Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO Review

What Happened When I Tried the Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO

For years, my astronomical pursuits have been a blend of observing and imaging, often involving a fair amount of setup and recalibration. My previous setup, while reliable, was becoming a bottleneck for my increasingly ambitious imaging sessions, particularly when I wanted to capture fainter celestial objects requiring longer exposures. The need for a more robust, yet portable, tracking solution became evident. I was on the hunt for a mount that could handle a decent payload for astrophotography without demanding the logistical effort of a much larger observatory-class instrument.

Initial impressions of this Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO were quite positive. The design struck a balance between sturdiness and apparent portability. The metal tripod felt solid underhand, and the mount head itself, crafted from what feels like durable aluminum, didn’t exhibit the flex I’ve encountered in lesser-quality units. It felt like a piece of equipment designed to withstand the rigors of outdoor use, from chilly desert nights to more humid evening sessions.

In my search, I considered a few other portable equatorial mounts, including some from Sky-Watcher and Celestron, but the PMC-Eight GOTO system on this Explore Scientific model presented a unique and compelling digital tracking solution that piqued my interest. I was also looking for something that wouldn’t require a dedicated power source beyond readily available batteries for quick field excursions, a feature this mount seemed to offer. My immediate reaction upon unboxing was a sense of pragmatic optimism; this looked like it could be the solution I needed.

Real-World Testing: Putting Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO to the Test

My primary testing ground for this Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO has been my local dark-sky site, a few hours drive from the city. I’ve also used it during backyard observing sessions, which, while not ideal for deep-sky imaging, provide a good test of its basic functionality and portability. I specifically sought out conditions that would push its limits, from nights with a slight breeze that could induce vibrations to extended periods of operation under clear, cold skies.

The initial setup was surprisingly straightforward, though I did spend about 30 minutes familiarizing myself with the PMC-Eight GOTO system’s interface and alignment procedures before my first serious night out. The mount’s adjustable folding metal tripod provided a stable base, even on slightly uneven terrain, which is crucial for accurate tracking. I found that a bit of care was needed when extending the tripod legs to ensure they were fully locked, a minor point but important for stability.

After several weeks of use, spanning over a dozen observing nights, the iEXOS-100 has proven to be a reliable workhorse. Its 15 lbs photographic weight capacity (with counterweights) proved accurate for my setup, which includes a DSLR and a moderately sized refractor. The stainless steel components on the tripod and altitude adjustment mechanism show no signs of premature wear, even after being repeatedly deployed and collapsed. Maintenance has been minimal, primarily involving keeping the optics clean and ensuring the mount’s axes are free of debris. Compared to my previous manual mount, this unit’s GOTO functionality has significantly reduced my setup and alignment time, allowing for more actual observing.

First Use Experience

The first time I deployed this Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO under a truly dark sky was a pivotal moment. I had my refractor telescope, a guide camera, and my DSLR mounted, along with a counterweight. The initial polar alignment process, guided by the PMC-Eight software on my tablet, was intuitive. I was impressed by how quickly the mount responded to commands, slewing accurately to my chosen celestial targets.

I tested its tracking performance over several hours, both with and without guiding active. In conditions with minimal atmospheric turbulence, the mount held its own remarkably well, producing sharp images of nebulae and galaxies. Even with a light breeze that would have caused my old manual mount to shake excessively, this GOTO mount maintained a steady image, a testament to its sturdy construction and precise motors. Any surprises were positive; the battery life from the included 8 C-Cell battery pack far exceeded my expectations, lasting through an entire night of continuous operation.

Extended Use & Reliability

Weeks of consistent use have solidified my positive impression of the iEXOS-100 EQ Mount with PMC-Eight GOTO. I’ve subjected it to various temperature changes, from cool autumn evenings to slightly warmer spring nights, and its performance has remained consistent. The foldable metal tripod continues to offer a rock-solid foundation, and I haven’t experienced any loosening of the leg locks or altitude adjustments.

The 19 lbs visual weight capacity is also a fair assessment; I’ve used it for visual astronomy with larger binoculars and a small terrestrial scope with ease. The counterweight system, with its 1 kg counterweights, is effective, allowing for fine-tuning of balance. I’ve found that keeping the mount head and tripod legs free of dust and grit after each use is the primary maintenance required. This is a far cry from some older mounts that required regular lubrication and adjustment of gears.

Breaking Down the Features of Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO

Let’s dive into the specifics that make this mount tick. The core of the system is the mount head itself, weighing in at a manageable 9.45 lbs. This is complemented by the 5.35 lbs tripod, bringing the total system weight (without counterweights or telescope) to a very portable 15 lbs. This figure is crucial for anyone who needs to transport their equipment to remote observing locations.

The adjustable folding metal tripod is a standout feature, offering a range of heights from a collapsed 25.5 inches to a fully extended 45 inches with the mount head attached. This allows for comfortable viewing whether you’re standing or sitting, and it folds down neatly for transport. The PMC-Eight GOTO system, powered by its 8 C-Cell battery pack, provides the brains for precise celestial object tracking. The mount’s capacity is rated at 15 lbs for photographic use and 19 lbs for visual use, which is a critical distinction for astrophotographers.

Specifications

The Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO boasts a 15 lbs photographic weight capacity and 19 lbs visual weight capacity. The mount head itself weighs 9.45 lbs, while the adjustable folding metal tripod contributes another 5.35 lbs. The tripod’s maximum height when fully extended with the mount is 45 inches, and it collapses to 25.5 inches, making it quite compact for transport. The system is powered by an 8 C-Cell battery pack, which is included, offering convenient field operation without the need for external power sources for extended periods. The mount uses standard 1 kg counterweights.

