iOptron GEM45 Mount GoTo LiteRoc: lightweight German equatorial mount with high payload capacity
The iOptron GEM45 is a German equatorial GoTo mount with a payload capacity of 20 kg (45 lbs), excluding counterweight, at a head weight of less than 8 kg. The CNC-machined head combines the trusted GEM construction with the weight-saving technology from the CEM series.
This version is mounted on the LiteRoc stainless steel tripod: a complete setup for larger refractors, astrographs with filter wheel and guiding system, or a hefty catadioptric tube.
With head and tripod, the set remains portable enough for regular trips to dark locations.




GoTo, GPS, and heated handgrips
The Go2Nova 8407 hand controller contains over 200,000 objects and has a display heater for cold nights. The built-in GPS automatically sets the time and position.
Operation from the computer runs via USB; wireless operation with SkySafari or ASCOM is possible with the optional iStarFi WiFi module. Autoguiding via the ST-4 port.

Light, stiff, and tidy
Silent stepper motors, a periodic error under plus or minus 7 arcseconds with PPEC, and internal cable management that prevents snagging during rotation.
The 6-inch saddle accommodates Vixen and Losmandy rails; the large locking levers also work with gloves.

Built-in iPolar
The iPolar electronic polar finder is a standard feature: align on your laptop screen, even without a clear view of Polaris, faster and more precise than optical methods.
Included
- GEM45 mounting head with built-in iPolar
- Go2Nova 8407 control pendant with display heating
- LiteRoc stainless steel tripod
- 5 kg counterweight with counterweight clamp
- Network adapters and cables
Featured accessories
Add the iStarFi WiFi module for wireless control and the GEM45 transport case for safe transport.
For whom yes and for whom no
- ✓ Astrophotographers looking for a lightweight German equatorial mount up to 20 kg
- ✓ Who upgrades from a GEM28 or comparable mount
- ✗ Heavier setups above 20 kg: choose a CEM70 instead
- ✗ If you want to photograph without autoguiding: choose the GEM45-EC
Specifications
| Type | German equatorial GoTo mount |
| Carrying capacity | 20 kg (45 lbs), excluding counterweight |
| Head of weight | Less than 8 kg |
| Periodic error | Less than plus or minus 7 arcseconds, PPEC |
| Manual | Go2Nova 8407 with display heating, over 200,000 objects |
| Pole finder | iPolar electronic, built-in |
| GPS | Built-in |
| WiFi | Optional via iStarFi module |
| Saddle | Double 6 inch, Vixen and Losmandy |
| Counterweight | 5 kg |
| Tripod | LiteRoc, stainless steel |
| Nutrition | 12 V DC |
You can find more mounts and accessories for this merk at the iOptron merk page.





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