Losmandy GM8 Equatorial Mounting

The GM8 is the smallest of the Losmandy range of Equatorial mountings. It features the same high build quality as its larger brother the G11 but in a lighter and more portable form.

Like the G11 the GM8 is available with the Gemini 2 mini controller or Losmandy's dual axis drive (non goto) system.

The GM8 is ideal for customers wanting a high quality and well engineered portable GEM for both visual use and astrophotography.

The mount features a 2.812 diameter, 7075 aluminum worm gear with 180 teeth.

The GM8 features a dual supported, ball bearing housed ground High Precision Brass Worm. 3.5 diameter laser engraved setting circles, 6 minute R.A. / 2 degrees DEC.

The R.A. circle is engraved for Northern and Southern Hemisphere.

The Dovetail saddle-plate fits both "D" Losmandy Style Dovetail or Vixen Style Dovetail. Allows for the interchanging of any tube assembly-reduces need for DEC. weights.

Includes a fully locking, unique tangent arm design altitude adjustment, 6-68 degrees with large knob for easy alignment.

Laser engraved latitude scale in 2 degree increments.

Also included is a removable stainless steel 1-1/4 inch diameter weight shaft w/safety knob and
7 lb counterweight.

11 lb and 21 lb extra counterweights available.

GM8 SLT - Dual Axis Drive No Tripod
GM8 S - Dual Axis Drive HD Tripod Included
GM8 GLT - Gemini 2 Mini Controller No Tripod
GM8 G - Gemini 2 Min Controller HD Tripod Included

The Gemini 2 Mini Controller is highly recommended. It offers a huge range of functionality as befits a modern high performance drive controller.

It is internally powered by a battery and thus will not lose synchronisation on the sky in the event of a power cut.

Other features include:

Full Color Graphic Touch Screen clearly displays all functions
Auto color change from dawn to dusk
Classic four-button pattern for guiding, centering, moving and slewing on both the touch screen and a tactile membrane on the rear (Click for REAR VIEW)
1 star alignment
Multi star modeling for accurate pointing on both sides of meridian
30 arcsec all sky positional accuracy or better
For Losmandy GM8, G-11 & Titan mounts
Custom mount support using the Programmable Gear Rate function
Selectable GOTO, Slewing, Centering and Guiding Rate
GOTO rates up to 8 degs/sec (GM8)
DC Servos for improved accuracy with higher torque and smoother tracking than stepper motors
GPS-compatible with optional receiver
Stand-alone system. No PC required!
Ethernet 10/100 with full IP function permits operation from anywhere using a browser, ASCOM, or APP over the web or serial port
Non-Volatile Memory and Real-Time Clock
Internal Battery keeps settings and preferences stored between uses
English, French, Spanish & German displays
Over 40,000 objects
Two USB ports; Virtual COM to PC, ASCOM or planetarium program
Port F - multi-function serial; A/D I/O
Firmware upgrade via internet
Permanennt PEC correction
Auto-Guide port (TTL)
Auto switch tracking rates
User define Park function
Search function
Identify function
Polar Align Assist
Polar Axis Correction
User define limit stops
Permanent Dec Backlash compensation
Electronic Balance Graph
Sidereal, King, Lunar, Solar, Terrestrial, Closed loop and Comet/user defined tracking rates
Synchronize function
Coordinate input
Bookmark set for your favorite objects
All objects displayed on hand controller are visible.

Click hereto see Gemini 2 FAQ

Check out the Losmandy Youtube channel with lots of instructional video's

Single knob azimuth control, bi-directional +/- 8.5 degree.

Technical Specs:


All machined aluminum and stainless steel, black anodized.
All stainless steel hardware.
One 2.100 diameter needle thrust bearing.
One 2.000 diameter needle thrust bearing.
Two 1.500 diameter needle bearings.
2.812 diameter, 7075 aluminum worm gear, 180 tooth.
Dual supported, ball bearing housed ground High Precision Brass Worm.
Variable slip clutch, both axes. One knob per axis design.
Porter Slip Ring Design
1.250 diameter aluminum shafts.
Through the axis polar scope mounting, works in Northern and Southern Hemisphere. Polar scope optional.
Instrument Weight Capacity 30 LBS
Equatorial head weight 21 lbs.