Brand: iOptron

iOptron HEM27 w/ High Precision Encoder (H274A)

H274A

Brand: iOptron

iOptron HEM27 w/ High Precision Encoder (H274A)

H274A

  • Advanced strain wave drive technology
  • Payload capacity of 13.5 kg (29.7 lbs) with the mount weight of 3.7 kg (8.15 lbs)
  • CNC machined
  • Unique friction brake to safely stop movement during a planned or unplanned power interruption
  • 360 second gear period
  • High precision encoder with realtime PEC (RPEC)
  • Go2Nova® hand controller with ~212,000 object database
  • iPolar electronic polar scope for easy and accurate polar alignment
  • 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
$3,189.00 USD

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Product Description

Introducing the HEM27 and the HEM27EC, iOptron’s revolutionary hybrid strain wave 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. Applying iOptron’s multi decade experience creating precision mounts, the HEM27 brings this vision to reality.

Utilizing state of the art strain wave 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).

A HEM27 mount can be controlled by a computer, either via ASCOM/Commander for a Windows PC or a third party INDI driver for a MacOS software; a SmartPhone/Tablet via iOptron Commander Lite or an App like SkySafari; or a Raspberry Pi device via INDI driver.

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

Specifications

Mount Hybrid Equatorial Mount
RA gear system StrainWave 17
DEC gear system Backlash-free worm/belt system
RA reduction ratio 120
Payload w/o CW * 29.14 lbs (13.5kg)
Mount weight 7.49lbs (3.4kg) w/o dovetail saddle
8.15 ls (3.7kg) with dovetail saddle
Payload/Mount weight 3.65
Payload with CW * 44 lbs (20kg)
Period 360 second
Drive motor Stepper motor
Structure material All metal, CNC machined
Exterior finish Anodized black
High precision encoder Yes (RA)
PEC Yes, Realtime PEC
Latitude adjustment range 15° ~ 65°
Azimuth adjustment range ± 5°
Polar scope iPolar electronic polar scope
Level indicator Level bubble
Control system GOTONOVA/Commander
Hand controller Go2Nova® 8409 with ~212,000 objects database
Tracking Automatic
Maximum slew speed 6°/sec
Power consumption 0.5A(Tracking), 1A(GOTO)
Power requirements 12V DC, 5A
AC adapter 100V ~ 240V (included, indoor use only)
Power off brake Electronic friction brake
Power-down memory Yes
Wi-Fi Built-in
Communication port Yes (Wi-Fi and USB)
Autoguide port Yes (ST-4 compatible)
Firmware upgrade Yes
Tripod Optional
Counterweight shaft SS Φ20X200mm, M16 thread (Optional)
Counterweight 10 lbs (4.5kg) (Optional)
Operation temperature -20°C ~ 40°C (hand controller -10°C ~ 40°C)
Warranty Two year limited

* 200mm, with payload center of gravity to the RA rotation axis. Or an OTA size of ~220mm.

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