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.
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