Choosing the right equatorial mount with a belt drive system depends heavily on your specific needs—whether you’re after portability, high payload capacity, or advanced automation features. The MirroSky GX35 stands out as a lightweight, app-controlled option ideal for deep space astrophotography on the go, but it requires careful power management and setup. Conversely, the Celestron CGX offers a robust, high-capacity mount suited for serious astrophotographers who need to support larger telescopes and remote operation, yet its weight and complexity may be overkill for casual users. In this guide, I compare these two options to help you find the best fit for your astronomy pursuits.
Key Takeaways
- The MirroSky GX35 excels in portability and ease of use, making it perfect for portable astrophotographers.
- The Celestron CGX offers significantly higher payload capacity, ideal for larger telescopes and advanced imaging setups.
- Both mounts use belt drives for smooth tracking, but their tradeoffs include weight and complexity—choose based on your mobility and experience.
- App control is a key feature for the GX35, while the CGX relies on advanced software for automation and remote operation.
- Consider your power setup and space constraints when selecting between these two mounts, as they serve different user profiles.
| MirroSky by Spectrum Optical GX35 Smart EQ Mount with Guide-Scope |  | Best for portability and advanced app control | Weight: 8.8 lb (4 kg) | Payload Capacity: 28.5 lb (12.9 kg) | Guidescope Diameter: 53 mm | VIEW ON AMAZON | See Our Full Breakdown |
| Celestron CGX Computerized German Equatorial Mount & Tripod, 55 lb Payload |  | Best for high payload capacity and automation | Payload Capacity: 55 lb | Weight: 108 pounds | Focal Length: 41.25 inches | VIEW ON AMAZON | See Our Full Breakdown |
| equatorial mounts with belt drive system | Weight | Payload Capacity | Guidescope Diameter | Drive System |
|---|---|---|---|---|
| MirroSky by Spectrum Optical G | 8.8 lb (4 kg) | 28.5 lb (12.9 kg) | 53 mm | Worm gear and synchronous belt drives |
| Celestron CGX Computerized Ger | 108 pounds | 55 lb | — | — |
More Details on Our Top Picks
MirroSky by Spectrum Optical GX35 Smart EQ Mount with Guide-Scope
The MirroSky GX35 distinguishes itself with a lightweight design that makes it easier to transport than traditional mounts. Its integrated guidescope and guide camera simplify astrophotography, especially for those who prefer a compact setup. The smart app control adds a layer of convenience for sky navigation and monitoring, making it accessible for those who want to operate remotely or via mobile devices. Compared to larger mounts like the Celestron CGX, it sacrifices some payload capacity and might require additional power management, but it compensates with ease of use and portability. The belt drives ensure smooth, quiet tracking, which is vital for capturing sharp images during long exposures.
Pros:- Lightweight and portable for easy transport
- Integrated guidescope and guide camera streamline astrophotography
- Smart app control simplifies sky navigation
- Supports payloads up to 28.5 lbs with smooth tracking
Cons:- Requires a 12V power supply, which may need additional setup
- Setup can be complex for beginners unfamiliar with astrophotography gear
- Limited detailed specs on some features make it harder to gauge full performance
Best for: Beginners and portable astrophotographers seeking a compact, app-controlled system.
Not ideal for: Users with very heavy or large telescopes, or those prioritizing extensive automation and high payload capacity.
- Weight:8.8 lb (4 kg)
- Payload Capacity:28.5 lb (12.9 kg)
- Guidescope Diameter:53 mm
- Drive System:Worm gear and synchronous belt drives
- App Compatibility:iOS and Android
- Power Input:12V 3A
Our verdict“A versatile, portable mount ideal for astrophotographers who prioritize mobility and app control, but less suited for heavy-duty or large telescope setups.”
Celestron CGX Computerized German Equatorial Mount & Tripod, 55 lb Payload
The Celestron CGX is built for serious astrophotographers requiring a robust mount capable of supporting large telescopes. Its 55 lb payload capacity far exceeds the GX35, enabling the use of heavy-duty imaging equipment and larger optical tubes. The mount features advanced computerized control, a vast object database, and guided tours, making it suitable for remote operation and automated observing sessions. Unlike the more portable GX35, the CGX’s weight and size demand a dedicated setup area and a more involved assembly process. The belt drive system ensures smooth, precise tracking, but the complexity of its software and hardware could be a challenge for newcomers. It’s ideal for users who prioritize capacity and automation over portability.
Pros:- Supports large telescopes and heavy astrophotography gear
- Advanced control software with extensive object database
- Remote operation with internal cabling
- High durability with stainless steel tripod and starbright coatings
Cons:- Heavy and bulky, requiring significant setup space
- Complex interface and features may intimidate beginners
- Price is likely high, targeting serious users
Best for: Experienced astrophotographers needing high payload capacity and automation features.
