Losmandy G11GT Equatorial Mount with Tripod and Gemini 2 Computer Drive

Losmandy G11GT Equatorial Mount with Tripod and Gemini 2 Computer Drive

Due to high demand and global product shortages due to the pandemic, please call for availability.

Note on price: Due to the weight and sizes of the various shipping boxes, these mounts are expensive to ship from California. Please allow an additional $220.00 USD (plus applicable tax) on top of the price listed above. We will add this charge to your order when we process your payment.

Note on power supply: If you are powering from the AC mains, we recommend Losmandy's 15 volt power supply. This will ensure reliably sufficient current that a 12 volt supply may not quite provide.

The upgrade from the G-11 to the new G11GT accommodates a heavier payload of 34kg (75 pounds.) The mount features a detachable declination axis and more streamlined motor mountings.


  • Gemini 2 computer drive system with full color touchscreen hand controller locates and tracks objects automatically
  • Heavy duty, high capacity mount and precision gears are ideal for astrophotography
  • All machined aluminum and stainless steel, black anodized
  • All stainless steel hardware
  • DC Servos for improved accuracy with higher torque than stepper motors
  • Folding tripod leg design for easy transporting
  • Versatile split dovetail saddle-plate allows for the interchanging of any tube assembly
  • Fully locking, unique tangent arm design altitude adjustment with large knob for easy alignment

G11GT Specifications

  • Photographic instrument weight capacity 34 kg (75 lbs)
  • Tracking: +/- 5 arc sec. or better
  • Low temperature operation: -18C (0 F)
  • Equatorial Head Weight 28.1kg (62 lbs)
  • Splits into two pieces for transport: R.A. 19.9kg (44 lbs) and Dec. 8.2kg (18 lbs)
  • Removable counterweight shaft with safety stop; 1.25” diameter
  • Includes one 9.5kg (21 lb) weight
  • Split dovetail saddle plate design. Works with both Losmandy Style and Vixen Dovetails
  • Dovetail plate drops in and locks allowing for interchanging of any tube assembly - reduces the need for DEC weights
  • Off axis polar scope, works in Northern and Southern hemisphere (Polar Scope Optional)
  • 3.2kg (7 lb) and 5kg (11 lb) extra counterweights available

Specifications R.A. Axis

  • All machined aluminum and stainless steel, black anodized
  • Shaft 1.96” diameter stainless steel tubing, 0.250” wall thickness
  • Worm Gear 6.750” diameter, 270 tooth, 7075 aluminum - special coating
  • Worm precision ground brass
  • Single piece worm housing construction, double ended, ball bearing supported with adjustable preload
  • 5.062” diameter needle thrust bearings
  • 3.500” diameter sealed ball bearings
  • 3.100” diameter sealed ball bearings for worm gear
  • Fully locking, unique tangent arm design altitude adjustment, 12-70 degrees, large knob for easy alignment
  • Laser engraved latitude scale in 2 degree increments
  • Single knob azimuth control, bi-directional +/- 10 degrees, X/Y axis leveling bubbles
  • Variable slip clutch, 6.0” diameter one knob design
  • 360 degree DEC. axis rotation allowing for continuous photographing through the meridian
  • Fully enclosed R.A. worm gear
  • RA Axis weight 19.9kg (44 lbs)

Specifications Dec. Axis

  • All machined aluminum and stainless steel, black anodized
  • All stainless steel hardware
  • One 3.750” diameter needle thrust bearings
  • One 2.000” diameter needle thrust bearings
  • Two 1.500” diameter needle bearings
  • 5.625” diameter, 7075 aluminum worm gear, 360 tooth
  • Dual supported ball bearing housed ground High Precision Brass Worm
  • Variable slip clutch, one knob design
  • 1.250” diameter stainless steel shaft
  • DEC. Axis weight 8.2kg (18 lbs)

Gemini 2 Specifications

  • Full Color Graphic Touch Screen - clearly displays all functions
  • Classic four-button pattern for guiding, centering, moving and slewing on both the touch screen and a tactile membrane on the rear
  • Support for the original four-button controller
  • 8°/sec slew rate (GM8 model)
  • 0.5 arcsec positional accuracy
  • GPS: sold separately
  • Ports:
    • ST4 autoguide port
    • Ethernet 10/100 with full IP function permits operation from anywhere using a browser, ASCOM, or app over the web or serial port
    • Two USB ports; Virtual COM to PC, ASCOM or planetarium program
    • Port E - future high-res encoders
    • Port F - multi-function serial; A/D I/O
  • Non-Volatile Memory and Real-Time Clock
  • Languages: English, French & German
  • Over 40,000 objects
  • Firmware upgradable
  • PEC correction
  • Programmable Dec. Backlash Compensation (TVC)
  • Power: 12~18v DC input 3.0A
  • 12v accessory power jack

Weights and Dimensions

  • Payload Capacity: 34kg (75lbs)
  • Weight of Equatorial Head RA Axis: 19.9kg (44 lbs)
  • Weight of Equatorial Head Dec Axis: 8.2kg (18 lbs)
  • Weight of Counterweight: 9.5kg (21lb)
  • Weight of Tripod: 15.9kg (35lbs)
  • Total Weight: 53.5kg (118lbs)
  • Height of Mount: 43cm (17") with latitude set to 34°
  • Height of Tripod: 84cm - 122cm (33" - 48")
  • Total Height: 127cm - 165cm (50" - 65") with latitude set to 34°