iOptron iEQ45 Pro Goto EQ Mount

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iOptron iEQ45 Pro Goto EQ Mount

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The next generation of premium astro-imaging mounts from iOptron

iOptron made a few changes on the iEQ45 including; Stepper motor (instead of servo), Higher gear ratio and A number of visual changes (ex. plugs moved to sides, motor covers are singular piece, and more).

The iEQ45™ mount offers the next generation GoTo technology from iOptron —not to mention built-in 32-bit GPS. With a payload of 20kg. balanced – it comes standard with a calibrated dark field illumination polar scope and a sturdy 2-inch stainless steel tripod. It also fits both Vixen and Losmandy-type mounting plates. Its lighter weight (only 12kg.) makes it much easier to carry.


  • Specialized astrophotography mount ideal for entry-level and intermediate astrophotographers
  • Payload: 20kg
  • Mount weight: 12kg
  • 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: -20oC
  • RS232 port for mount firmware upgrade and ASCOM control
  • Resolution: 0.09 arc second
  • Spring loaded dual size dovetail saddle for both Vixen and Losmandy-type mounting plates
  • 2 inch heavy-duty stainless steel tripod legs (7.5kg)
  • Die cast metal tripod spreader with accessory tray
  • Optional pier.
  • AccuAligningTM polar scope with dark-field illumination and Quick Polar Alignment procedure, allowing for fast and accurate polar alignment
  • Comes standard with: 2 x 5kg counterweight, AC adaptor, 12V DC car plug adaptor, RS232-RJ9 cable and RS232 cable

This mount is not kept in stock but is available to order on an indent basis.


Technical Specifications

Mount      German Equatorial Mount
Payload   20kg, excluding counterweight
 Mount weight   11.4kg
 Payload/Mount weight   1.75
 Worm wheel   RA: Ø130mm, 256 teeth aluminum / DEC:Ø115mm, 192 teeth aluminum
 Axis shaft   RA: Ø50mm steel / DEC: Ø40mm steel
Motor drive    Planetary Gear Reducer DC servo with encoder
 Resolution   0.09 arc seconds
Transmission   Synchronous belt/Gear
Latitude adjustment range   5º ~ 70º
Azimuth adjustment range   ± 6º
GPS   Internal 32-channel GPS
Level indicator   Precision bubble
Hand Controller   Go2Nova® 8407 with 358,000 objects database
PEC   Permanent PEC
Tracking   Automatic
Speed   1×,2×,8×,16×,64×,128×,256×,512×,MAX(~4º/sec)
Counterweight shaft   Ø28mm
Counterweight   2 x 5kg included
Tripod   2" Stainless Steel (7.5kg)
Dovetail saddle   Losmandy/Vixen dual saddle
Power Consumption   0.45A(Tracking), 0.75A(GOTO)
Power Requirement   12V DC(11 ~ 15V), 2Amp
AC adapter   100V ~ 240V (included)
Serial port   Yes (on hand controller)
RS232 port   Yes (on mount)
Firmware upgrade   Yes
Computer control   Yes (ASCOM)
Operation temperature   -20ºC ~ 40ºC


$3,499.00  $3,199.00
Item Details
Optional Items
Powerweight (Add $249.00)
Counterweight 5kg (Add $90.00)
Counterweight 9.5kg (Add $170.00)
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