Gemini Bt. - 2091 Etyek, Alsohegy u 7 -  Hungary Tel +36 70 332 7090 - astronomy@astronomy.hu
G53F - Friction generates...pinpoint stars
Wether you need a high capacity, high precision transportable equatorial head or want a perfect companion in your observatory, the G53F is the right choice. The G53F is easy to use. There are no clutch handles because the slip clutch is integrated into the drive gear. Just grab and rotate the telescope and stay syncronized with the sky.
The friction drive offers the highest possible torsional stiffness, silent, efficient and fast operation. Due to the strict dimensional tolerances of the mechanical parts it delivers outstanding tracking precision without any electronic trick. The mount responds to DEC autoguide corrections without delay.

What are the advantages over the gearworm?
  No backlash at all, guides perfectly,
   Longer autoguiding exposures (5-10sec)                            filter seeing effects,
   Wear resistent design keeps its   performance over time.

These characteristics together with its low weight make it the ideal astrophotography mount

For more details please download the manual or watch the video manual!
Main features of the G53F (uses exclusively Pulsar2 driver)
- Integrated slip clutches, encoder based friction drive system

- Can be separated in two parts (4 screws), the total weight is 20 kg

- 45 kg payload

- Integrated Losmandy rail interface (exchangable)

- Sidereal, Lunar, Solar and 3 custom tracking rates

- Up to 7 deg/sec GoTo speed

- Accurate 12x30 polar finder with illumination (optional)

- LX200 (most commands), PemPro and ASCOM compatible

- Reference stars, M, NGC, IC, Pk and custom programmable database

- Smart meridian flips (for robotic mode and efficient goto)

- Parking also via external switch (cloud detector) - when the PC breaks down

- Real time refraction correction (for tracking and goto)

- 12VDC operation, 1A consumption

- GPS connection for time and geographical position download (optional cable needed)

- Real time PEC with encoder (to be added, please inquire)

- Free firmware updates, language versions

- 5 years of warranty for mechanical parts, 2 year for electronics

- Absolute position reference for recovery after system breakdown

- 3 star Polar Alignment Aid (Alignmaster by Matthias Garzarolli)
The GHS MkII tripod remains the ideal solid base for your G53F. It ensures that stability is not compromised by wobbling tripod legs...The MkII model has 8 cm independent leg adjustment, d120x5mm  central pier, d 60x5mm legs and a legendary stability confirmed by many satisfied customers. The Qlock system saves you a lot of frustration in the dark - you just put the mount head on, turn a handknob on the pier and it's done.
The original polar scope Gemini HP2 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 30mm objective lens lets you see enough stars for a precise alignment. The 12x magnification provides the accuracy needed for GoTo and astrophotography.
Tripod interface
Prices in EURO
G53F with cables,(motor+encoder), cw. shaft 4250,00
Tranport case 100,00
GHS MkII Qlock tripod 990,00
Gemini HP2 Polar scope (illuminator not supplied) 180,00
Permanent setup adapter 80,00
Losmandy rail,  40cm long, 1cm thick, black Alu 50,00
Counterweight 8kg 130,00
Pulsar2 with Hand Controller 990,00
Shipping and tax is not included. You will pay 25% sales tax (EU orders only) that you can deduct and pay the rate applicable in your country.
Performance tests
Polar finder alignment
Tracking precision (60 min unguided, 1,5"/pixel)
Control a G53F remotely and feel how it works! Contact us to book your night!