Orion 180mm Maksutov Cassegrain OTA

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Orion 180mm Maksutov Cassegrain OTA
Item # OR-9969
1 Questions(s)

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  • 7.1" aperture and 2700mm focal length (f/15) excels for high-power solar system use.
  • The Orion 180mm Maksutov Cassegrain OTA boasts enough aperture to collect light for pleasing views of more narrow Deep Sky objects such as planetary nebulas and globular star clusters
  • Meniscus lens is fully multi-coated for maximum light transmission.
  • The Orion 180mm Maksutov Cassegrain OTA measures just 22" long and weighs less than 16 lbs for compact portability and easy storage.
  • Visual back accepts 1.25" diagonals and accessories. Includes Starry Night software.
  • Note: To save shipping delays, this telescope (or mount) will be drop-shipped directly from Orion's warehouse to you. Please read the details at the bottom of the product description for more information.


Orion 180mm Maksutov Cassegrain OTA

Looking for something to satisfy your appetite for power? Try an Orion big Mak! For the most demanding enthusiast, the Orion 180mm Mak OTA sets a new standard for superb high-power performance in a remarkably compact design. With 7" of aperture and that long focal length Mak aficionados love, you'll get tack-sharp, high-contrast views and clearly defined photos with subtle detail.

The Orion 180mm (7.1") Maksutov-Cassegrain optical system has 2,700mm focal length (f/15). With 44% greater light grasp than a 150mm Mak, you'll get brighter images and better resolution. No other optical design can deliver such potent optical specifications in a package that measures just 22" long and weighs in at less than 16 lbs. The meniscus lens of the Orion 180mm Maksutov Cassegrain OTA is fully multicoated for maximum light transmission, further enhancing image brightness. The visual back accepts 1.25" eyepieces and accessories, and a dovetail bracket on the rear cell accepts any Orion finder scope or EZ Finder. The dovetail rail on the underside of the tube attaches to your Orion SkyView Pro, Sirius, or Atlas mount.

The Orion 180 "Big" Mak OTA offers the amazing image definition Maks are known for, but with a hefty 7" of aperture for brighter images. One-year limited warranty.

Orion Product Number: 9969

Drop-Ship Policy Note: To expedite your order, this telescope (or mount) will be drop-shipped directly from Orion's warehouse to you and availability will be based on Orion's inventory levels. OPT will contact you immediately if there are any delays on shipment and will provide an estimated lead-time. If the product is not readily available, you will have the option to keep the order open with a 10% deposit. Additional Orion items may be drop-shipped along with the telescope (or mount), or shipped directly from our own OPT stock. Non-Orion items will be shipped directly from the OPT warehouse. As a courtesy, OPT will cover all costs for splitting orders and separate shipments.

If a return issue should arise with an Orion drop-ship item, please note that OPT will be required to issue a minimum 10% restocking fee for its return to Orion. With this exception, all other conditions of the OPT return policy apply. Please feel free to call us at 1-800-483-6287or e-mail us if you have any questions on Orion Drop-Ship product availability or on this policy. We're here to serve you!
Additional Information

Additional Information

SKU OR-9969
Manufacturer Orion
Telescope Series Orion Optical Tube Assemblies
Optical Design Maksutov-Cassegrain
Mount Type None - Optical Tube Only
Warranty 1 Year Warranty
Telescope Aperture 7"
Telescope Focal Length 2700mm
Telescope Focal Ratio f/15
Highest Useful Magnification 300x
Limiting Stellar Magnitude 13.9
Optical Coatings Multi-Coated
Tube Color or Finish Orion Grey Pearl
OTA Mount Type Vixen-Style Dovetail
Optical Tube Outer Diameter Not provided by manufacturer
Length of Optical Tube 22.5"
Optical Tube Weight 15.9 lbs.
Mount Weight N/A
Total Telescope Weight 15.9 lbs.
Objects in Database N/A
Alignment Procedure N/A
Tripod Type Included None, Sold Separately
CD ROMs Included Starry Night SE
Eyepiece(s) Included None
Diagonal Included? No - Sold Separately
Dew Shield Included? No, Sold Separately
Power Adapter Included None - Does Not Require Power
Counterweights Included N/A
Finder Included None
Included Items

Included Items

  • Orion 180mm Maksutov Cassegrain OTA
  • 1.25" visual back
  • Dovetail mounting rail
  • Dovetail finder base
  • Dust cap
  • Starry Night special edition software
Questions & Answers

Product Questions

What is the % of obstruction by the meniscus lens?
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