The iOptron GEM45 takes German equatorial mounts to the next level by combining cutting-edge features with a proven design. One look at its sleek CNC-machined body and you know this mount means business.

Drawing from the knowledge gained through our CEM series, we've streamlined the GEM45 to achieve an impressive 2.5 payload-to-weight ratio. Weighing just 17.5 pounds, this compact powerhouse can precisely navigate and track up to 45 pounds of equipment. The built-in iPolar electronic polar scope simplifies the polar alignment process, even if you can't see the North Star. Thanks to large, easy-to-use levers on the quick-lock drive system, engaging the gears is a breeze, even with gloves on. And don't worry about tangled cables; the mount's advanced internal cable management keeps everything neat and tidy. A 6-inch dual saddle fits both Losmandy and Vixen style dovetail plates. Plus, the mount employs dependable stepper motors and energy-efficient tech. The included LiteRoc 1.75" tripod offers stability without the bulk. Standard features include a 212,000+ object library with star identification, GPS, and optional Wi-Fi capability through the iStarFi adapter.

The GEM45G model ups the ante with its onboard iGuider system, which includes a 30mm f4 lens and a 1/3-inch imaging sensor with 3.75um pixels, all neatly integrated into the mount's dovetail saddle. The iPolar, iGuider, and an extra USB port all run through a single USB connection for convenience.

Features:

German equatorial mount packed with cutting-edge tech
Suited for both stargazing and astrophotography
Supports 45-pound gear while weighing just 17.5 pounds
Quick-lock gear clutches for easy engagement
iPolar electronic polar scope for simple alignment
Low periodic error (< ±7.5 arc seconds) and PPEC
Precise stepper motor for reliable GOTO and tracking
Go2Nova hand controller with Advanced GOTONOVA GOTO Tech and a built-in heater
iGuider onboard autoguiding system
32-channel GPS
USB and ST-4 autoguiding ports
Organized cable management
6" dual dovetail saddle compatible with Losmandy-D & Vixen plates
Optional Wi-Fi connectivity
LiteRoc 1.75" tripod and hard case included
NEW iOptron subsidized TheSky Imaging Edition software

What's in the Box:

iOptron GEM45 mount with black gear switches (#7620A)
Go2Nova Hand Controller
11-pound counterweight
Stainless steel counterweight shaft
iPolar electronic polar scope
GEM45 GPS module
AC adapter (100V-240V)
Two 6P6C RJ11 to RJ11 coiled control cables
USB cable
Hard case for mount head
LiteRoc 1.75" tripod with leg locks
Quick Start Guide

Specifications

Mount	German Equatorial Mount
Max payload*	45 lbs (20 kg), exclude counterweight
Mount weight	17.5 lb (7.9 kg)
Payload/Mount weight	2.53
Structure Material	All metal, CNC machined
Exterior Finish	Anodized red/black
Latitude adjustment range	14º ~ 68º
Azimuth adjustment range	± 6º
Tracking accuracy (PE)**	<±7.5 arcsec
PEC	PPEC
Period	400 sec
Worm diameter	Φ17mm, Brass
Right Ascension worm wheel	Φ110mm, 216 teeth, zero backlash
Declination worm wheel	Φ110mm, 216 teeth, zero backlash
Right Ascension axis shaft	Φ45mm steel
Declination axis shaft	Φ45mm steel
Right Ascension bearings	Φ68mm
Declination bearings	Φ68mm
Counterweight shaft	Φ28X280 mm, Stainless Steel (1.2 kg)
Counterweight	11lbs (5kg) X1
Motor	Precision stepper motor, 1.8º/128X micro-step
Motor resolution	0.08 arcsec (200 PPS)
Transmission	Synchronous belt
Hand Controller	Go2Nova® HC, 8 line 21 character LCD
Star Database	212,000+, star identification
Power	DC 12V, 5A (5.5mm/2.5mm plug)
AC adapter	100V ~ 240V (included)
Power consumption	0.6A(Tracking), 0.9A(GOTO)
Power-down memory	Yes
Polar scope	Internal iPolar ^TM electronic polar scope
Meridian treatment	Stop (0-20° pass), flip
Zero position	Automatic zero search
Dovetail saddle	6" Losmandy D & Vixe dual saddle
Max slew speed	4.5°/sec (1080X)
Guiding scope/camera	Built in guiding scope and camera, iGuider^TM
Guiding port	ST-4
Communication port	USB
GPS	Yes
WiFi	External (optional)
Cable Management	DC12V (3A), ST4,USB
Tripod	1.75" Stainless Steel(~8kg), or optional Tri-pier
Hard case	Included (mount head)
Operation temperature	-10ºC ~ 40ºC
Warranty	Two year limited

* OTA size and length dependent
** Measured with encoder on the bench, 400 seconds

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iOptron GEM45 with iGuider

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