Choosing the right equatorial mount with a belt drive system depends on your astrophotography needs, portability preferences, and experience level. For those seeking lightweight versatility, the MirroSky GX35 stands out with its portability and app control. Meanwhile, the Celestron CGX offers robust payload capacity and automation for serious astrophotographers. Both models leverage belt drives to deliver smoother, more precise tracking, but they differ significantly in size, complexity, and target user.
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Key Takeaways
- The MirroSky GX35 provides excellent portability and integrated guidescope, ideal for mobile astrophotographers.
- The Celestron CGX supports heavier payloads and automated tracking, suited for advanced astrophotography setups.
- Both mounts use belt drives to improve tracking smoothness, but they differ in complexity and power requirements.
- Setup ease varies, with the GX35 being more beginner-friendly, while the CGX demands more technical knowledge.
- Price and size are key factors: the GX35 is more affordable and portable, while the CGX is heavier and more feature-rich.
| MirroSky by Spectrum Optical GX35 Smart EQ Mount with Guide-Scope | ![]() | Best Portable, App-Controlled Equatorial Mount | Weight: 8.8 lb (4 kg) | Payload Capacity: 28.5 lb (12.9 kg) | Mount Type: Equatorial and Alt-AZ | VIEW ON AMAZON | See Our Full Breakdown |
| Celestron CGX Computerized German Equatorial Mount & Tripod, 55 lb Payload | ![]() | Best Heavy-Duty, Automated Belt-Drive Mount | Payload Capacity: 55 lb | Mount Type: German Equatorial | Motor Type: High-Torque Servo Motors | VIEW ON AMAZON | See Our Full Breakdown |
| equatorial mounts with belt drive system | Payload Capacity | Mount Type | Drive System | Weight |
|---|---|---|---|---|
| MirroSky by Spectrum Optical G | 28.5 lb (12.9 kg) | Equatorial and Alt-AZ | Worm gear and synchronous belt drives | 8.8 lb (4 kg) |
| Celestron CGX Computerized Ger | 55 lb | German Equatorial | Belt-Drive | — |
More Details on Our Top Picks
MirroSky by Spectrum Optical GX35 Smart EQ Mount with Guide-Scope
The MirroSky GX35 stands out for its lightweight, portable design, weighing only 8.8 pounds, making it perfect for astrophotographers on the move. Its integrated 53mm guidescope and guide camera streamline deep-sky astrophotography, especially for those who want an all-in-one system. The inclusion of worm gear and synchronous belt drives promises precise tracking, though setup can be complex for beginners. Compared to larger mounts, it excels in ease of transport and quick deployment, but its slightly limited payload capacity of 28.5 pounds could restrict larger equipment.
This mount is ideal for advanced amateurs who prioritize portability and app control, leveraging the MirroSky app for seamless operation. However, it requires an external power supply and may need some technical familiarity to get started efficiently.
Pros:- Lightweight and portable design for easy transport
- Includes high-quality guidescope and guide camera
- Compatible with MirroSky app for remote control
- Supports payloads up to 28.5 pounds with smooth tracking
Cons:- Requires external power (12V 3A)
- Setup can be complex for newcomers
- Limited detailed specifications on software features
Best for: Advanced astrophotographers seeking a portable, app-controlled mount
Not ideal for: Beginners or those needing to support very heavy equipment
- Weight:8.8 lb (4 kg)
- Payload Capacity:28.5 lb (12.9 kg)
- Mount Type:Equatorial and Alt-AZ
- Guidescope Diameter:53 mm
- Guidescope Camera:Sony IMX662 CMOS (2.1 MP)
- Drive System:Worm gear and synchronous belt drives
Our verdict“This pick excels for portable astrophotographers who want app control and a dedicated guidescope, despite some setup complexity.”
Celestron CGX Computerized German Equatorial Mount & Tripod, 55 lb Payload
The Celestron CGX is designed for serious astrophotographers who need a mount capable of supporting up to 55 pounds. Its high-torque servo motors and belt-drive system provide very smooth, precise tracking, suitable for long-exposure imaging. The NexStar+ hand controller offers access to a database of 40,000 objects, making automated tracking and guided tours straightforward for users comfortable with more complex setups. Compared to the GX35, it’s significantly heavier and less portable, but it compensates with greater stability and automation features.
