Open Box Hobym Crux 320HDA Computerized German Equatorial Mount

Brand: Used Equipment

SKU : UT-15643

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  • This item is in "Open Box" condition, never been used, and comes with all original packaging.
  • This is a quiet and lightweight mount can hold up to 5 times its own weight with shaft and counterweights!
  • Perfect tracking for at least 10-minute exposures without the use of guiding.
  • The HOBYM 320HDA, like the rest of HOBYM mounts, has zero backlash with PEC assistance for effectively perfect tracking.
  • Extremely minimal cable management and quick to set up out of the box.
  • Includes TiTan Telescope Control System (TCS) which requires an AC power supply (not included).
  • You will also need a dovetail saddle plate (not included, see below) to mount either V-style or D-style dovetail plates.

Product Details


    The CRUX 320HDA weighs 55 lbs and is the most efficient equatorial mount in its class with the ability to mount 12+ inch reflective telescopes. It offers excellent performance for precise long focal length astrophotography due to its zero-backlash design, which is a major advantage of harmonic drives. Even without PEC, sub-arcsecond guided tracking is possible due to the instantaneous response to guide commands. The CRUX 320HDA does not require any counterweights for payloads up to 55 lbs (25 kg). This ensures lower costs and much greater freedom in transporting the mount to remote locations.  For higher payloads, only a small amount of counterweighting is needed, unlike other equatorial mounts that need counterweights equal or heavier than the payload.

    Because of this, the CRUX 320HDA can fulfill the role of both a mid-size high-precision portable mount or a high capability permanent observatory mount. It is an excellent choice for remote use due to its outstanding performance, rigidity, and design that can meet the needs of discriminating astroimagers. The harmonic drives have an estimated lifespan that exceeds 100 years with near continuous permanent usage.  No other mount motor design can boast this level of dependability. This incredible telescope mount is equipped with the most advanced telescope control system, the TiTaN1 TCS, to realize the highest ease of use and control among mobile systems – with or without a computer. The TiTaN TCS controller has high power and scalability and supports advanced wireless environments as well as connection via serial or USB. 

    The Crux 320HDA uses P-motion Control, one of the core features of the TiTan TCS, to control periodic errors (PE) in an innovative way. As a result, running the in-mount PEC routine while autoguiding will result in a periodic error value below +/- 3 arcseconds.  Autoguiding will further reduce this to a fraction of an arcsecond.


    Hobym Crux 320HDA Computerized German Equatorial Mount 

  • specifications

    ConditionOpen Box
    Database40000 Objects
    Drive TypeHarmonic Drive
    Head DesignEquatorial
    Instrument Capacity132 lb
    Mount Head Weight55lb
    PortsMicro USB Type B
    PortsUSB Type A
    Slew Speed1000x
    Slew Speed500x Sidereal
    Telescope ConnectionTakahashi Bolt Pattern
    Telescope ConnectionTakahashi Style 35mm Spacing
  • included items

    • Open Box Hobym Crux 320HDA Computerized German Equatorial Mount

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