iOptron SmartStar-A-MC90 Blue 90mm Maksutov-Cassegrain OTA, Altazimuth/German Equatorial Dual "Cube" Mount, #8402 GoToNova, Internal GPS, & Tripod

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About iOptron SmartStar-A-MC90

Astro Blue GPS Alt-Azimuth & German Equatorial Dual Mount "The Cube"...

The SmartStar-A comes with the patented Dual Mount: Alt-Azimuth & German Equatorial,...The Cube. This compact mount design is probably the most functional and flexible unit on the market

Both axis motors are built into a small single unit which is universally compatible with all telescopes using dove-tail connections. The mount can be level for Alt-Azimuth or locked into position for German Equatorial

Also, there are no "dead spots" so you can point your telescope to ANYWHERE above the horizon

This mount also comes standard with AC connection. An optional DC adaptor is available so you can plug your telescope motor into your car if you're camping or at any remote location

OTA's with dovetail connection & a weight limit of less than 11 lbs.(including finder scope & camera) are compatible with the SmartStarTM-A GPS AltAzi-EQ Dual Mount

(If you do not have a dovetail connection, attach OTA using mounting rings & dovetail made by the OTA manufacturer)

The most easy to understand controller on the market
The GoToNova Controller is much easier to use than other similar products. The hand controller is more intuitive with menu categories better organized. It also has the largest LCD screen on the market with 8 lines of content compared with others that only have 2 lines. Using the easy-to-use hand controller, you can easily set up your tele scope & select where you want to go

More precise speed control for viewing objects
The system also allows you to slew the telescope at 9 different drive speeds, keeping the object within the telescope's viewfinder for as long as you wish

USB Port
The 8402 hand controller comes with a USB port that tremendously expands functionalities of the already powerful system. With the USB2COM driver installed, the USB port works as an RS232 serial port. It supports firmware upgrades & computer control

With ASCOM protocol, you can control your telescope with most ASCOM compatible software, enabling you to utilize the CPU, large screen, & disk space of your PC/laptop. With a wide selection of software, your star gazing experience will never be the same again

Simply a better tripod
Made of 1" heavy-duty stainless steel the SmartStar Tripod is sturdy yet elegant, & gives the user unparalleled stability during operation. Solid construction joints keep your mount locked securely. With an all-metal support system your valuable telescope will keep still even on a windy night

GoToNova Computerized Control System
The revolutionary GoToNova computerized control system is by far the most technologically advanced automated tracking system available on the market today With a database of 80,000 celestial objects, including all of the most famous galaxies, nebulae, star clusters, not to mention the planets, you'll be able to enjoy star gazing at the push of a button.

iOptron SmartStar-A-MC90 Features

  • The SmartStar E-MC90 telescope system is the ideal choice for deep space viewing and astrophotography.
  • This 90mm-diameter Maksutov-Cassegrain Telescope dramatically reduces the chromatic aberration that plagues its Refractor counterparts and has a focal length of 1200mm
  • It has the magnification and light-gathering power of a refractor telescope five times its size delivering large, clear images of celestial objects deep in the night-sky.
  • This light weight, ultra-compact scope offers a great combination of power and transportability, and brings stargazing to a whole other level.
  • 32-Channel GPS Module
  • All A-series telescopes come standard with a 32-channel GPS module for fully automated operation and alignment.
  • Simply turn on the GoToNova Controller and the GPS module will automatically synchronize your telescope location and time with the GoToNovaTM computerized control system.
  • View celestial objects without having to manually punch in the date, time, latitude or longitude
  • AltAzi-Equatorial Dual Mount The Cube... The only mount of its kind for ultimate rotation
  • The Cube is Compatible with most tubes on the market:
  • Schmidt-Cassegrains 8" and below
  • Maksutov-Cassegrains 150mm and below
  • Newtonian reflectors (if more than 40" may block tripod at certain spots)
  • Refractors (not more than 40" )
  • OTA's with dovetail connection and a weight limit of less than 11 lbs. (including finder scope and camera) are compatible with the SmartStar-A GPS AltAzi-EQ Dual Mount
  • If you do not have a dovetail connection, attach your OTA using mounting ringsand dovetail made by the OTA manufacturer
  • Heavy duty stainless steel tripod
  • Includes the GoToNovaTM Controller. The most intuitive controller on the market.
  • 80,000 object database plus 256 user-defined objects
  • The largest LCD screen on the market with 8 lines and 21-character Hand Control with backlit LED buttons.
  • USB Port for PC Laptop control and firmware upgrades (ASCOM protocol)
  • Drive motor with 9-speed setting for precise tracking
  • Dual-axis Servomotor
  • Standard-equipment AC connection (Optional DC adaptor available)
  • Payload: 7-11 lbs, depending on tubes and attachments

iOptron SmartStar-A-MC90 Specifications

AltAzimuth Equatorial Dual Mount
OTA Connection
Dual-Axis DC Servomotor, DC 12V
GoTo Controller
USB Port
Firmware Upgrade
PC Computer Control
32 Channel, Standard
80,000 Objects
7-11 lbs, depending on tubes and attachments
1" Stainless Steel
8 AA (not included)
Case Weight
10.56 lbs
Optical Design
Clear Aperature
Focal Length, Ratio
1200mm f/13.3
Magnitude Limit
11.7th Magnitude
Dual-Axis,9-gear,Electric (1x,2x,8x,16x,64x,128x,256x,512x,Max)
Eye Pieces
K10, K20
Conversion Lens
Red Dot
GoTo System
GOTONova 80,000+ objects database

iOptron SmartStar-A-MC90 Reviews

Reviewed by 1 customers

(1 of 1 customers found this review helpful)


Tiny and capable


from Syracuse, NY  -  Avid Adventurer

I like the optics of MC90 very much. It is better than the one I owned (big name, higher in price but so so quality). The goto mount is well designed and easy to use. EQ option with the wedge is a great feature for biginners.

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