iOptron SmartStar A MC90 GoTo GPS Maksutov Cassegrain Telescope - EQ Wedge Mount

Item #IOPT012-1

  • List Price:
  • $699.00
  • Your Price:
  • $598.00
  • You Save:
  • $101.00 USD15% + FREE Shipping
  • 90mm Maksutov-Cassegrain telescope
  • 1200mm Focal Length
  • Red Dot finderscope for locating objects
  • Heavy duty stainless steel tripod
  • The Cube™ Dual Mount
Questions? Let our experts help!
  • Description

    Our 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. This light weight, ultra-compact scope offers a great combination of power and transportability, and brings stargazing to a whole other level.

    Dual Mount: Alt-Azimuth & German Equatorial – The Cube™

    The SmartStar™-A-MC90 comes with our patented Dual Mount: Alt-Azimuth & German Equatorial, a.k.a. 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 a dove-tail connection. The mount can be level for Alt-Azimuth or locked into position for German Equatorial. In addition, there are no “dead spots” – so you can point your telescope to ANYWHERE above the horizon, whereas, other mounts block the telescope tube at certain points of rotation. 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.

    The most easy to understand controller on the market

    The GoToNovaTM 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 telescope and select where you want to go.

    More precise speed control for viewing objects

    The control 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 the functionalities of the already powerful system. With the USB2COM driver installed, the USB port works as an RS232 serial port. It supports firmware upgrades and computer control. With ASCOM protocol, you can control your telescope with most ASCOM compatible software. This enables you to utilize the CPU, large screen, and 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-inch heavy-duty stainless steel the SmartStar™ Tripod is sturdy yet elegant, and 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.

    GoToNovaTM Computerized Control System

    The revolutionary GoToNovaTM 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 with the simple push of a button. The database can also be upgraded to include over 130,000 celestial objects. So your control system can grow as you increase your level of star gazing!

    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 GoToNovaTM 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.


    • 90mm Maksutov-Cassegrain telescope
    • 1200mm Focal Length
    • Red Dot finderscope for locating objects
    • Heavy duty stainless steel tripod
    • Dual Mount: Alt-Azimuth and German Equatorial– The Cube™-- The only mount of its kind for ultimate rotation and universal compatibility
    • 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)
    • 32-channel GPS module standard on all A series telescopes

    Supplier SKU


    Shipping Restrictions

    Ships to most international destinations, APOs, and FPOs.

  • Dimensions & Specifications




    8 x AA

    Battery Included





    Astro Blue

    Eyepiece 1





    Red Dot

    Focal Length


    Focal Ratio


    Good for Astrophotography






    Highest Useful Magnification


    Mount Design

    Single Fork Arm

    Objective Lens Size Code


    Optical Design

    Maksutov Cassegrain

    Recommended Usage

    Viewing the Planets
    Viewing the Moon

    Telescopes Series

    iOptron SmartStar Maksutov Cassegrain Telescopes

    User Level

    For the Beginner


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  • Product Guarantee

    We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

    Manufacturer Warranty

    This product has a limited 1 year manufacturer's warranty covers against defects is provided. If you have specific questions about this product's warranty please contact iOptron's Customer Service department at 1.866.399.4587.

    Return & Exchange Policy

    At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

Ask The Experts

Have questions about an item or need advice on selecting the right astronomy gear? Our team of telescope experts is here to help! Avid amateur astronomers themselves, they've tested products in the field and can provide personalized recommendations.

You can reach our Customer Support line at 1-800-303-5873. We're open 8 a.m. to 8 p.m. Central Time, Monday through Friday and 9 a.m. to 4 p.m. on Saturday.

After hours? Drop us an email at We'll get back to you as soon as possible, usually within 1 business day.