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G53F Friction Drive German Equatorial Mount
G53F Friction Drive German Equatorial Mount Weave/Design

G53F Friction Drive German Equatorial Mount

Product Number: GTD-G53F
6.6 lbs. (3kg) Counterweight

13.2 lbs. (6kg) Counterweight

Tripod

Transport Case

Polar Scope

No-Flip Pier Extension

Pier Adapter

QTY    
Price: $7,700.00
The Gemini Telescope Design G53F Friction Drive German Equatorial Mount tracks the stars with the highest precision in its category. Based on GTD's Friction Drive System (without gears) is the perfect solution for amateur or professional astrophotographers working in the field and for small to medium observatory use, operated locally or remote.

What are the advantages over the gear worm based system?

GTD's friction based mounts have no backlash at all, guide perfectly even in DEC, enable longer autoguiding exposures (5-10 sec). Their special wear resistant design keeps its performance over time. All these characteristics and many others together with its low weight make the G53F Friction Drive German Equatorial Mount the ideal astrophotography mount in the field or in the observatory.

Video below features the G53F with a 30-cm f4. Tube made from carbon, length 43 inch (110cm), total weight 57.3 lbs. (26 kg).



Main features of the German Mount G53F

  • Encoder based friction drive system
  • PULSAR 2 based drive system
  • Real Time PEC function to keep the target within cca 1,5″
  • Absolute position reference for recovery after system breakdown
  • Can be separated in two parts (4 screws), the total weight is 44 lbs. (20 kg)
  • 100 lbs. (45 kg) payload
  • Integrated Losmandy (D-series) dovetail saddle (exchangable)
  • Sidereal, Lunar, Solar and 3 custom tracking rates
  • Up to 4.5 deg/sec GoTo speed
  • LX200 (most commands) and ASCOM compatible
  • Reference stars, M, NGC, IC,  and custom programmable database
  • Smart meridian flips (for robotic mode and efficient goto)
  • Parking also via external switch (e.g., cloud detector) – when the PC breaks down
  • Real time refraction correction (for tracking and goto)
  • 12-18 VDC operation, 1A consumption
  • Built in GPS reciever in the hand controller
  • Free firmware updates, language versions and many other goodies
  • Accurate 12×30 polar finder with illumination (optional)
  • 5 years of warranty for mechanical parts and 1 year for all electronic parts



Stable GHS MkII tripod

The GHS MkII tripod remains the ideal solid base for G53F mount. It ensures that stability is not compromised by wobbling tripod legs. The MkII model has 3.1 in. (8 cm) independently adjustable legs and adjusts from 35 in. to 51 in. (90-130 cm). The Qlock system saves you a lot of frustration in the dark! You just put the mount head on, turn a hand knob on the pier and it’s done. The legs fold completely for easy transport and storage . GHS MkII tripod weights is only 33lbs. (15 kg)!

The geometry and materials of this tripod represent the highest standard in vibration suppression and torsional stiffness.



Gemini polar scope HP2 – Easy polar alignment

Precise polar aligment in a few minutes? Yes, with the original Gemini HP2 polar scope! This polar scope uses three stars for alignment for high precision and freedom from reading star charts. You just find the position when the three circles on the reticle match the stars. It is more accurate than traditional “Star Drift” methods. The large 30 mm objective lens lets you see enough stars for a precise alignment. The 12x magnification provides the accuracy needed for GoTo and astrophotography.



Gemini No-Flip pier extension – Uninterrupted astrophotography for compact telescopes


One of the most unique accessories for the G53F is a pier extension allows you to take images uninterrupted, even when the object crosses the meridian. The extension works with refractors up to 5″ or reflectors up to about 10″. The elevation range is 35-50 degrees. Adds 15 in. (390 mm) to the pier (9.5 in. (241 mm) more than the original base) and weights 11 lbs. (5 kg). Robust aluminum construction that will not compromise stability. The RA head can be exchanged in 5 minutes between the original and the extended base.



PULSAR2 GoTo Controller
 
• Pulsar2 accepts servos or steppers
• Input 12-18VDC, output 2×4 A
• Independent incremental encoders can be added
• Connects to the PC via USB, Serial or LAN ports
• Allows direct access from the internet (Internal web server)
• Has much more memory for databases
• Steppers are driven in 2 speed dependent modes, ensuring silent and silky smooth tracking AND high goto speeds. Uses 8bit microstepping
• AAG Cloud watcher compatible direct parking via the AUX port
• It has a foolproof initializing menu to help setting DEC motor rotation and finding the reference star.
• The C2A planetarium program offers embedded support for Pulsar2 and a precise polar alignment tool also. No Ascom driver is needed for this combination.
• Supports friction drives, calculates the total reduction automatically
• Upgrading the firmware takes 20 seconds and all user settings in the menu are protected.



The Pulsar2 Hand Controller

Features an internal GPS, large display and graphic aid for initializing the mount. Information like the active speed (goto, guide or other), tracking mode (sideral, lunar, planet, custom, etc), low voltage are always visible. Date and time are also shown. Time and latitude and longitude are updated every time Pulsar2 is switched on. The joystick works fast and reliably. Red map light function.


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