iOptron Mount GEM28 iPolar 1.5" Tripod

The GEM28, like its predecessors, prioritizes portability, tipping the scales at a mere 10 lbs yet capable of accommodating a whopping 28 lbs payload, boasting an impressive 2.8 mount weight to payload ratio. Achieving this feat involved implementing design methodologies honed from our CEM mount family to reduce mount mass. Crafted with German EQ versions to cater to traditional mount enthusiasts and function seamlessly at higher latitudes.

Expanding on the legacy of earlier GEM models, we've integrated features for enhanced convenience and functionality. These include a user-friendly positive lock gear engagement system, operable even with gloves on, along with built-in Wi-Fi for unparalleled connectivity. Moreover, it offers recordable permanent periodic error correction (PPEC) for precise tracking and optimal PEC training sessions. Functionally, the GEM28 ensures precise pointing and accurate tracking, setting a new benchmark for compact German equatorial goto mounts.

Equipped with the latest advanced GOTONOVA® GOTO technology, the GEM28 stands as one of the most powerful and accurate GOTO mounts available. Its extensive 212,000 object library ensures a plethora of targets for observation or imaging. The intuitive Go2Nova® Hand Controller, featuring a large 4-line LCD screen, simplifies telescope setup and object location.

Key Advantages:

• German equatorial design with a latitude range of 10° to 70°
• Suitable for both visual observation and astrophotography
• Low periodic error (< ± 10 arc seconds)
• Payload capacity of 12.7 kg (28 lbs) with a mount-only weight of 4.5 kg (10 lbs)
• CNC machined and cast metal body
• Spring-loaded gear system with large, easy-to-use quick-lock gear clutches
• Stepper motor with low power consumption
• Belt transmission for enhanced performance
• AccuAlignTM calibrated polar scope
• Polar alignment routine for those unable to see the Pole Star
• Go2Nova® hand controller with advanced GoTo Technology
• Integrated ST-4 autoguiding port
• Built-in WiFi and USB port for firmware upgrades and computer control
• Die-cast metal tripod spreader with accessory tray
• Optional hard carrying case
• Optional 32-channel Global Positioning System (GPS)
• Optional iGuiderTM autoguiding system

Specifications:

Capacity:

Designation: GEM

Max. additional load capacity: 12.7 kg

Polar elevation setting: 10°-70°

Motor speeds: 1, 2, 8, 16, 64, 128, 256, 512

Position precision: +/-6

Precision of tracking: 0.17

Materials:

Worm gear: Aluminium

Worm wheel: Brass

Worm gear teeth (RA): 144 (Aluminium)

Counterweight(s): 1 (4.5kg)

Material of counterweights: Steel

Diameter of counterweight bar: 20 mm

Software and Interfaces:

Go2Nova

Display screen: 2.17 x 0.8 (LCD display with backlight)

Database: 212,000

Connection manual controller: USB & ST4 cable

Interfaces: ST-4, HBX, USB, DEC

Cable-guide: internal

Operating Conditions:

Operating temperature: -10°C to +40°C

Power supply: 12V DC, 5A

Power consumption: 0.9 mA

Special Features:

Polar axis scale: Yes

Fitting for prism rail: Yes (Vixen)

PEC correction: Yes (permanent)

GoTo system: Yes

GPS- (optional)

Controllable via PC: Yes

Updateable via web: Yes

Accessory tray: Yes

Equipment:

Transport cases: No

Pole finder: Yes

Power pack: Yes

Cable: USB

Tripod:

Tripod material: Stainless steel

Tripod weight: 5 kg

General:

Colour: Black-red

Total weight: 20 kg

Series: GEM

GoTo control: WiFi

Alignment method: 3-Star Alignment, 2-Star Alignment, 1-Star Alignment

Autoguiding: Yes

PEC correction: Yes

Tracking speeds: Sidereal, solar, and lunar

Polar Alignment: Easy Polar Alignment