Hobym Crux 320HDA Computerized German Equatorial Mount - Long Body

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Hobym Crux 320HDA Computerized German Equatorial Mount - Long Body



The CRUX 320HDA-LG is the “Long-Body” version of the CRUX 320HDA-LG mount.  By adding ~6” (15cm) to the length of the RA axis, the mount does not need to perform a meridian flip for most telescopes unless pointed at a target near the southern horizon in the northern hemisphere.  This allows horizon-to-horizon imaging without interruption for the most effective use of imaging time.


The CRUX 320HDA-LG weighs just a bit over 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-LG 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-LG 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 - Long Body




Database40000 Objects
Drive TypeHarmonic Drive
Head DesignGerman Equatorial
Instrument Capacity132 lbs
Mount Head Weight55lbs
PortsMicro USB Type B
PortsUSB Type A
Power Consumption12V 2A
Slew Speed1000x
Slew Speed500x Sidereal
Telescope ConnectionTakahashi Bolt Pattern
Telescope ConnectionTakahashi Style 35mm Spacing
Weight Capacity132 lbs



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