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Catadioptric (Cassegrain) Telescopes
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Celestron NexStar Evolution 8 203mm f/10 EdgeHD Aplanatic Cassegrain GoTo Telescope with StarSense AutoAlign
B&H # CENE8ESTR MFR # 12096
Key Features
- 203mm Aplanatic Catadioptric OTA
- 2032mm Focal Length, f/10 Focal Ratio
- Flat-Field, Coma-Free EdgeHD Optics
- StarBright XLT Optical Coating System
Available in other Styles, Configurations & Kits
$2,94900
In Stock
Other Buying Options
Celestron EdgeHD 9.25" f/10 Aplanatic Schmidt-Cassegrain Telescope (OTA Only)
B&H # CEEDGEHD925 MFR # 91040-XLT
Key Features
- 9.25" (235mm) Schmidt-Cassegrain OTA
- 2350mm Focal Length, f/10 Focal Ratio
- StarBright XLT Optical Coating System
- EdgeHD Aplanatic Field-Flattener Design
Available in other Styles, Configurations & Kits
$2,99900
In Stock
Celestron NexStar 4SE 102mm f/13 Maksutov-Cassegrain GoTo Telescope
B&H # CEN4SE MFR # 11049
Key Features
- 102mm Maksutov-Cassegrain Telescope
- 1325mm Focal Length, f/13 Focal Ratio
- StarBright XLT Optical Coating System
- NexStar+ Computer Hand Controller
Available in other Styles, Configurations & Kits
$59999
In Stock
Celestron NexStar 8SE 203mm f/10 Schmidt-Cassegrain GoTo Telescope
B&H # CEN8SE MFR # 11069
Key Features
- 203mm Schmidt-Cassegrain Telescope
- 2032mm Focal Length, f/10 Focal Ratio
- StarBright XLT Optical Coating System
- Single-Fork Motorized GoTo Alt-Az Mount
Available in other Styles, Configurations & Kits
$1,25900
In Stock
Other Buying Options
Sky-Watcher 102mm f/13 Maksutov-Cassegrain Telescope (OTA Only)
B&H # SK102MMMCOTA MFR # S11510
Key Features
- 102mm Aperture Maksutov-Cassegrain OTA
- 1300mm Focal Length, f/13 Focal Ratio
- Limited-Diffraction Optical System
- Fully Multi-Coated Optics
Available in other Styles, Configurations & Kits
$27200
In Stock
Sky-Watcher Virtuoso 90mm f/13.9 Maksutov-Cassegrain Multi-Purpose Motorized Mount
B&H # SKVVM MFR # S11750
Key Features
- 90mm Maksutov-Cassegrain OTA
- 1250mm Focal Length, f/13.9 Focal Ratio
- Camera, Camcorder, Smartphone Mounts
- Motorized Alt-Az Tabletop Mount
$35900
In Stock
Celestron NexStar 127SLT 127mm f/12 Maksutov-Cassegrain GoTo Telescope
B&H # CEN127SLT MFR # 22097
Key Features
- 127mm Maksutov-Cassegrain OTA
- 1500mm Focal Length, f/12 Focal Ratio
- Single-Arm Motorized Alt-Az Mount
- NexStar Computer Hand Controller
Available in other Styles, Configurations & Kits
$61900
In Stock
Celestron NexStar Evolution 9.25 235mm f/10 AZ GoTo Schmidt-Cassegrain Telescope
B&H # CENSE9.25K MFR # 12092
Key Features
- 235mm Schmidt-Cassegrain OTA
- 2350mm Focal Length, f/10 Focal Ratio
- StarBright XLT Optical Coating System
- Wireless Control with iOS/Android App
Available in other Styles, Configurations & Kits
$2,84900
In Stock
Celestron CPC Deluxe 800 HD 8" f/10 Cassegrain GoTo AZ Telescope
B&H # CE11007K MFR # 11007
Key Features
- 203.2mm Focal Length, f/10 Focal Ratio
- StarBright XLT Optical Coating System
- EdgeHD Aplanatic Field-Flattener Design
- Motorized GoTo Dual Fork Azimuth Mount
Available in other Styles, Configurations & Kits
$3,19900
In Stock
Sky-Watcher 127mm f/13 Maksutov-Cassegrain Telescope (OTA Only)
B&H # SK127MMMCOTA MFR # S11520
Key Features
- 127mm Aperture Maksutov-Cassegrain OTA
- 1500mm Focal Length, f/12 Focal Ratio
- Limited-Diffraction Optical System
- Fully Multi-Coated Optics
Available in other Styles, Configurations & Kits
$55000
In Stock
Celestron C6-A-XLT CG-5 6" f/10 Schmidt-Cassegrain Telescope (OTA Only)
B&H # CEC6AXLT MFR # 91010-XLT
Key Features
- 6" (150mm) Schmidt-Cassegrain OTA
- 1500mm Focal Length, f/10 Focal Ratio
- StarBright XLT Optical Coating System
- 25mm Eyepiece and 90° Star Diagonal
Available in other Styles, Configurations & Kits
$83995
In Stock
Celestron NexStar 5SE 125mm f/10 Schmidt-Cassegrain GoTo Telescope
B&H # CEN5SE MFR # 11036
Key Features
- 125mm Schmidt-Cassegrain Telescope
- 1250mm Focal Length, f/10 Focal Ratio
- StarBright XLT Optical Coating System
- Single-Fork Motorized GoTo Alt-Az Mount
Available in other Styles, Configurations & Kits