Not ideal for: Beginners or those with limited space and less experience in complex mount setups.
- Payload Capacity:55 lb
- Weight:108 pounds
- Focal Length:41.25 inches
- Control Features:Computerized with 40,000-object database
- Tripod Legs:Stainless steel
- Power Source:DC power supply
Our verdict“A powerful, high-capacity mount designed for dedicated astro-imagers who need automation and support for large telescopes, but less suitable for casual use.”
How We Picked
Our selection process focused on equatorial mounts with belt drive systems that balance performance, portability, and user experience. We evaluated technical specs like payload capacity, drive smoothness, and control options, comparing how each mount’s belt drive system contributes to tracking accuracy and noise reduction. We also considered ease of setup, app integration, and overall versatility to serve different types of users—from casual astrophotographers to serious observers. Our goal was to highlight options that stand out in real-world scenarios, rather than just listing features in isolation.
Factors to Consider When Choosing Equatorial Mounts With Belt Drive Systems
Selecting an equatorial mount with a belt drive system involves balancing portability, payload needs, automation capabilities, and your experience level. Belt drives provide smoother, quieter tracking compared to traditional worm gears, which benefits long-exposure astrophotography and precise celestial tracking. The key is to match the mount’s capacity and features with your specific observing or imaging goals. Whether you prefer a lightweight, smartphone-controlled mount or a heavy-duty system for large telescopes, understanding the tradeoffs in weight, complexity, and automation helps ensure you choose a mount that enhances your astronomy experience.
Portability vs. Capacity
If you often observe or shoot astrophotography in different locations, a lightweight, app-controlled mount like the MirroSky GX35 might be the best fit, thanks to its ease of transport and setup. However, if your main goal involves supporting larger telescopes or heavier imaging gear, then a more substantial mount like the Celestron CGX becomes necessary. Larger mounts tend to be heavier, more complex, and require dedicated space, but they provide the stability and capacity needed for advanced work.
Automation and Control
Automation features—such as integrated software, guided tours, and remote operation—are essential for serious astrophotography. The GX35’s app control offers a simple, mobile-friendly interface, ideal for beginners or those who value quick setup. Conversely, the CGX’s comprehensive software suite supports extensive automation, perfect for experienced users who want to control their mount remotely and run complex imaging sessions without manual adjustments.
Ease of Use and Setup
While the GX35 emphasizes ease of transport and quick setup, its complex initial configuration may challenge newcomers. The CGX, although more powerful, involves a more detailed assembly and learning curve. Consider your comfort with technical setup and whether your priority is quick deployment or long-term automation and stability.
Frequently Asked Questions
What are the main advantages of belt drive systems in equatorial mounts?
Belt drive systems offer smoother and quieter operation compared to traditional worm gears, which reduces vibrations and improves tracking accuracy during long exposures. They also tend to have less backlash and can provide more precise control, benefiting astrophotography where image sharpness is critical. However, belt drives may require more maintenance or replacement over time, and their design can add complexity and cost to the mount.
Is a lightweight mount like the MirroSky GX35 suitable for astrophotography?
Yes, the GX35 is well-suited for astrophotography, especially for those who need portability or are just starting out. Its integrated guidescope and app control make it easier to capture deep-sky images with smaller telescopes. Still, its payload limit means it’s best for lightweight optical tubes, and users should be mindful of power needs and setup complexity to get the best results.
Can I upgrade a mount with belt drives later on?
In most cases, upgrading a mount’s belt drive system involves replacing or modifying key components, which can be complex and costly. Some mounts are designed with modular parts that facilitate upgrades, but many integrated systems are not easily adaptable. It’s generally better to choose a mount that already meets your current and future needs to avoid costly retrofits.
How important is payload capacity for choosing an equatorial mount?
Payload capacity directly impacts the stability and tracking precision of your mount. Choosing a mount with a capacity slightly above your total optical and imaging equipment weight ensures better performance and longevity. Overloading a mount can lead to vibrations, tracking errors, and quicker wear, so it’s wise to consider future expansion and opt for a mount that comfortably supports your gear.
What should I consider when choosing between manual and automated mounts?
Manual mounts require physical adjustments and are usually simpler and more affordable, suitable for casual observing. Automated mounts, especially those with advanced software and app control, are better suited for astrophotographers or users who want precise tracking and remote operation. The decision depends on your experience level, budget, and how much automation enhances your observing or imaging sessions.
Conclusion
If you prioritize portability, ease of use, and astrophotography beginner features, the MirroSky GX35 makes a compelling choice. It suits users who want a lightweight, app-controlled mount that can handle moderate payloads. For those with serious imaging ambitions, larger telescopes, and a dedicated observing space, the Celestron CGX offers unmatched capacity and automation, at the expense of weight and complexity. Casual observers with small setups should lean toward the GX35, while professional amateurs or institutions will find the CGX’s features well worth the investment.
