These light weight, high payload mounts will deliver an performance like never before. Imagine a mount head weighing in at 3.7 kg with a payload capability 13.5 kg, without needing a cumbersome counterweight. Applying iOptron?s multi decade experience creating precision mounts, the HEM27 brings this to reality.

Utilizing state of the art harmonic drive technology for the RA movement in tandem with backlash-free DEC worm/belt drive design, the HEM27s deliver unparalleled weight to payload efficiency. Its black anodized all metal CNC machined body is not only appealing to the eye, it?s a rugged platform that will perform at the highest level for many years to come. Unique features such as an electronic friction break and power down memory allow the mount safely stop and resume a GoTo slew or continue tracking even after an abrupt power loss (No need to realign and start from the beginning).

Weight only 3.7 kg
Although the carrying capacity is 13.5 kg, the mount weighs only 3.7 kg. It is very compact and easy to transport. The lighter the mount is, the more often it will be used.

No counterweights required
No counterweights are required even when fully loaded. This is especially convenient for mobile observing.

Balancing unnecessary
Mounts with worm gear drives are sensitive to balance. The HEM27, on the other hand, does not need to be rebalanced when you change cameras, for example.

Strain Wave Gear (Harmonic Drive)
Instead of worm gears, a new type of reducer called strain wave gear (harmonic drive) is used. Almost no backlash and no maintenance is required. As it is widely used in industrial robots, it is very durable.