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iOptron iEQ45 PRO GOTO Equatorial Mount - 2inch Tripod

iOptron iEQ45 PRO GOTO Equatorial Mount - 2inch Tripod
Incl. VAT 20.00 % ( £233.17 )
Product Code

Availability: Special order. The factory is backordered because of high demand. There will be a wait time of approximately 45 days after order placement and payment.

The iOptron iEQ45 Pro Equatorial Mount is the tool of choice for astrophotographers.
Advantages are: Highest payload capacity vs. head-weight in it's class, a refined stepper driven belt-drive system, and a precision worm gear. These features make for accurate, repeatable tracking and GOTOs.
Included in this package: 
  • iEQ45 Mount head, controller, and 2x 5kg counterweights
  • iOptron 2" Stainless Steel Tripod
  • Losmandy/Vixen dual saddle
  • AccuAlignTM Polar Scope
iOptron's AccuAlign system uses GPS technology for quick alignment and easy setup necessary for astro imaging. Combined with the Altair GPCAM camera, SharpCap PRO, and Altair 30, 50 or 60mm Guide scopes you can get super-accurate polar alignment in the field in minutes, and be imaging in a very short time. For visual use or if you don't want to auto-guide, the included visual polar scope makes accurate polar alignment a breeze with an easy to understand darkfield illuminated reticule and polar alignment assistance on the handset.
iOptron has taken all the fundamentals of the original iEQ45 Pro and added some new features/improvements in the PRO version, including:
  • Stepper motors (instead of servo) for smoother tracking and quiet slewing.
  • Higher gear ratio (now same gears as CEM60) for smoother power delivery.
  • A number of refinements (plugs moved to sides, single-piece covers, etc.)
iEQ45 Pro Features:
  • Payload: 45 lbs (20 kg)
  • Mount weight: 25 lbs (11.4 kg)
  • Portable, compact, and sturdy German equatorial mount with the highest Payload/Mount ratio (1.7) in the category
  • ST-4 autoguiding port capable of reverse guiding with auto-protection
  • Permanent periodic error correction (PEC)
  • Ultra-accurate tracking with temperature compensated crystal oscillator (TCXO)
  • Gap-free structure for both R.A. and declination worms
  • Built-in 32-channel GPS
  • Hand controller with Advanced GOTONOVA® GoTo Technology and heating mechanism
  • Lowest working temperature: -20 °C
  • RS232 port for mount firmware upgrade and ASCOM control
  • Encoder Resolution: 0.09 arc seconds
  • Spring loaded dual size dovetail saddle for both Vixen and Losmandy-type mounting plates
  • 2 inch heavy-duty stainless steel tripod legs (16.5 lbs) (not included in the Head-only or Tri-Pier packages).
  • Die-cast metal tripod spreader with accessory tray (not included in the Head-only or Tri-Pier packages).
  • Optional ultra portable, ultra stable Tri-Pier (included in the Tri Pier package).
  • AccuAligningTM polar scope with dark-field illumination and Quick Polar Alignment procedure, allowing for fast and accurate polar alignment
  • Comes standard with: 2x 5 kg counterweight, 12V DC car plug adaptor, RS232-RJ9 cable.

Technical specification:


German Equatorial Mount


45 lb (20kg)

Mount weight

25 lb (11.4kg)

Payload/Mount weight


Right Ascension worm wheel

Φ130mm, 256 teeth aluminum

Declination worm wheel

Φ116mm, 228 teeth aluminum

Right Ascension axis shaft

Φ50mm steel

Declination axis shaft

Φ40mm steel

Right Ascension bearing

Φ80mm ball bearing

Declination bearing

Φ68mm ball bearing

R.A. and DEC worm

Φ17mm brass

Motor drive

128X microstep stepper motor


0.09 arc seconds


Synchronous belt/Gear

Latitude adjustment range

5º ~ 70º

Azimuth adjustment range

± 6º


Built-in 32-channel GPS

Polar Scope

AccuAlignTM G2 with dark field illumination

Level indicator

Precision bubble

Hand Controller

Go2Nova® 8407+with 358,000 objects database


Permanent PEC





Counterweight bar

Φ28mm stainless steel


11 lb (5kg) X 2 (included)




6" VIXEN/LOSMANDY-D dual saddle

Power consumption


Power requirement

12V DC(10 ~ 14V), 2Amp

AC adapter

100V ~ 240V (included)

Serial port

Yes (RJ9 on both mount and hand controller)

Autoguide port


Firmware upgrade


PC computer control


Operation temperature

-20ºC ~ 40ºC


Two Year Limited

Instruction manuals:

Quick Start Guide
Instruction Manual
Tri-Pier Assembly Manual 

Download Latest Firmware

iOptron Telescope ASCOM Driver:
Install ASCOM Driver and Commander 

PLEASE NOTE: Legitimate iOptron products purchased from Offical UK Distributor Altair Astro all have a unique serial number, either on the mount as shown, or inside the battery compartment. The serial number is used for warranty purposes to help us support you. Do not be concerned if the box appears to have been opened. All mounts are removed from their boxes, and checked. We then apply the serial number.
Altair iOptron Serial Number
To find out more about astro photography with the iOptron range of mounts, we suggest joining the iOptron Imaging Yahoo User Group: Click to join the iOptron Imaging Mount User Group (opens new window).
Click to join ieq45imaging
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