Compact f/12 Maksutov-Cassegrain telescope with 150mm (5.9″) aperture delivers high resolution images for terrestrial or celestial pursuits.
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The compact Orion 150mm Mak-Cass Telescope Optical Tube Assembly (OTA) opens up new vistas of the celestial landscape for your viewing pleasure, putting superior resolving power at your disposal. The optical tube’s 150mm-diameter (5.9″) Maksutov-Cassegrain optics take in 40% more light than its 127mm counterpart, which means this big Mak will resolve finer detail in lunar and planetary subjects and permit exploration of a wider array of deep-sky objects. Thanks to its combination of long focal length and substantial aperture, this compact catadioptric telescope delivers exceptionally crisp, high-power views of the Moon and planets, as well as smaller deep space objects like globular clusters and brighter planetary nebulas. This Mak-Cass OTA is an ideal high-power specialist for both observational astronomy and astrophotography.
Not limited solely to nighttime activities, the versatile 150mm f/12 Mak-Cass OTA can be used during the day for great terrestrial views when used with optional eyepieces and a 45° correct-image diagonal (sold separately).
The 150mm Mak-Cass telescope’s meniscus lens is fully multi-coated for maximum light transmission so views and images are delightfully sharp and high in contrast. Its long focal length of 1800mm (f/12.0) belies the telescope’s compact tube, which measures just 17.75″ long (including visual back), for excellent portability. The telescope’s 2″ visual back and included 1.25″ step-down adapter allows use of both 2″ and 1.25″ size diagonals, eyepieces and accessories (all accessories sold separately).
The sturdy aluminum Orion 150mm Maksutov-Cassegrain Telescope Optical Tube is outfitted with rugged metal front and rear cells. With its low-maintenance, closed-tube design, you won’t have to worry about collimation adjustments since the 150mm Mak-Cass optics are permanently and precisely aligned at the factory.
This video provides an overview of our 150mm Maksutov-Cassegrain Telescope Optical Tube.
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Since 1975 Orion Telescopes & Binoculars has been offering telescopes for sale direct to customers, with an unswerving commitment to best quality products, value and unmatched customer care. Our 100% satisfaction guarantee says it all. Orion offers telescopes for every level: Beginner, Intermediate, Advanced, and Expert. From our entry level beginner telescopes for amateur astronomers to our Dobsonian telescopes to our most advanced Cassegrain telescopes and accessories, you can find the best telescope for you.