This mount is better suited for users with established setups looking for reliability and heavy payload support. Beginners may find the initial setup intimidating, and its weight may limit frequent transport. Still, for dedicated astrophotographers, its combination of motor power and belt-drive smoothness makes it a compelling choice.
Pros:- Supports payloads up to 55 pounds
- High-torque servo motors ensure precise movement
- Belt-drive system for smooth tracking
- Large object database and automation capabilities
Cons:- Heavy and less portable due to size
- Setup requires technical familiarity
- More expensive than lightweight options
Best for: Experienced astrophotographers requiring high payload capacity and automation
Not ideal for: Beginners or portable setups needing lightweight equipment
- Payload Capacity:55 lb
- Mount Type:German Equatorial
- Motor Type:High-Torque Servo Motors
- Drive System:Belt-Drive
- Controller:NexStar+ Computer Hand Controller
- Object Database:40,000 objects
Our verdict“The CGX offers unmatched payload support and automation for advanced users willing to handle its weight and complexity.”

How We Picked
Our selection focuses on belt drive equatorial mounts that balance performance, portability, and user needs. We prioritized models that use belt drives for smoother tracking, compare their payload capacities, control features, and compatibility. We also considered user-friendliness, weight, and overall value to provide options for both beginners and experienced astrophotographers.
| equatorial mounts with belt drive system | Mount Type | Drive System |
|---|---|---|
| MirroSky by Spectrum Optical G | Equatorial and Alt-AZ | Worm gear and synchronous belt drives |
| Celestron CGX Computerized Ger | German Equatorial | Belt-Drive |
Factors to Consider When Choosing Equatorial Mounts With Belt Drive Systems
Selecting an equatorial mount with a belt drive system hinges on understanding your specific needs—whether portability, payload, automation, or ease of use. Belt drives significantly improve tracking smoothness and reduce gear backlash, but choices vary based on size, power, and complexity. This guide helps clarify which features matter most for different types of users.
Portability vs. Payload Capacity
If you frequently move your setup or prefer a lightweight system, the MirroSky GX35 offers excellent portability with enough capacity for most astrophotography gear. For those with permanent observatories or larger equipment, the Celestron CGX provides a robust support system capable of handling heavier payloads with greater stability.
Automation and Control
Automation features like hand controllers and app control can streamline star alignment and tracking. The CGX excels here, with its extensive object database and advanced software, perfect for users who want minimal manual intervention. The GX35 provides app control but may require more manual setup and adjustments.
Ease of Use and Setup
Beginners should lean toward the GX35 for its more straightforward assembly and portability, whereas experienced users might prefer the CGX for its detailed setup options and automation capabilities, despite the higher learning curve.
Frequently Asked Questions
What is a belt drive system in equatorial mounts?
A belt drive system uses belts instead of gears to transfer power from the motor to the mount’s axes. This design reduces gear backlash, enhances tracking smoothness, and often results in quieter operation, making it highly desirable for astrophotography where precision is critical.
Are belt drives more reliable than traditional gear systems?
Belt drives tend to be more reliable for long-term use because they experience less backlash and wear more evenly than gear systems. They also offer smoother motion, which is essential for high-precision astrophotography. However, belts can stretch over time and may need replacement, especially under heavy use.
Is a belt drive system more difficult to maintain?
Compared to gear-based mounts, belt drives generally require less maintenance since they have fewer moving parts and less friction. Regular inspection for belt tension and integrity is recommended, but overall, they are less prone to mechanical issues related to gear wear.
Which mount is better for beginners, the MirroSky GX35 or the Celestron CGX?
The GX35 is better suited for beginners due to its portability and simpler setup, even though it still offers advanced features like app control. The CGX, while powerful, involves a more complex setup process and heavier weight, making it less ideal for those new to astrophotography.
Can these mounts support heavy astrophotography equipment?
The MirroSky GX35 supports up to approximately 28.5 pounds, making it suitable for smaller to mid-sized setups. In contrast, the Celestron CGX can handle up to 55 pounds, making it a better choice for larger telescopes and extensive accessories, but with added weight and complexity.
Conclusion
For casual astrophotographers or those who prioritize portability, the MirroSky GX35 offers a compelling mix of features and ease of use. Advanced users or those with heavy equipment should consider the Celestron CGX for its higher payload capacity and automation. Beginners wanting simplicity should lean toward the GX35, while seasoned astrophotographers needing maximum support and precision may find the CGX more fitting.
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