Say hello to iOptron's latest and greatest in German equatorial mounts: the GEM28! Just like its older siblings, this bad boy is built for the wanderer in you. We're talking a featherlight 10 pounds that can lug around a whopping 28 pounds of gear. Yep, that's a 2.8 mount-to-payload weight ratio! How? We borrowed some cool engineering tricks from our CEM family.

So, you're into the classics, huh? These German EQ models are your jam, especially if you're stargazing from higher latitudes.

But we didn't stop at just slimming it down. We slapped on some wicked features for ease and functionality. Glove-friendly positive lock gear engagement? Check. Wi-Fi that connects like a dream? Yup. Recordable PEC training sessions? You betcha. And if you’re worried about precision, don’t. The GEM28 nails it with on-point pointing and tracking.

Tech-wise, this mount's got game. Thanks to the latest GOTONOVA® GOTO tech, we’re talking primo accuracy here. And get this: the Go2Nova® Hand Controller sports a 4-line LCD screen that makes finding celestial objects a breeze. Don't forget the ginormous library of 212,000 objects; you'll never run out of stuff to look at.

You want specs? Cool, here’s the nitty-gritty:

Design: German equatorial, latitude sweet spot between 10° and 70°
Usage: Awesome for both eyeballing and snapping pics
Error Margin: Super low, less than ± 12 arc seconds
Payload: 28 pounds, while the mount is a mere 10 pounds
Material: CNC machined and cast metal
Gear System: Spring-loaded, for smooth moves
Gear Lock: Quick-lock clutches that are user-friendly
Motor: Stepper type, doesn't guzzle power
Polar Scope: AccuAlignTM calibrated
Polar Alignment Help: In case the Pole Star’s shy
Controller: Go2Nova® 8409 with Advanced GOTONOVA® GOTO tech
Autoguiding: Integrated ST-4 port
Wi-Fi: Built-in, 'cause we're living in the future
USB Port: Firmware updates and computer control
Tripod: LiteRoc in heavy-duty stainless steel, weighs 7.5kg
Tripod Extras: Die-cast metal spreader and accessory tray
Add-ons: Carrying case, 32-channel GPS, and iGuiderTM autoguiding system (#3360) are all optional but totally worth it.

What comes in the box? Or should I say boxes?

Box 1: G281B-GEM28 Head w/ AccuAlign/Tray (G281B)
Box 2: 8283-CEM26/GEM28 LiteRoc Tripod w/o Tray (C26/G28 LiteRoc)

So, what are you waiting for? The universe isn’t gonna explore itself!

Specifications

Mount	German Equatorial Mount
Payload *	28 lbs (12.7kg), exclude counterweight
Mount weight	10 lbs (4.5kg)
Payload/Mount weight	2.80
Structure Material	All metal, Casting + CNC machined
Exterior Finish	Powder coating
Periodic error (PE) **	<±12 arcsec
PEC	Yes, Permanent PEC
Worm period	600 sec
Right Ascension worm wheel	Φ88mm, 144 teeth aluminum
Declination worm wheel	Φ88mm, 144 teeth aluminum
Right Ascension axis shaft	Φ35mm steel
Declination axis shaft	Φ35mm steel
Right Ascension bearing	Φ55mm ball bearing
Declination bearing	Φ55mm ball bearing
Worm gears	Φ15.2mm, Brass
Motor drive	1.8º stepper motor, 128X microdivision
Resolution	0.17 arc seconds
Transmission	Synchronous belt
Latitude adjustment range	10º ~ 70º
Azimuth adjustment range	± 6º
Polar Scope	AccuAlign ^TM optical polar scope
Level indicator	Level bubble
Hand Controller	Go2Nova® 8409 with ~212,000 objects database
Tracking	Automatic
Slew speed	1×,2×,8×,16×,64×,128×,256×,512×,MAX(6º/sec)
Power consumption	0.6A(Tracking), 0.9A(GOTO)
Power requirement	12V DC, 5A
AC adapter	100V ~ 240V (included, for indoor use only)
Power-down memory	Yes
Wi-Fi	Built-in
Communication port	Yes (Wi-Fi and USB)
Autoguide port	Yes (ST-4 compatible)
Firmware upgrade	Yes
PC computer control	Yes (ASCOM)
Counterweight shaft	Φ20X200mm (M16), Stainless Steel
Shaft extension	Φ20X120mm (M16), Stainless Steel
Counterweight	10 lbs (4.5kg)
Tripod	LiteRoc heavy-duty stainless steel tripod (7.5kg)
Dovetail saddle	3.8" Vixen-style, center adjustable
Carrying case	Optional
GPS	Optional external 32-channel GPS
Autoguiding	Optional external iGuider 1
Operation temperature	-10ºC ~ 40ºC
Warranty	Two year limited

* OTA size and length dependent, smaller than 6" in diameter recommended
** Measured with encoder on bench, 10 minutes

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iOptron GEM28 with LiteRoc Tripod

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