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Beginner Intermediate Advanced
Price:
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Best for viewing:
Lunar & planetary Brighter deep sky Fainter deep sky Lunar & bright deep sky
Best for imaging:
Lunar & planetary Deep sky Lunar, planetary & terrestrial
Optical design type:
Maksutov-Cassegrain Ritchey-Chretien
Mount type:
Altazimuth Equatorial Optical Tube without Mount
Telescope aperture range:
Up to 102mm 103mm - 152mm 153mm - 203mm
Telescope f/ratio range:
f/8.0 - f/10.0 Over f/10.0
Computerized type:
Go To (automatic object location) Not Computerized
Assembled weight range:
Up to 2.3kg 4.6kg - 11.3kg 11.4kg - 18.1kg 18.2kg - 34kg
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Cassegrain Telescopes
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Cassegrain Telescopes

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Orion Apex 127mm Maksutov-Cassegrain Telescope
Outstanding image quality, incredible range of use, and portability make the Apex 127mm Mak-Cass perfect for the intermediate viewer. Use with any mount or tripod for nightitme or daytime viewing.
£ 323.99
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Orion StarMax 90mm TableTop Maksutov-Cassegrain Telescope
This table top 90mm Maksutov-Cassegrain is a lightweight and compact telescope for the beginning viewer that you can take anywhere. The red dot finder scope makes it easy to find objects in the sky. The mount can also be attached to a photo tripod.
£ 176.99
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Orion StarMax 127mm Equatorial Maksutov-Cassegrain Telescope
With its high performance and long focal length optics along with ease of setup and portability, the StarMax 127mm is ideal for the intermediate astronomer. Add the optional EQ-3M single and dual-axis electronic drives for hands-free tracking.
£ 529.99
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Orion Apex 90mm Maksutov-Cassegrain Telescope
The Orion Apex 90mm Maksutov-Cassegrain telescope is both high-power and compact - perfect for the beginner for both astronomy and terrestrial viewing. The correct-image finder scope makes locating objects easy.
£ 174.99
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Orion 180mm Maksutov-Cassegrain Telescope Optical Tube
Superb high-power performance, compact lightweight design, sharp high-contrast view, and clearly defined astrophotography capabilities make the Orion 180mm Maksutov-Cassegrain perfect for the advanced planetary observer or astrophotographer.
£ 879.99
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Orion StarSeeker IV 127mm GoTo Mak-Cass Telescope
This compact "Grab-and-GoTo" 127mm Mak-Cass grabs a lot of light with its 5" objective lens, and its extra-long f/12.1 optics provide stunning views of bright deep-sky objects, the planets, and Moon. Included eyepieces provide 67x and 154x views.
£ 599.99
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Orion StarSeeker IV 102mm GoTo Mak-Cass Telescope
This portable 102mm "Grab-and-GoTo" Mak-Cass grabs a lot of light with its 4" objective lens, and its extra-long f/12.7 optics provide stunning views of bright deep-sky objects, the planets, and Moon. Included eyepieces provide 57x and 130x views.
£ 519.99
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Orion Apex 102mm Maksutov-Cassegrain Telescope
The compact yet powerful Orion Apex 102mm Maksutov-Cassegrain telescope is great for observers wanting to get fantastic views during the night or day. Small enough that you can tuck it into a daypack or store it on a bookshelf.
£ 215.99
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Orion StarSeeker IV 150mm GoTo Mak-Cass Telescope
This big, yet compact GoTo 150mm-aperture Mak-Cass collects a ton of light with its 5.9" objective lens, and its extra-long f/12 optics provide exceptional views of the planets, Moon and deep-sky gems. Included eyepieces provide 78x and 180x views.
£ 929.99
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Orion 10" f/8 Ritchey-Chrétien Astrograph Telescope
Go after even the most elusive and faint deep-sky targets with the Orion 10" f/8.0 Ritchey-Chretien Astrograph. Featuring flat-field, virtually coma-free optics for superb imaging performance, the Orion 10" RC boasts a plethora of deluxe features.
£ 2,027.99
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Orion 8" f/8 Ritchey-Chretien Astrograph Telescope
This 8" aperture Ritchey-Chretien optical tube is ideal for the advanced astrophotographer using small format CCD cameras and DSLRs. Offers a wide, fully illuminated field with pinpoint star clarity and includes an array of high-end features.
£ 840.99
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Orion 6" f/9 Ritchey-Chretien Astrograph Telescope
This compact 6"-aperture Ritchey-Chretien optical tube provides advanced astrophotography performance at an incredible price. It is ideal for use with small-format CCD cameras as well as DSLR cameras for deep-sky and solar system astrophotography.
£ 440.99
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Orion 150mm Maksutov-Cassegrain Telescope Optical Tube
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. Sold as OTA only, without accessories.
£ 529.99
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Orion SkyView Pro 180mm Maksutov-Cassegrain Telescope
The Orion SkyView Pro 180mm Maksutov Cassegrain telescope is capable of very high-magnification vieiwing and allows you to view planets, close double-stars, clusters, and well-defined deep-sky targets in fine detail.
£ 1,329.99
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Orion Sirius EQ-G GoTo 180mm Maksutov-Cassegrain Telescope
For the advanced astronomer, the Orion Sirius EQ-G GoTo 180mm Maksutov-Cassegrain telescope excels. Features a very long focal length for detailed solar system views, and the GoTo system allows you to view over 42,000 objects at the push of a button.
£ 1,763.99
If purchased separately
£ 1,959.86
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Orion StarSeeker IV 127mm GoTo Mak-Cass Kit
The value-packed StarSeeker IV 127mm GoTo Mak-Cass Telescope Kit is a great setup for beginning amateur astronomers since it's loaded with so many great accessories and features a complete GoTo telescope system.
£ 619.99
If purchased separately
£ 644.38
Compare

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Cassegrain telescopes (or catadioptric telescopes) offer versatility and high magnifying power. They employ both mirrors and lenses that fold the light path, allowing a compact tube length. Orion Telescopes carries both Schmidt-Cassegrain telescopes and Maksutov-Cassegrain telescopes in a variety of sizes, all of which provide excellent image quality and all-around viewing capability. Both types of Cassegrain telescopes feature a front corrector lens that ensures sharp images. Small Maksutov-Cassegrain telescopes make great grab and go scopes, while Schmidt-Cassegrain telescopes accept a wide variety of accessories for both observing and astrophotography applications.
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About Orion Telescopes & Binoculars

Since 1975 Orion Telescopes & Binoculars has been offering telescopes for sale direct to customers. Now an employee-owned company, we pride ourselves on 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, and Advanced. 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. Because we sell direct, we can offer you tremendous value at a great price.

Orion binoculars are known for quality optics at a great price. We offer binoculars for every viewing interest, including astronomical binoculars, compact binoculars, waterproof binoculars, birding binoculars, and sport and hunting binoculars.

Orion's telescope and astrophotography accessories will enhance your telescope enjoyment without breaking the bank. Expand your viewing experience with accessories ranging from moon filters to power-boosting Barlow lenses to advanced computerized telescope mounts. Capture breathtaking photos with our affordable astrophotography cameras. And when you're stargazing, Orion's telescope cases and covers, observing gear, red LED flashlights, astronomy books and star charts will make your observing sessions more convenient, comfortable and meaningful.