Used Losmandy G-11 Gemini 1

  • Sale
  • $1,599.00
  • Regular price $3,395.00



Contact use for ordering information.

Condition: Used, tested, AS-IS

This is from an estate.  Estimate 2001 original purchase date.  It is in well-used but good condition. This GM-11 is an original Gemini 1 system with Losmandy dovetail.  

Mount powers up, motors work. (We have not investigated how to use the Gemini 1 system.) No further testing was done. No shipping boxes, in store pickup only. Specs below are from the Losmandy website, and may not reflect this specific model year. Includes dual-saddle losmandy bracket, Pelican hard case for the mount head, two 21 lbs counterweights. Also includes an SBIG autostar system, not tested, as is. Includes uninstalled Byers worm and gear upgrade components, and installed encoders.

The Losmandy G11G Equatorial Mount and Tripod is one of the most precise and finely crafted telescope mounts available today. The Losmandy G-11 Mount is a beautifully machined mount made of aluminum and stainless steel. This mount provides astrophotographers with a solid platform to mount their mid-to-large-size Schmidt Cassegrains and Refractors along with the other instruments that constitute their astrophotography rig.

Losmandy G-11 Equatorial Mount Highlights:

  • The Losmandy G-11 Equatorial Mount has a 60 lb weight capacity for imaging, and a 75 lb. weight capacity for visual applications
  • Designed, machined, assembled, and performance-tuned in the USA
  • Laser engraved latitude scales and setting circles
  • The Losmandy G11 weighs 92 lb including the 21 lb counterweight
  • 0-68º latitude range
  • Ships with OPW one-piece worm block on both axes
  • Comes with tucked motors for a streamlined look and easier transport
  • Spring-loaded worm added to the RA and DEC axis
  • The G11G includes the Gemini GoTo System
  • This version of the Losmandy G-11 includes the FHD Heavy-Duty Tripod 
  • The FHD weighs 35 lb

Losmandy G11 Specifications:

  • All machined aluminum and stainless steel, black anodized
  • One 3.750" diameter needle thrust bearing
  • One 2.000" diameter needle thrust bearing
  • Two 1.500" diameter needle bearings
  • 5.625" diameter, 7075 aluminum worm gear, 270 teeth
  • Dual supported, ball bearing housed ground High Precision Brass Worm
  • Variable slip clutch, both axes with one-knob tension design
  • Fully locking, unique tangent arm design altitude adjustment, 14°-64°, large knob for easy alignment (8-68° possible, with small modification)
  • Laser engraved latitude scale in 2° increments
  • Single knob azimuth control, bi-directional ± 8.5°
  • 5.0" diameter laser engraved setting circles, 4 minute R.A., vernier reading to 1 minute / 1° Dec., vernier reading to 0.1°, R.A. circle engraved for Northern and Southern Hemisphere
  • Porter slip ring design
  • DC Servos for improved accuracy with higher torque than steppers
  • All Losmandy equatorial mounts have been hand-tuned at the factory for optimal performance
  • Dovetail saddle-plate fits both "D" Losmandy and "V" Vixen-style dovetails and allows for the interchanging of any tube assembly; this reduces need for Dec weights
  • Removable stainless steel weight shaft w/safety knob
  • Includes two 21 lb counterweights
  • 7 lb and 11 lb extra counterweights available as options
  • Through-the-axis Polar Scope capability, works in Northern and Southern Hemisphere; Note: the Polar Scope is optional
  • Verified with most modern astronomical/astroimaging systems including Maxim DL, NINA, SGP, Voyager, TheSkyX, Stellarium, Sky Safari, Cartes DuCiel, APT, BYEOS, Nebulosity, etc.
  • Instrument weight capacity: 60 lb. imaging, 75 lb. visual
  • Equatorial head weight: 36 lb


The Losmandy Gemini GoTo System is a servo motor based computerized positioning system for the Losmandy Mounts.

The Losmandy G11 Mount and Tripod with Gemini Go-To Drive is a top-performing astronomical instrument with an updated, modern drive. If you are an astrophotographer looking for an ideal mount to support your telescope, the Losmandy G-11 is for you.

SKU: U2202-MD-G11