iOptron HAE69C-EC AZ/EQ dual SWG Mount

The iOptron HAE69C EC brings serious imaging muscle to a highly portable package, combining high-capacity harmonic drive mechanics with a high-resolution encoder on the RA axis for real-time tracking correction. Designed for astrophotographers running heavier gear—think large refractors, edge-HD SCTs, and fully-loaded imaging trains—the HAE69C EC supports up to 69 pounds of payload without counterweights (depending on instrument configuration).

It’s built for precision. It’s built for travel. And it’s built for those who want encoder-enhanced performance without stepping into full observatory-class size or weight.

Harmonic Drive Performance, Streamlined

At the core of the HAE69C EC is a pair of strain wave (harmonic) gear drives, one on each axis. These ultra-efficient gears deliver zero backlash, high torque, and extremely smooth slewing and tracking without the mechanical play found in traditional worm gear designs.

Because of the harmonic gear system’s strength, this mount can carry up to 69 lbs counterweight-free, depending on the balance and length of your gear. For heavier, longer instruments, an optional counterweight shaft can increase stability further—but many setups won’t need it at all.

High-Resolution RA Encoder for Real-Time Correction

The EC version of the HAE69C includes a Renishaw-style high-resolution encoder on the right ascension axis. This encoder allows the mount to actively correct periodic error in real time—without needing to guide—and dramatically improves overall tracking accuracy.

While the declination axis does not include an encoder, the mount’s strain wave drive on both axes still delivers extremely smooth, backlash-free movement. Combined with smart guiding software, the RA encoder gives you sub-arcsecond RMS performance and superior image quality—especially for long-exposure or high-resolution astrophotography.

High Payload, Lightweight Mount Head

Despite its 69 lb payload rating, the HAE69C EC mount head weighs just 19.8 lbs (9.0 kg)—making it a compelling choice for remote imaging, portable dark-sky setups, and mobile observatories. The mount offers one of the best payload-to-weight ratios in its class, and the dual dovetail saddle (Vixen + Losmandy) provides universal compatibility with most telescope plates.

The clean, CNC-machined chassis is anodized black for durability and aesthetics, and the build quality is exactly what you'd expect from iOptron's flagship harmonic series.

Encoder-Driven Accuracy, Smart Electronics

The RA encoder is just part of the story. The HAE69C EC also includes:

• Go2Nova 8409 hand controller with 212,000+ object database

• Built-in Wi-Fi (via the hand controller) for app-based control

• USB and RS232 ports for PC/Mac control using ASCOM, INDI, or iOptron Commander

• Electronic friction brakes on both axes to protect gear during power loss

• Zero position search and memory to safely resume or restart sessions

• Full compatibility with SkySafari, NINA, Stellarium, and other control platforms

Included Accessories

• HAE69C EC harmonic equatorial mount head

• Built-in high-resolution RA encoder

• Go2Nova 8409 V2 hand controller

• Dual dovetail saddle (Vixen & Losmandy)

• 48V power supply and cable

• USB cable and communication cables

• Cable management accessories

• Custom foam-lined hard case

Optional Accessories (Sold Separately)

• iOptron Tri-Pier or LiteRoc tripod

• Counterweight shaft and weights

• Mini pier extension

• iOptron iMate for autonomous imaging

• Permanent pier adapter for observatories

• Camera control cable kits

Final Thoughts

The iOptron HAE69C EC is ideal for serious imagers looking for RA encoder accuracy, counterweight-free operation, and a mount that travels lighter than its payload suggests. Whether you’re setting up under pristine dark skies or running a remote rig, this mount offers the tracking precision, torque, and mechanical reliability to make every clear night count.

Observing Tip:
RA encoders greatly reduce periodic error, but guiding in declination is still recommended—especially for long focal lengths or targets near the meridian. Keep your declination axis well-balanced and your calibration routines consistent for the best results.

Tech Details: