iOptron 150mm Maksutov-Cassegrain OTA

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  • Regular price $848.00

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  • Aperture: 150mm (6")
  • Focal Ratio: f/12
  • Focal Length: 1800mm
  • Optical Design: Maksutov Cassegrain


iOptron 150mm Maksutov-Cassegrain OTA

The 6" iOptron Rumak-type Maksutov-Cassegrain is ideal for the serious amateur astronomer who wants apochromatic refractor-type performance at an affordable price. The multicoated optics provides almost similar results as 5-inch apochromatic refractors at a fraction of the cost.

You will be amazed at the photos you take with the MAK 150mm surprisingly, an f12 that can take phenomenal photos of Saturn's rings and M31! The precision design and engineering of the optics produces images you would not expect in such a light tube.

The MAK 150mm from iOptron is the only MAK of its kind that comes with a dual speed focuser for fine-tuning your images. Also included is an attachable dew shield for better performance in cold temperatures.

So, if you want to see phenomenal images at an affordable price, then you need to get your hands on the MAK 150mm from iOptron!
iOptron Mak 150 Features
  • Rumak Maksutov-Cassegrain optics
  • Aperture: 150mm
  • Focal Length: 1800/ f12
  • Eyepiece holder with compression ring
  • 8X50 Finderscope
  • Twist-lock aluminum dew-shield
  • Dual-speed focuser


Aperture152 mm (6")
Finder Included8 x 50 Optical Finder
Focal Ratiof/12
Limiting Stellar Magnitude13.3
Optical CoatingsFully Multi Coated
Optical DesignMaksutov Cassegrain
OTA Length21 3/4" (27 1/8" with dew shield)
OTA Outer Diameter7"
OTA Weight13.4 lbs.
Warranty2 Year Warranty


  • iOptron 6" Rumak-type Maksutov-Cassegrain Telescope
  • Eyepiece Holder
  • Compression Ring
  • 8X50 Finderscope
  • Dew Shield
  • Dual Speed Focuser

Customer Reviews

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Ask a Question
  • Very happy with this scope. Would like to add electronic (computer-controlled) focusing. iOptron tech support had no suggestions. Would appreciate suggestions/recommendations on vendors to contact. Thanks.

    At this point, your best bet would be to contact Rigel Systems to see if they can motorize this focuser. It does not appear that iOptron has an option to do so.

  • Is the visual back ( not the 2 in to 1.25 adapter) threaded so it can be removed? I have a 2in sct focuser.

    Never mind. I see it has a non standard visual back, but comes with an adapter to use with standard sct accessories

  • Is the visual back ( not the 2 in to 1.25 adapter) threaded so it can be removed? I have a 2in sct focuser.

    Good afternoon, I have an email out to iOptron to see if they have an answer. I'll post their response as soon as I receive it.

  • What's the circumference of the OTA for the purposes of using mounting rings instead of the short vixen rail?

    According to iOptron, 6.75 inches is the outer diameter of the OTA.