacity for astrophotography is 28 lb plus the included 9.9 lb counterweight. For visual use, the payload capacity is 40 lb plus the counterweight.
Modifications include the use of the PMC-Eight motor drive system, upgraded micro-stepper motors with encoders, installation of a direct-drive connection between the drive shaft and motor, and replacement of the wired control system with a wireless antenna, which allows for remote use from tablets and smartphones running Windows mobile operating systems. These modifications improve tracking precision while reducing system vibration. They 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 brain of the GoTo system is Explore Scientific's ExploreStars app for iOS, Android, and Windows 8.1/10 mobile devices and PCs. The app has a 70,000+ object database and an intuitive user interface.
The mount features a Vixen-style dovetail saddle for compatible OTAs, and has an integrated "bull's eye" bubble level to assist in leveling the mount during setup. 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 it 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.
