Description

iOptron GEM28 + iPolar + LiteRoc + Case 

Introducing iOptron’s new compact next-generation German equatorial mounts the GEM28!

Like their predecessors, the GEM28 is designed with portability in mind, weighing in at only 10 lbs it can support up to a 28lb payload an incredible 2.8 mount weight to payload ratio. We achieved this using design methods developed to reduce mount mass in our CEM family of mounts. The German EQ versions were created to satisfy consumer that prefer a more traditional mount and to function at higher latitudes.

Building on the legacy of earlier GEM models we have added features for convenience and functionality. A positive lock gear engagement system (easy to use even when wearing gloves), Built-in Wi-Fi enabling unparallel connectivity and recordable permanent periodic error correction (PPEC) to repeat optimal PEC training sessions. Regarding functionality the GEM28 delivers precise pointing and accurate tracking. The GEM28 sets the new standard for compact German equatorial goto mounts.

The GEM28 is equipped with the latest advanced GOTONOVA® GOTO technology, making it one of the most powerful and accurate GOTO mounts available. The 212,000 object library ensures you’ll never run out of targets to see or image. The Go2Nova® Hand Controller is intuitive to use and its large 4-line LCD screen simplifies the process of setting telescopes and locating objects.
The CEM26B mount has an AccuAlignTM optical polar scope installed for quick and easy polar alignment. It comes with a 1.5 heavy duty stainless steel tripod.

Features:

• German equatorial design, latitude range of 10° ~ 70°
  
• Ideal for both visual observation and astrophotography
  
• Low periodic error (< ± 10 arc seconds)
  
• Payload of 12.7 kg (28 lbs) with the mount-only weight of 4.5 kg (10 lbs)
  
• CNC machined and cast metal body
  
• Spring loaded gear system
  
• Large easy to use quick-lock gear clutches
  
• Stepper motor with low power consumption
  
• AccuAlignTM calibrated polar scope
  
• Polar alignment routine for those who can’t see the Pole Star
  
• Go2Nova® 8409 controller with Advanced GOTONOVA® GOTO Technology
  
• Integrated ST-4 autoguiding port
  
• Built-in Wi-Fi
  
• USB port for firmware upgrade and computer control
  
• Standard 1.5 inch heavy-duty stainless steel tripod (5kg)
  
• Die-cast metal tripod spreader with accessory tray
  
• Optional hard carrying case
  
• Optional 32-channel Global Positioning System (GPS)
  
• Optional iGuiderTM autoguiding system (#3360)

• Technical 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) **		<±10 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		AccuAlignTM 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		1.5 Stainless Steel (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

  In the Box

  • iOptron GEM28
  • Integrated iPolar System or Built-in AccuAlign
  • 1.75 LiteRoc Tripod Or 1.5 Stainless Steel Tripod
  • Counterweight Shaft
  • 10 lb Counterweight
  • Go2Nova 8409 Hand Controller with Cord
  • Hard Case (Optional)

  • Warranty & Manuals
    

    iOptron 2-Year Warranty

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