Five Strain Wave Harmonic Mounts
Strain wave harmonic drive technology has transformed telescope mounts by virtually eliminating backlash and providing ultra-smooth, high-precision tracking. This is especially crucial for long-exposure astrophotography, where even minute tracking errors can compromise image quality. The design and innovative technology also allow higher payloads even without a counterweight. This can greatly simplify the setup process. In this review, we take a detailed look at five mounts that incorporate this advanced technology:
- ZWO AM5N Strain Wave Equatorial Mount
- Pegasus Astro NYX-101 Strain Wave Mount
- iOptron HAE43 Strain Wave AZ/EQ Dual Mount Head
- WarpAstron WD20 Strain Wave Direct Drive Mount
- Sky-Watcher Wave 150i Strain wave Mount Head
Each of these models is engineered to meet different operational needs—from robust, heavy-duty systems for deep-sky imaging to versatile, portable designs for on-the-go observation.
1. ZWO AM5N Strain Wave Equatorial Mount
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Overview & Features:
- Precision Tracking: Utilizes a state-of-the-art strain wave harmonic drive to nearly eliminate backlash. This high-precision tracking is ideal for long-exposure astrophotography where even slight errors can blur images.
- Integrated Sensor Feedback: Real-time sensors continuously adjust the tracking, maintaining smooth motion and compensating for drift during extended sessions.
- User-Centric Design: The interface is designed for intuitive operation, featuring straightforward calibration routines that cater to both beginners and experienced astrophotographers.
- Payload Versatility: Optimized for medium-weight setups, it supports a wide range of telescopes and imaging accessories.
Price:
- Priced at $1,999, the AM5N offers an attractive entry point for users seeking advanced tracking without a premium price tag.
Pros:
- Near-zero backlash ensures exceptional tracking precision.
- User-friendly interface simplifies setup and calibration.
- Versatile enough for both visual observation and imaging applications.
Cons:
- May require periodic fine-tuning to maintain optimal performance.
- The build, while precise, may not be as rugged as some higher-end, heavy-duty models.
Check out our full review of the ZWO AM5
2. Pegasus Astro NYX-101 Strain Wave Mount
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Overview & Features:
- Premium Engineering: Crafted with high-grade materials and an advanced strain wave system, the NYX-101 is built for maximum stability during long, demanding imaging sessions.
- Advanced Autoguiding Integration: Paired with sophisticated autoguiding systems, it reduces periodic error to less than one arcsecond, ensuring reliable deep-sky imaging.
- Environmental Adaptability: Features such as vibration damping and temperature compensation allow it to maintain precision even in variable conditions.
- High Payload Capacity: Its robust design supports heavier telescope assemblies, making it a preferred choice for professional astrophotographers.
Price:
- With a price of $2,960, the NYX-101 provides premium build quality and performance at a competitive cost for advanced users.
Pros:
- Exceptional build quality and durability under harsh conditions.
- Advanced tracking capabilities with integrated autoguiding.
- Superior performance for deep-sky and long-exposure imaging.
Cons:
- The higher price point may not suit budget-conscious enthusiasts.
- Its heavy construction can limit portability, making field use more challenging.
Check out our full review of the Pegasus Astro NYX-101
3. iOptron HAE43 Strain Wave AZ/EQ Dual Mount Head
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Overview & Features:
- Dual-Mode Versatility: Offers both Alt-Az and Equatorial configurations, allowing users to switch modes based on their observing or imaging needs.
- Backlash-Free Performance: Whether in Alt-Az or EQ mode, the integrated strain wave drive minimizes backlash, ensuring smooth, consistent tracking.
- Lightweight and Portable: Designed with portability in mind, the HAE43 is compact and easy to transport for field observations or travel.
- Seamless Software Integration: Compatible with popular telescope control software and includes integrated cable management to prevent interference during tracking.
Price:
- At $2,948, the HAE43 strikes a solid balance between functionality and cost, appealing to both beginners and intermediate users.
Pros:
- Flexible dual-mode operation adapts to different observational setups.
- Lightweight design enhances portability without sacrificing tracking accuracy.
- Minimal backlash in both configurations ensures reliable performance.
Cons:
- Payload capacity is best suited for smaller to medium setups.
