ZWO AM5 Harmonic Equatorial Mount

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  • Strong Load Capacity:
    -Without Counterweight: 13kg
    -With Counterweight: 20kg
  • Multi-Function: Equatorial Mount, Alt-Az Mount
  • Hand Controller + App Control: WiFi Connection, Live Star Database
  • Precision Control: Harmonic drive speed reducer + synchronous belt
  • Lightweight Design: No Counterweight Required
OUR PRICE $3,699.00

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    The ZWO AM5 Harmonic Equatorial Mount

    The ZWO AM5 Harmonic Equatorial Mount has been designed specifically for astrophotography enthusiasts, and is now the epitome of portability. With its ability to effortlessly accomodate imaging setups weighing up to 13 kilograms sans the need for counterweights, this mount can handle small to midsize telescopes and cameras with ease. For those seeking even greater capacity, the optional counterweights expand the load-bearing capability to a remarkable 20 kilograms, all while maintaining a very light 5-kilogram profile. Traditionally, 20kg will require a whopping huge mount, weighing itself 20kg and more, which was too heavy and bulky to move around. Unlike conventional equatorial mounts that necessitate bulky counterweights, which often prove challenging to maintain equilibrium in both right ascension (RA) and declination (DEC) when changing the pointing direction, the ZWO AM5 revolutionises the game. 

    This mount incorporates the advanced Harmonic Drive speed reducer and a meticulously designed Synchronous belt system. The result is an unparalleled level of precision control, boasting a remarkable 300:1 reduction ratio for your imaging rig. Achieving guiding accuracy within the range of 0.5 to 0.8 arcseconds, the ZWO AM5 offers an exceptionally low periodic error, silky-smooth gearing, and impressive torque capabilities, rendering the need for cumbersome counterweights, commonly associated with traditional German equatorial mounts, obsolete.

    Astronomy-Dedicated Harmonic Drive Speed Reducer

    ZWO Strainwave Gearing System

    The result of their innovative technology that answers to all dedicated astrophotographers' needs and wants is a mount that boasts very low periodic errors, smooth gearing and high torque. The AM5 is born for astronomy.

    To know that your mount has been vigorously tested and not subject to quality control errors, ZWO measures each mount and equips it with the exclusive PE curve, aseen in the included performance chart included in each package. The X-axis represents the drive angle. The Y-axis represents periodic errors. The periodic error is stably controlled within±20 arc seconds. You can be assured that your mount is tested to succeed. 

    Graphic of ZWO AM5's Periodic Error

    Graphical Insights:
    To achieve this level of precision, a unique PE curve for each mount. The X-axis of this graph represents the drive angle, while the Y-axis vividly portrays periodic errors. Rest assured, our mounts consistently maintain a stable control of periodic errors within an impressive range of ±20 arc-seconds. This commitment to excellence guarantees that your astrophotography experience will be nothing short of exceptional.


    Full Specifications

    Mount type Equatorial mount
    Mount mode Equatorial mode / Altazimuth mode
    Drive Harmonic drive+ Synchronous belt (Reduction ratio: 300:1)
    Periodic error <±20 II
    PE duration 432 S
    Drive (RA) Harmonic NEMA42 stepper motor+ Model No. 17 (Reduction ratio: 100:1) + Brake
    Drive (DEC) Harmonic NEMA35 stepper motor (Reduction ratio: 100:1) + Model No.17
    Load capacity 13kg without counterweight, 20kg with counterweight
    Weight 5kg
    Latitude adjustment range 0°-90°
    Azimuth angle adjustment range


    Dovetail Dual Saddle (Losmandy & Vixen)
    Interface thread of counterweight shaft M12
    Stepper motor resolution 0.17"
    Max slew speed 6°/S
    Slew rate 0.5x, lx,2x,4x,8x,20x,60x, 720x, 1440x
    Power port DCS.5-2.1{12V-3A)
    Power consumption 12V / 0.386A {Stand by), 12V / 0.58A (Tracking), 12V / 1.SA {GOTO)
    Guide port ST4
    Communication interface USB/WiFi
    Zero position Mechanical
    Operating temperature 20°(-50°)
    Power failure protection Yes


    About ZWO Optical: Astrophotography has never been easier

    Established in 2011, ZWO Optical is a fast-growing global astro imaging camera powerhouse based in Suzhou China. They focus on building and innovating groundbreaking CMOS cameras such as the iconic ZWO ASI120MM Monochrome CMOS camera (the first-ever planetary CMOS camera to beat a CCD in the early 2010s). ZWO continues to pioneer new astrophotography technology with revolutionary features to capture exceptional quality of images of space that will last you a lifetime.

    Today, ZWO cameras are recognised by every passionate astrophotographer and are available in over 25 countries internationally.

    Product Code: ZWO-AM5

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    ZWO AM5 Harmonic Equatorial Mount - Mount Body ZWO AM5 Mount Body 1
    ZWO AM5 Harmonic Equatorial Mount - USB2.0 Cable 2m USB2.0 Cable - 2m 1
    ZWO AM5 Harmonic Equatorial Mount - Performance Sheet Performance sheet 1
    ZWO AM5 Harmonic Equatorial Mount - Quick Start Guide Quick Start Guide 1
    ZWO AM5 Harmonic Equatorial Mount - Hand controller Hand controller 1
    ZWO AM5 Harmonic Equatorial Mount - Hand Controller Cable Hand controller cable 1
    ZWO AM5 Harmonic Equatorial Mount - Storage Case Storage case 1
    ZWO AM5 Harmonic Equatorial Mount - Allen Key M6 and M4 Allen key (M6, M4) 1 each
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