IOPTRON GEM28 WITH IPOLAR AND 1.5" TRIPOD
iOptron
Equatorial
Payload: 12.7 kg
Encoders: None
4.5 kg
IOPTRON GEM28 WITH IPOLAR AND 1.5" TRIPOD - With Case is backordered and will ship as soon as it is back in stock.
The new iOptron GEM28 is a compact next-generation German equatorial mount designed with portability in mind. Weighing in at only 4.5kg, it can support up to a 12.7kg payload - an incredible 2.8 mount weight to payload ratio.
iOptron achieved this using design methods developed to reduce mass in their 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, iOptron 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 unparalleled connectivity and recordable permanent periodic error correction (PPEC) to repeat optimal PEC training sessions. The gears are spring-loaded for reduced backlash.
With 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.
This GEM28 package includes the iPolar electronic polar scope installed for quick and easy polar alignment, and comes with the 1.5" 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
- iPolar electronic 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
Specifications
| Mount |
German Equatorial Mount |
|---|---|
| Max payload | 12.7 kg (28 lbs) excluding counterweight |
| Mount weight |
4.5 kg (10 lbs) |
| Payload/Mount weight ratio | 2.80 |
| Body material |
All metal, Casting + CNC machined, powder-coated |
| Periodic error (PE) | <±10 arcsec |
| PEC | Yes, Permanent PEC |
| Worm period | 600 sec |
| Right Ascension worm wheel | Φ 88 mm, 144 teeth aluminium |
| Declination worm wheel | Φ 88 mm, 144 teeth aluminium |
| Right Ascension axis shaft | Φ 35 mm steel |
| Declination axis shaft | Φ 35 mm steel |
| Right Ascension bearing | Φ 55 mm ball bearing |
| Declination bearing | Φ 55 mm ball bearing |
| Worm gears | Φ 15.2 mm, Brass |
| Motor drive | 1.8º stepper motor, 128 x microdivision |
| Resolution | 0.17 arc seconds |
| Transmission | Synchronous belt |
| Latitude adjustment range | 10º ~ 70º |
| Azimuth adjustment range | ± 6º |
| Polar Scope | iPolar electronic polar scope |
| Level indicator | Level bubble |
| Hand Controller | Go2Nova 8409 with ~212,000 objects database |
| Tracking | Automatic |
| Slew speeds | 1×,2×,8×,16×,64×,128×,256×,512×, MAX (6º/sec) |
| Power consumption | 0.6A (tracking), 0.9A (GOTO) |
| Power requirement | 12V DC, 5A, 5.5 x 2.1mm plug |
| Power-down memory | Yes |
| Wi-Fi | Yes, built-in |
| Communication port | Yes (Wi-Fi and USB) |
| Autoguide port | Yes (ST-4 compatible) |
| PC computer control | Yes (ASCOM) |
| Counterweight shaft | Φ 20 x 200 mm (M16), Stainless Steel |
| Counterweight | 4.5 kg (10 lbs) |
| Tripod | LiteRoc heavy-duty stainless steel tripod w/ vibration suppression pads (7.5kg) |
| 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 |
| SKU | IO-G281A1 |
Items included
- iOptron GEM28 mount
- Go2Nova 8409 Hand Controller
- One 10lbs (4.5 kg) counterweight
- Stainless steel counterweight shaft
- Internal iPolar electronic polar scope
- AC adapter (240V)
- 2X coiled control Cable (6P6C RJ11 to RJ11, straight wired)
- USB cable for mount
- USB cable for iPolar
- Standard 1.5 inch heavy-duty stainless steel tripod (5kg)
- Quick Start Guide
Downloads
 Quick start guide
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iPolar manual
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Firmware downloads
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