iOptron® iEQ45 AZ with 42" Pier       priced at $1,899.-

iOptron® iEQ45 AZ with 48” Pier        priced at $1,959.-



The iEQ45-AZ German equatorial-altazimuth GOTO mount is the latest development of iOptron’s premium equatorial mount, the iEQ45. It offers superb astro-imaging capability and portable visual astronomy. With the ability to change from altazimuth mode to equatorial mode you have a product with high performance in both positions.


The iEQ45-AZ mount offers the next generation GOTO technology from iOptron —not to mention built-in 32-bit GPS. With a payload of 45 lbs. for EQ mode and 90 lbs for AA mode (dual mounting) – it comes standard with a calibrated dark field illumination polar scope and a rigid portable pier. It also fits both Vixen and Losmandy-type mounting plates. Its lighter weight (only 25 lbs.) makes it much easier to carry.




◦ Specialized astrophotography mount ideal for entry-level and intermediate astrophotographers

◦ Portable, compact, and sturdy German equatorial (EQ) –altazimuth (AA) mount with the highest

   Payload/Mount ratio in the category

◦ Payload: 45 lbs (20 kg) for EQ mode (excluding counterweight); 55 lbs (25 kg) for AA mode;

   or 55 lbs (25kg) + 33 lbs (15 kg) for AA dual mounting

◦ Mount weight: 25 lbs (11.4 kg)

◦ Ultra-accurate tracking with temperature-compensated crystal oscillator (TCXO)

◦ FlexiTouchTM Gap-free structure for both R.A. and DEC worm gears

◦ Angular contact bearing for R.A and DEC axles

◦ Resolution: 0.09 arc second

◦ Go2Nova® 8407 controller with Advanced GOTONOVA® GOTO Technology

◦ Permanent periodic error correction (PPEC)

◦ Polar alignment routine for those who can’t see the Pole Star

◦ Built-in 32-channel Global Positioning System (GPS)

◦ Integrated ST-4 autoguiding port capable of reverse guiding with auto-protection

◦ Calibrated polar scope with dark-field illumination and easy polar alignment procedure, allowing

   for fast and accurate polar alignment

◦ iOptron port for electronic focuser, laser pointer, planetary dome control

◦ RS232 port for computer control via ASCOM platform

◦ Heated hand controller for low temperature operation (as low as -20°C)

◦ 6” Vixen/Losmandy dual dovetail saddle

◦ 6 inch rigid portable pier (48-inch standing height)

◦ Optional secondary Vixen/Losmandy dual dovetail saddle

◦ Optional counterweight extension shaft

◦ Optional carrying case

◦ Optional PowerWeight rechargeable battery pack

Technical Specifications:



Mount weight

Right Ascension worm wheel

Declination worm wheel

Right Ascension axis shaft

Declination axis shaft

Right Ascension bearing

Declination bearing

Worm gears

Motor drive



Latitude adjustment range

Azimuth adjustment range


Polar Scope

Level indicator

Hand Controller




Quiet slewing mode

Cord anti-wrapping in AA mode

Counterweight shaft



Dovetail saddle

Power consumption

Power requirement

AC adapter

Serial port

RS232 port

Autoguide port

Firmware upgrade

PC computer control

Operation temperature

German Equatorial/Alt-azimuth Mount

45 lbs (20kg) for EQ, 55 lbs (25kg)+33lbs(15kg) for AA

20 lb (11.4kg)

F130mm, 216 teeth aluminum

F115mm, 192 teeth aluminum

F50mm steel

F40mm steel

F80mm angular contact bearing

F68mm angular contact bearing


Planetary Gear Reducer DC servo with encoder

0.09 arc seconds

Synchronous belt/Gear

5° ~ 70° or 90°

± 6º

Internal 32-channel GPS

AccuAligning™ polar scope with dark field illumination

Precision bubble

Go2Nova® 8407 with 358,000 objects database

Permanent PEC

Sidereal, Solar, Lunar,King and User Defined





11 lb (5kg) X 2 (included)

42 or 48-inch standing height

6” Vixen/Losmandy dual dovetail saddle

0.25A(Tracking), 1.2A(GOTO)

12V DC(11 ~ 15V), 2Amp

100V ~ 240V (included)

Yes (on hand controller)

Yes (on mount)




-20°C ~ 40°C

iStar Optical and iOptron Mounts have partnered to create a winning combination.


A mount company that cares as much about quality as we do. We use the iOptrons personally. We now offer iOptrons mounts separately or as packages that include our scopes. Ask us about special pricing for complete packages including OTA, tube rings, dovetail and iOptrons mount.


Coming soon complete “Turn Key” packages for imaging including OTA, mount and guidescope.