These specifications translate directly into real-world performance. The 15 lbs photographic capacity means you can comfortably mount a respectable imaging rig, including a DSLR or mirrorless camera and a medium-sized refractor or SCT, with enough buffer for counterweights. The 19 lbs visual capacity allows for larger binoculars or spotting scopes for terrestrial or astronomical viewing. The low total weight of 15 lbs is a significant advantage for portability, making it ideal for travel to dark-sky sites. The folding metal tripod ensures stability and adjustability, a crucial factor in minimizing vibration during long exposures.

Performance & Functionality

The primary job of any equatorial mount is to track celestial objects accurately as the Earth rotates. The Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO excels at this thanks to its PMC-Eight GOTO system. The precise stepper motors and well-engineered gearing contribute to a very low periodic error, which is essential for deep-sky astrophotography. When properly aligned, it holds targets steady for extended periods, enabling sharp images without constant intervention.

One of the mount’s significant strengths is its ease of use coupled with sophisticated GOTO capabilities. The initial setup and alignment are well-documented and, with practice, become quite swift. Its ability to slew to a wide variety of celestial objects with remarkable accuracy is a huge time-saver. The primary weakness, if one can call it that, is that like any GOTO mount, it requires a fundamental understanding of celestial coordinates and proper alignment procedures to achieve its full potential. It’s not a ‘point and shoot’ device straight out of the box without any user input.

Design & Ergonomics

The build quality of this equatorial mount is immediately apparent. The black anodized aluminum mount head and the stainless steel components of the tripod exude a sense of durability. The finish is smooth and resistant to minor scratches, which is important for gear that’s frequently handled outdoors. The controls, such as the altitude and azimuth adjustment knobs, are smooth and provide good tactile feedback, allowing for precise adjustments during the polar alignment process.

Ergonomically, the adjustable folding metal tripod is well-designed, with sturdy leg locks that hold their position firmly. The included accessory tray is a small but appreciated touch, providing a convenient place to store eyepieces, filters, or a smartphone. The overall design is functional and utilitarian, prioritizing performance and reliability over flashy aesthetics. There’s a minimal learning curve to the mount’s physical operation, but mastering the PMC-Eight software and its features will take a bit more time.

Durability & Maintenance

From my experience, this iEXOS-100 EQ Mount with PMC-Eight GOTO is built to last. The stainless steel elements are inherently resistant to corrosion, and the aluminum mount head is robust. I have not observed any signs of stress or material fatigue after numerous outings. The stepper motors are sealed, which should protect them from dust and moisture.

Maintenance is refreshingly simple. A quick wipe-down with a microfiber cloth after each use keeps the surfaces clean. For longer-term storage, I keep it in its original packaging or a padded case. There are no complex lubrication points that require frequent attention, unlike older worm-gear driven mounts. The biggest concern for longevity would be improper handling during transport or attempting to overload the mount beyond its rated capacity, which could lead to premature wear on the gears or motors.

Accessories and Customization Options

The Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO comes with a practical set of accessories. The adjustable folding metal tripod with its accessory tray is fundamental. The 8 C-Cell battery pack is crucial for portable operation. Two 1 kg counterweights are included, which is a good starting point for balancing most telescopes within its capacity range.

While the mount itself is quite self-sufficient, its compatibility with standard astronomical accessories is excellent. You can easily add more counterweights if needed, and the mount’s saddle is designed to accept common dovetail bars. The real customization comes with the PMC-Eight GOTO system, which interfaces with various astronomy control software packages, allowing for advanced features like autofocusing, planetarium integration, and custom object databases. This open-architecture approach is a significant advantage for users who want to integrate the mount into a more complex imaging setup.

Pros and Cons of Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO

Who Should Buy Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO?

This Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO is an ideal choice for amateur astronomers and astrophotographers who prioritize portability and reliable tracking. It’s perfect for those who frequently travel to dark-sky sites or have limited space for larger equipment. Beginners looking to step up from alt-azimuth mounts to their first equatorial mount will also find it approachable, especially with the guided GOTO system.

However, experienced deep-sky imager with very heavy telescope setups might find the 15 lbs photographic capacity limiting. Those who prefer purely manual control without any electronic assistance should also look elsewhere. For users who need to image extremely faint deep-sky objects or require the highest precision, a more substantial observatory-class mount would be a better fit. I’d also recommend pairing this mount with a good quality ball head adapter for easier initial setup of your optical tube assembly (OTA).

Conclusion on Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO

The Explore Scientific iEXOS-100 Equatorial Mount with PMC-Eight GOTO delivers a compelling blend of portability, performance, and advanced functionality. Its sturdy construction, combined with the accurate PMC-Eight GOTO system, makes it a highly capable tool for both visual astronomy and entry-to-intermediate level astrophotography. The 15 lbs photographic weight capacity is well-balanced with its relatively low weight, making it an excellent compromise for those who need to move their gear.

Considering its price point of $449.99, the value proposition is strong. You’re getting a feature-rich GOTO equatorial mount that significantly enhances observing efficiency and imaging potential. I would certainly recommend this mount to anyone looking to upgrade from a simpler setup or seeking a portable, yet powerful, tracking solution. If you’re willing to invest a little time in learning its software, this mount will reward you with countless hours of stunning celestial views.