Gear Database

iOptron HEM44EC with iPolar

iOptron

iOptron HEM44EC Hybrid Strain Wave Drive Mount Head is a strain-wave GoTo mount for guided astrophotography rigs.

mount premium
iOptron HEM44EC with iPolar

Best Current Offer

Astronomics logo
Astronomics
In stock
$4,148.00

Other retailers

Specifications

Mount

Mount type
Hybrid strain-wave equatorial GoTo mount
Drive system
Strain-wave RA drive with belt-driven DEC
Payload capacity
44 lb (20 kg) without counterweight; 55 lb (25 kg) with counterweight
Mount weight
13.65 lb (6.2 kg)
Counterweight
SS Φ20X200mm, M16 thread (Optional)
Latitude range
15º ~ 65º

Capacity

Payload-to-weight ratio
4:1

Motion

Slew rate
4.5º/sec
Encoder
High-precision RA encoder variant

Specifications

Power
DC12V-5A (5.5/2.5mm DC plug)

Electronics

Controller
Go2Nova® 8409 with ~212,000 objects database

Mechanical

Tripod / pier
Optional

Astrophotography Fit

A portable strain-wave mount that should be chosen by realistic imaging payload, not headline capacity alone.

iOptron HEM44EC Hybrid Strain Wave Drive Mount Head is a premium strain-wave GoTo mount for computerized tracking and guiding.

For long-exposure astrophotography, use a conservative imaging payload. The telescope, camera, guide hardware, dew heaters, dovetails, and cables all count, and guiding performance matters more than the catalog payload number.

Strain-wave mounts are wonderfully compact, but they still need stiffness, cable discipline, and sometimes counterweighting to keep long tubes calm.

Best paired with

  • Compact refractors, cooled cameras, and tidy cable-managed power
  • Guiding from a guide scope or OAG for long exposures
  • Tripod or pier with enough stiffness for the full imaging load

Not recommended for

  • Ignoring counterweights on long or heavy optical tubes
  • Tall, flexible tripods with high wind exposure
  • Payloads near the marketing limit for long-exposure imaging

Where To Buy

Some links on this page are affiliate links. Prices and availability are pulled automatically from each retailer and updated daily.

Retailer Price Availability View Offer
Astronomics logo
Astronomics
Astronomics
$4,148.00
In stock
Updated 5/11/2026
View Offer - $4,148.00
Cloud Break Optics logo
Cloud Break Optics
Cloud Break Optics
$4,148.00
In stock
Updated 5/14/2026
View Offer - $4,148.00
Mile High Astronomy logo
Mile High Astronomy
Mile High Astronomy
$4,148.00
In stock
Updated 5/12/2026
View Offer - $4,148.00
High Point Scientific logo
High Point Scientific
High Point Scientific
$4,559.00
In stock
Updated 5/13/2026
View Offer - $4,559.00