Losmandy GM-8 Equatorial Mount with Tripod

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Losmandy GM-8 Equatorial Mount with Tripod

If you would like a good equatorial mount that can handle your observing and imaging requirements, the Losmandy G-8 is definitely worth a look. This heavy-duty digital mount is machined of aluminum and stainless steel, utilizes all stainless steel hardware and has a load capacity of 30 pounds.

The telescope attaches to the mount via a dovetail bar bolted to the bottom of the telescope.


The various parts that make up the Losmandy GM8 Equatorial Mount:

Once the telescope is set up, you will need to point it at various locations to observe different objects. Unlike other mounts, the Losmandy mounts have a clutch system. To make rough adjustments, loosen the R.A. and DEC clutch knobs slightly and move the telescope in the desired direction. The R.A. clutch knob is near the Polar Axis Finder while the DEC clutch knob is at the top of the counterweight bar. How tight should the clutch knobs be? You set the clutch knobs to the friction you like. When you want to move the telescope, all you do is grab the telescope and move it to its new position.

Note: Before you attach the optical tube, make sure that the declination and right ascension clutch knobs are tight. This will ensure that the mount does not move suddenly while attaching the telescope.

Losmandy GM-8 Equatorial Mount and Tripod Specifications

  • 2.812-inch diameter, 7075 aluminum worm gear, 180 tooth.
  • Dual supported, ball bearing housed stainless steel worm-heat treated and ground.
  • Variable slip clutch, both axes. One knob design.
  • 1.25-inch diameter aluminum shafts.
  • Fully locking, unique tangent arm design altitude adjustment, 0 to 64-degrees, large knob for easy alignment.
  • Latitude scale in 2-degree increments.
  • Single knob azimuth control, bi-directional plus or minus 8.5-degrees.
  • 3.5-inch diameter setting circles scale, 6 minute R.A. / 2-degrees DEC. R.A. circle engraved for Northern and Southern Hemisphere.
  • Porter slip ring design.
  • 160-ounce/in stepper motor, 1.0 arc sec. step.
  • Spit Dovetail saddle-plate design. Accepts "D" series dovetail plates. Dovetail plate drops in and locks allowing for interchanging of any tube assembly, reducing the need for DEC weights.
  • Removable weight shaft w/safety knob.
  • 7-pound counterweight.
  • Through the axis polar scope connection, works in Northern and Southern hemisphere. (Polar scope optional.)
  • Instrument weight capacity 30-pounds.
  • Equatorial mount head weight 21-pounds.
  • Folding Tripod: Aluminum, height adjustable from 27-inches to 43-inches. Weight 15-pounds.
  • Dual-Axis Go-To Electronics: Quartz tracking rates: sidereal, solar, lunar, king. Periodic Error Correction (PEC). Programmable DEC. Backlash Compensation (TVC). Control panel dimmer.
  • Accepts auto-guider systems.
  • Northern and Southern Hemisphere operation.
  • 12 volt DC, 500mA power use.
  • Tiltable control panel and Small hand control box.
  • All heights are to top of tripod. Add 9-inches at 34-degrees to center of Dec. to R.A. junction. Add 6-inch from Dec.-R.A. junction to top of saddle.
  • Setting circles for your celestial coordinates.



Counterweights7 lb.
Hand Controller includedLosmandy Motor Controller
Head DesignGerman Equatorial
Instrument Capacity30 lbs
Latitude Range14 degrees to 64 degrees
Leg Length27" to 43"
Mount ElectronicsMotorized/ Dual Drive
Power Consumption12V 2A max
Power Supply includedDC Battery Adapter
Saddle WidthD Series
Telescope ConnectionLosmandy Style
Tracking ModesEQ North & EQ South
Tracking RatesLunar & Sidereal & Solar
Tripod or Pier includedYes
Warranty1 Year Warranty
Weight Capacity30 lbs.
Weight of Head21 lbs.
Weight of Tripod15 lb

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Ask a Question
  • Will the GM8 accept a Vixen VMC 200L telescope?

    Yes, the current version of the GM8 includes a dual D/V saddle and so the VMC200L telescope will be able to mount without any adapters needed. You may want to consider an additional 7 or 11 lb counterweight, depending on how much additional weight you wi