iOptron - iEQ45 Pro Equatorial Mount with 42" Pier

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The iOptron iEQ45 series of mounts is aimed at the astro-imaging enthusiast. It's  has a light-weight head with a high capacity to weight ratio, and the unique AccuAlign TM GPS driven polar alignment system makes for quick, easy setup in the field.

SKU: IOP-8000E-42P
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Product Description

The iOptron iEQ45 Pro Equatorial Mount is excellent for the professional astrophotographer due to its AccuAlign system that uses GPS technology for quick alignment for easy setup which is necessary in CCD imaging. It also has a light weight head while still maintaining a high capacity payload.

iOptron has taken all the fundamentals of the original iEQ45 Pro and added some new features/improvements. The most noticeable mechanical change is the replacement of a servo motor into a stepper motor. Some of these improvements and changes include:

  • Stepper motor (instead of servo)
  • Higher gear ratio (now same gears as CEM60)
  • A number of cosmetic changes (ex. plugs moved to sides, plastic covers are singular piece, etc.)








Name iOptron - iEQ45 Pro Equatorial Mount with 42" Pier
Manufacturer iOptron
Model IOP-8000E-42P
In The Box iOptron iEQ45 Pro EQ Mount Head Dual Saddle Plate (D/V Compatible) AccuAlign Polar Finder 42" Portable Pier
Azimuth Adjustment ±6°
Bearings Ø80mm RA and Ø68mm DEC
Communication Ports RS232
Computer Hand Control Go2Nova® 8407+,359,000 objects database, star recognition
Counterweights 11 lbs (5kg) X 2
Counterweight Shaft Ø28 mm, Stainless steel
Declination Worm Wheel 228 teeth, M=0.5, aluminum
Declination Axis Ø40 mm, steel
GPS Build-in 32 Channel GPS
Latitude Adjustment 5~70°
Level Indicator Precision bubble
Motor Drive 1.8° stepper motor, 128 microsteps
Mount Equatorial
Mount Base Size Ø150mm
Mount Weight 25 lbs
Operating Temperature -20~45°C
Payload Capacity 45 lbs
PC Computer Control Yes (ASCOM)
Periodic Error Correction Permanent PEC
Polar Axis Scope AccuAlignTM G2 polar scope, dark field illumination
Power Consumption 0.45A(Tracking) 0.75A(GOTO)
Power Requirements DC 12V (11~15V) 2A
Resolution 0.09 arcsec
Right Ascension Axis Ø50 mm, steel
Right Ascension Worm Wheel 256 teeth, M=0.5, aluminum
Slew Speeds 9 speeds, 5.83°/sec max (1400X)
Tracking Rates Sidereal/Solar/Lunar/King/User
Transmission Synchronous belt
Tripod 2" stainless steel tripod


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In the Box

iOptron iEQ45 Pro EQ Mount Head
Dual Saddle Plate (D/V Compatible)
AccuAlign Polar Finder
42" Portable Pier