Stock photos provided by the manufacturers may not represent the actual item. Please verify this picture accurately reflects the product described by the title and description before you place your order.

Losmandy GM-8 Gemini 2 Equatorial Mount w/LW Tripod

5.0 out of 5 stars
2 customer reviews

Price: $2,495.00


  • Manufacturer: Losmandy
  • MPN: GM-8 G
  • SKU: GM-8 G
  • Availability: Ships from Warehouse / Call or Email for Availability

SPECIFICATION: R.A. / DEC. AXIS

  • 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 stainless steel worm-heat treated and ground.
  • Variable slip clutch, both axes. One knob design.
  • 1.250" diameter aluminum shafts.
  • Fully locking, unique tangent arm design altitude adjustment, 0-64 degrees, large knob for easy alignment.
  • Laser engraved latitude scale in 2 degree increments.
  • Single knob azimuth control, bi-directional +/- 8.5 degrees.
  • 3.500" diameter laser engraved setting circles 6 minute R.A. / 2 degrees DEC. R.A. circle engraved for Northern and Southern Hemisphere.
  • Porter slip ring design.
  • 160 oz/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 interchaning of any tube assembly, reducing the need for DEC weights.
  • Removable stainless steel weight shaft w/safety knob.
  • 7 lb counterweight.
  • 11 lb and 21 lb. extra counterweights available.
  • Through the axis polar scope, works in Northern and Southern hemisphere. Polar scope optional.
  • Instrument weight capacity 30 lbs.
  • Equatorial head weight 21 lbs.


LW TRIPOD

  • All machined aluminum, black anodized.
  • Tripod height, adjustable from 27" - 43"
  • Fold-up tripod design for easy transporting.
  • Tripod weight 15 lbs.


DUAL-AXIS ELECTRONICS

  • Diamond push button pattern.
  • R.A. and DEC. reversing switches.
  • Three guiding rates; 30%, 50% and 2x sidereal rate.
  • Three setting rates; 4x, 8x, 16x sidereal rate and super fast 32x HST (high speed transfer).
  • 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 for easy access.
  • Small hand control box for comfortable use.
All heights are to top of tripod. Add 9" @ 34 degrees to center of Dec.-R.A. junction. Add 6" from Dec.-R.A. junction to top of saddle.

GEMINI 2 FEATURES

  • 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
  • For Losmandy GM8, G-11 & Titan mounts
  • Custom mount support using the Programmable Gear Rate function
  • 8°/sec Slew Rate (GM8)
  • 0.5 arcsec positional accuracy
  • DC Servos for improved accuracy with higher torque 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
  • English, French & German displays
  • Over 40,000 objects
  • 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
  • Firmware upgrade via internet
  • PEC correction
  • Auto-Guide port (TTL)
  • Dual 12~18V DC input/output (3.0A)







Customers Who Bought This Product Also Bought


Customers Reviews

Total 2 reviews
5.0 out of 5 stars

Share your opinion with other customers

Write a review

Most Helpful Customer Reviews

Solid well designed goto mount - needs better tripod

By Michael Corrieri on October, 16th 2009

After a small learning curve I love my Losmandy GM-8 Gemini mount. The Gemini system is very accurate, and allows using up to 250 alignment objects - increasing the precision manyfold. The mount is well designed, and extremely smooth tracking. The stability could be enhanced by a better tripod - the G-11 tripod is an excellent match for this mount. The GM-8 tripod is pretty wobbly - although you can stablize it by torquing the bolts. Overall I would say this is one of the better mounts available, bringing a great Goto system to a lightweight, sturdy, accurate, and very smooth mount.

A Good quality Mount!

By James A. Edwards on October, 16th 2009

I opted for a GM-8 as a solid EG mount for my newly aquired 120mm refractor...Having owned 2 G-11s one not being a go-to, I decide to upgrade to the Gemini as I enjoy having this option...First thing out of the box was its quality...Black polished aluminum, machining was exceptional and overall a solid well built mount...The go-to took some getting used to but worked very good then when coupled with a lap top, I had it working flawlessly...My only complant is the added cost for accessories...They all serve a very good purpose but should have been include...Overall a very good mount and a wise investment! J.E.

Share your opinion with other customers

Write a review