Best harmonic drive telescope mount value today

So what’s it gonna be - which harmonic drive mount from this ever-growing buffet of beltless wonders are you going to throw your wallet at next? You’ve got more options than a possum in a peach orchard. iOptron, ZWO, Pegasus, Hobym, Rainbow Astro, Lacerta, and now even mystery brands from deep in the digital bowels of Alibaba, like the Jouer 14, Jouer 17, even the EM31 Pro - all lined up like Sunday church pies. And every one of them swears up and down it’s the last mount you'll ever need.

Now before you start clicking "Buy Now" on a mount named something like “Sky-Slayer Super Pro Deluxe EQ10000”, let’s slow this wagon down and have ourselves a good old-fashioned sit.

Lining up the options for the best harmonic drive telescope mount value, with Damon Scotting

Damon Scotting lines up the AM5, Jouer 14, Jouer 17, and EM31 Pro side by side to compare. While the AM5 enjoys legendary status as the best selling strain wave mount, the Jouer models shine for their budget-friendly prices. But the real surprise is the EM31 Pro, which, despite being the oldest among them, remains largely unknown in the mainstream astronomy community.

What makes the EM31 Pro particularly intriguing is that it shares many capabilities with the AM5 but at a lower price point and with additional features. While most people are familiar with the AM5’s reputation, few realize that the EM31 Pro was essentially the “OG” of its class, offering a robust and versatile setup for both beginners and experienced users.

The AM5 is known for supporting a 33lbs payload without a counterweight and up to 44 lbs with one. Weighing under 13 lbs, it’s a game changer in lightweight, heavy-lift astrophotography.

The EM31 Pro matches these specs, 33 lbs without counterweight, 44 lbs with, but adds versatile accessory options. A notable advantage is the ability to mount extra imaging gear, such as a ball head for cameras or azimuth bracket attachments for visual observing, all without sacrificing performance. These extras turn it into a flexible powerhouse.

The Jouer 17 and Jouer 14, while more affordable, come with trade-offs. The Jouer 17 offers 28 lbs (no counterweight) or 39 lbs (with counterweight), while the Jouer 14 handles 17 lbs (no counterweight) or 28 lbs (with counterweight). Although they impress with performance for the price, they lack the additional features and refined design found in the higher-end models.

A major theme in the comparison is the balance between value and support. ZWO, the maker of the AM5, provides an extensive support network and a polished app, making it attractive for beginners and veterans alike. Buyers can count on a large online community and responsive customer service.

By contrast, the EM31 Pro, often imported through platforms like AliExpress, lacks the same institutional backing. Owners should be ready for more self-reliance if issues arise. Yet, for those comfortable with DIY troubleshooting or experienced with OnStep software, the EM31 Pro’s raw value becomes hard to ignore.

Damon shared a six-month hands-on experience with the EM31 Pro, reporting zero faults and consistent performance even under challenging conditions. Quiet operation, competitive slew speeds, and impressive payload handling earned high marks over time.

One critique raised was the basic nature of the OnStep control interface compared to ZWO’s more polished app, which offers richer UI elements and integrated experiences. There’s a desire to see something closer to platforms like Seestar, where object previews and previous imaging examples make the astrophotography process even more engaging.

The Jouer 17 and Jouer 14 are praised as budget-friendly options that punch above their weight. The Jouer 17, in particular, mirrors the earlier AM5 model at half the price. While these mounts don’t come with many extra features, they reliably track the sky, carry hefty payloads, and offer an excellent entry point into the world of strain wave mounts.

Minor downsides were noted, such as the Jouer 14’s limited dovetail compatibility (Vixen only) and the lack of a DC power port, which means needing two separate 12V power sources for the mount and additional gear. Even so, the overall verdict is positive, especially for those seeking maximum performance on a minimal budget.

Price-wise, the AM5 comes in at around $2,299, while the EM31 Pro is slightly lower at $2,129. The Jouer 17 is roughly $1,000, and the Jouer 14 lands around $800 or less. Although importing from China may add taxes, the Jouer models remain unbeatable deals for those looking to stretch every dollar.

Mount weights

Specifications, Price, and Details

ZWO AM5

• Payload (no counterweight): 33 lbs
• Payload (with counterweight): 44 lbs
• Weight: <13 lbs
• Price: ~$2,299
• Notable: Best support, robust app, huge online community
   

EM31 Pro

• Payload (no counterweight): 33 lbs
• Payload (with counterweight): 44 lbs
• Weight: Similar to AM5
• Price: ~$2,129
• Notable: Extra accessory compatibility, OnStep software, great value
   

Jouer 17

• Payload (no counterweight): 30 lbs
• Payload (with counterweight): 39 lbs
• Price: ~$1,000
• Notable: Strong performance, no-frills design
   

Jouer 14

• Payload (no counterweight): 17 lbs
• Payload (with counterweight): 28 lbs
• Price: ~$800
• Notable: Super compact, Vixen dovetail only, no DC port
   

What is the BEST harmonic drive telescope mount?

The Conclusion?

In terms of recommendations, if the budget allows, the EM31 Pro emerges as the clear winner. It offers everything the AM5 does, with bonus flexibility and a more attractive price. For those focused on cost savings, the Jouer 14 is the standout choice, especially when paired with lightweight refractor setups.

This review underscores how much the harmonic drive mount market has evolved. What was once a niche luxury is now accessible to a wider range of astronomers, thanks to innovation and competition. The technological leap these mounts represent, from avoiding star trailing to supporting complex imaging rigs, justifies their price points.

For today’s astrophotography buyer, the takeaway is simple: carefully match needs to gear. For polished software and strong support, the AM5 is a solid choice. For unbeatable value and flexibility, the EM31 Pro is a hidden gem. And for the budget-focused, the Jouer 14 delivers surprising performance for its price.

Buy the EM31 Pro