iOptron’s HEM15 mount offers excellent features of a “large” equatorial mount and, due to “Harmonic Drive” technology, can be used without counterweights/a counterweight shaft. Despite its low weight of only 2.5kg, it has a maximum load capacity of up to 8kg (with the use of optional counterweights up to 12kg). This gives the HEM mount an exceptional weight-to-load ratio as well as having amazing features such as permanent periodic error correction (PEC), automatic mount stopping in the case of power outages with no need to repeat set-up after starting up again, precise tracking (even without guiding), internal cable management, an extensive prism clamp for Vixen and rails, high-quality CNC machined and anodised materials, tried-and-tested iOptron Go2Nova 8409 software, built-in WiFi, and iOptron’s trademark exceptionally quiet drive.