iOptron HEM27 Hybrid Harmonic Drive Equatorial Mount

Introducing the HEM27 and the HEM27EC, iOptron's revolutionary hybrid harmonic drive mounts. These light weight, high payload tiny titans will deliver an astronomy experience like never before. Imagine a mount head weighing in at 8.15lbs with a payload capability 29.74lbs, without needing a cumbersome counterweight or shaft.

The maximum payload with counterweights is 44lbs (20kg).  Applying iOptron's multi decade experience creating precision mounts, the HEM27 brings this vision 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).

The HEM27EC features a high precision RA axis encoder that delivers incredible tracking accuracy, enough that many will choose to image "sans" guiding.

These mounts use the 8061 Carbon Fiber Tripod

Features

• Advanced harmonic drive technology
• Payload capacity of 13.5 kg (29.7 lbs) with the mount weight of 3.7 kg (8.15 lbs)
• CNC machined and cast metal body
• Unique friction brake to safely stop movement during a planned or unplanned power interruption
• 360 second gear period
• Permanent periodic error correction (PPEC)
• Go2Nova® hand controller with ~212,000 object database
• Cable management system, no hanging exterior cables to moving parts
• Dual saddle (vixen and losmandy-D styles)
• Built in zero position search and locator
• Power down position and location memory
• Integrated ST-4 autoguiding port
• Built-in Wi-Fi (via hand controller)
• USB port for firmware upgrade and computer control
• Soft carrying case
• Two year warranty
  

Thanks to Scott Campbell for following tips regarding using the mount with the ASIAIR:

Update the firmware on both the mount and the ASIAIR

Use the USB connection on the hand controller (or connect to the mount via WiFi with the ASIAIR in STN mode)

Set the home position on the mount at the beginning of the session

Choose HEM27 from the ASIAIR Pro menu (baud rate 115200)

Note. IOptron recommends the ASIAIR PLUS over the ASIAIR PRO version

Manual: Quick Start Guide (Coming ...) Instruction Manual (Coming ...) iPolar Operation Manual Firmware and Software: Download Latest Firmware iPolar Software iOptron Telescope ASCOM Driver: Install ASCOM Driver and Commander

Specifications

HEM27

HEM27 with iPolar

HEM27 with High Precision Encoder