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iOptron GEM28 w/ iPolar/1.5T - G281A1

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Mount
iOptron
G281A1
$1,853 CAD
We will price-match in-stock Canadian astronomy dealer pricing


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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 GEM28A mount has an integrated electronic polar finder scope known as the iPolar. This tool ensures the accurate alignment of a telescope, even when the pole star is obscured. It comes with a 1.5" heavy duty stainless steel tripod.

Shipping Box #1: G281A-GEM28 Head w/ iPolar/Tray (G281A)
Shipping Box #2: 8281-CEM26/GEM28 1.5" Tripod w/o Tray (C26/G28 1.5T)Manual:
Quick Start Guide
Instruction Manual
iPolar Operation Manual

Firmware and Software:
Download Latest Firmware
iPolar Software

iOptron Telescope ASCOM Driver:
Install ASCOM Driver and Commander

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 ?88mm, 144 teeth aluminum
Declination worm wheel ?88mm, 144 teeth aluminum
Right Ascension axis shaft ?35mm steel
Declination axis shaft ?35mm steel
Right Ascension bearing ?55mm ball bearing
Declination bearing ?55mm ball bearing
Worm gears ?15.2mm, 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 iPolar TM electronic 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 requiremention 12V DC, 5A
AC adapter 100V ~ 240V (included)
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 ?20X200mm (M16), Stainless Steel
Shaft extension ?20X120mm (M16), Stainless Steel
Counterweight 10 lbs (4.5kg)
Tripod 1.5" Stainless Steel (5kg)
Dovetail saddle 3.8" Vixen-style, center adjustable
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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