- Dual-mode operation introduces additional calibration steps, which may be challenging for new users.
Check out our full review of the iOptron HAE43
4. WarpAstron WD20 Strain Wave Direct Drive Mount
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Overview & Features:
- Next-Generation Direct Drive: Building on its predecessor’s foundation, the WD20 features an updated direct drive motor system that delivers even faster response times and smoother tracking. This makes it ideal for dynamic astrophotography and real-time tracking of fast-moving celestial objects.
- Enhanced Payload and Stability: Improved structural engineering provides increased payload capacity, allowing for larger telescopes and extended imaging sessions without sacrificing precision.
- Advanced Tracking & Software Integration: Upgraded real-time tracking corrections and refined software integration offer greater control over tracking adjustments, ensuring optimal performance in varied conditions.
- Versatile Configurations: Designed to operate seamlessly in both Equatorial and Alt-Az modes, the WD20 enables quick and hassle-free mode switching.
- Modular & User-Friendly: The modular design facilitates easy maintenance and future upgrades, while the intuitive control interface simplifies calibration and everyday use.
Price:
- Priced at $3,199, the WD20 delivers significant performance enhancements that justify its competitive pricing in the high-performance segment.
Pros:
- Superior responsiveness with ultra-smooth, rapid tracking.
- Increased payload capacity supports heavier setups for larger telescopes.
- Versatile dual-mode operation and advanced tracking corrections suit a wide array of astrophotography scenarios.
- User-centric design eases maintenance and setup, accommodating evolving needs.
Cons:
- Its high precision may require frequent calibration, particularly under changing environmental conditions.
- The suite of advanced features might present a learning curve for beginners.
Check out our full review of the Warp Astron WD20
5. Sky-Watcher Wave 150i Strainwave Mount Head
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Overview & Features:
- Integrated Precision: The Wave 150i employs strainwave drive technology to achieve high-precision tracking with near-zero backlash, specifically optimized for Sky-Watcher’s line of telescopes.
- Intuitive Control Interface: Designed for ease of use, its interface simplifies alignment, calibration, and operation, making it accessible for both newcomers and seasoned users.
- Enhanced Compatibility: Seamlessly integrates with popular astrophotography software and Sky-Watcher’s ecosystem, allowing for streamlined control and automated routines.
- Balanced Design: Offers an excellent balance between precision tracking and portability, well-suited for both backyard observatories and mobile astrophotography setups.
Price:
- At $2,195, the Wave 150i provides strong performance and ease of use at a very competitive price point within its ecosystem.
Pros:
- Excellent tracking precision with minimal backlash.
- User-friendly control system simplifies setup and operation.
- Strong integration with Sky-Watcher telescopes and software enhances overall performance.
Cons:
- Payload capacity may be limited compared to some heavier, dedicated equatorial mounts.
- Some users might experience a learning curve when optimizing its advanced automation features for specific imaging setups.
Check out our comparison of the Sky-Watcher 150i vs the iOptron HAE29
Conclusion
When choosing a telescope mount, your decision will hinge on balancing performance, versatility, portability, and cost:
- ZWO AM5N: At $1,999, it offers a well-rounded solution with near-zero backlash and an intuitive interface, ideal for medium-weight setups and both imaging and visual observation.
- Pegasus Astro NYX-101: Priced at $2,960, it excels in build quality and advanced tracking features for deep-sky astrophotography, best suited for heavy-duty, stationary setups.
- iOptron HAE43: For $2,948, it provides dual-mode versatility in a lightweight package, perfect for users needing flexibility between Alt-Az and Equatorial configurations.
- WarpAstron WD20: At $3,199, it represents the next generation of direct drive mounts, with enhanced responsiveness, increased payload capacity, and versatile mode switching for dynamic astrophotography.
- Sky-Watcher Wave 150i: With a price of $2,195, it combines precision tracking with user-friendly control and strong software integration, making it an excellent choice for both fixed and mobile applications within the Sky-Watcher ecosystem.
Each mount leverages strain wave harmonic drive technology to deliver smooth, precise tracking with minimal backlash, ensuring that whether you’re capturing long-exposure deep-sky images or enjoying casual observations, your equipment meets the demands of modern astrophotography.