$93900
In Stock
Celestron NexStar 6SE 150mm f/10 Schmidt-Cassegrain GoTo Telescope
B&H # CEN6SE MFR # 11068
Key Features
- 150mm Schmidt-Cassegrain Telescope
- 1500mm Focal Length, f/10 Focal Ratio
- StarBright XLT Optical Coating System
- Single-Fork Motorized GoTo Alt-Az Mount
Available in other Styles, Configurations & Kits
$1,09900
In Stock
Other Buying Options
Celestron C9 1/4-A XLT 9.25" f/10 Schmidt-Cassegrain Telescope (OTA Only, CGEM Dovetail)
B&H # CEC9.25AXLT MFR # 91027-XLT
Key Features
- 9.25" Schmidt-Cassegrain OTA
- 2350mm focal length, f/10 Focal Ratio
- StarBright XLT Optical Coatings
- 25mm Eyepiece, 90° Diagonal
Available in other Styles, Configurations & Kits
$1,89995
In Stock
Celestron NexStar Evolution 8 203mm f/10 Schmidt-Cassegrain GoTo Telescope
B&H # CENSE8 MFR # 12091
Key Features
- 203mm Schmidt-Cassegrain OTA
- 2032mm Focal Length, f/10 Focal Ratio
- StarBright XLT Optical Coating System
- Wireless Control with iOS/Android App
Available in other Styles, Configurations & Kits
$2,19900
In Stock
Celestron EdgeHD 11" f/10 Aplanatic Schmidt-Cassegrain Telescope (OTA Only)
B&H # CE91050XLT MFR # 91050-XLT
Key Features
- 11" (280mm) Schmidt-Cassegrain OTA
- 2800mm Focal Length, f/10 Focal Ratio
- StarBright XLT Optical Coating System
- EdgeHD Aplanatic Field-Flattener Design
Available in other Styles, Configurations & Kits
$4,39900
In Stock
Explore Scientific FirstLight 100mm f/14 Alt-Az Maksutov-Cassegrain Telescope with Twilight Nano Mount
B&H # EXFLMAK100MC MFR # FL-MC1001400TN
Key Features
- 100mm Catadioptric OTA
- 1400mm Focal Length, f/14 Focal Ratio
- Fully Multi-Coated Optics
- Internal Focusing Mechanism
$37999
Special Order
Expected availability: 7-14 business days
Celestron Astro Fi 102mm f/13 Maksutov-Cassegrain Telescope
B&H # CEA102WIFIMK MFR # 22202
Key Features
- 102mm Maksutov-Cassegrain OTA
- 1325mm Focal Length, f/13 Focal Ratio
- 1.25" 10mm and 25mm Eyepieces
- Single-Arm Motorized Alt-Az Mount
$52995
In Stock
Sky-Watcher Skymax 102 AZ-GTi 102mm f/13 GoTo Maksutov-Cassegrain Telescope
B&H # SKS21120 MFR # S21120
Key Features
- 102mm Aperture Maksutov-Cassegrain OTA
- 1300mm Focal Length, f/13 Focal Ratio
- Limited-Diffraction Optical System
- Motorized Computer-Controlled AZ Mount
Available in other Styles, Configurations & Kits
$55080
In Stock
Sky-Watcher 150mm f/12 Maksutov-Cassegrain Telescope (OTA Only)
B&H # SK150MMMCOTA MFR # S11530
Key Features
- 150mm Aperture Maksutov-Cassegrain OTA
- 1800mm Focal Length, f/12 Focal Ratio
- Limited-Diffraction Optical System
- Fully Multi-Coated Optics
Available in other Styles, Configurations & Kits
$73920
In Stock
Sky-Watcher Skymax 127 AZ-GTi 127mm f/12 GoTo Maksutov-Cassegrain Telescope
B&H # SKS21130 MFR # S21130
Key Features
- 127mm Aperture Maksutov-Cassegrain OTA
- 1500mm Focal Length, f/12 Focal Ratio
- Limited-Diffraction Optical System
- Motorized Computer-Controlled AZ Mount
Available in other Styles, Configurations & Kits
$88000
In Stock
Celestron NexStar 8SE 203mm Schmidt-Cassegrain Telescope with EclipSmart Solar Filter Kit
B&H # CEN8SESFK
Key Features
- 2032mm Focal Length, f/10 Focal Ratio
- Single-Fork Motorized GoTo Alt-Az Mount
- Filters 99.999% Intense Visible Light
- Blocks 100% UV and IR Radiation
$1,32895
In Stock
Sky-Watcher 180mm f/15 Maksutov-Cassegrain Telescope (OTA Only)
B&H # SK180MMMCOTA MFR # S11540
Key Features
- 180mm Aperture Maksutov-Cassegrain OTA
- 2700mm Focal Length, f/15 Focal Ratio
- Limited-Diffraction Optical System
- Anti-Reflection Fully Multi-Coated Glass
Available in other Styles, Configurations & Kits
$1,50000
In Stock
Celestron NexStar 8SE 203mm f/10 Schmidt-Cassegrain GoTo Telescope with Eyepieces Kit
B&H # CEN8SEEPSK
Key Features
- Single-Fork Motorized GoTo Alt-Az Mount
- 7mm, 12mm & 18mm X-Cel LX Eyepieces
- NexStar+ Computer Hand Controller
- 40,000+ Object Database with Sky Tours
$1,53495
In Stock
Celestron NexStar Evolution 6 150mm f/10 Schmidt-Cassegrain GoTo Telescope
B&H # CENSE6 MFR # 12090
Key Features
- 150mm Schmidt-Cassegrain OTA
- 1500mm Focal Length, f/10 Focal Ratio
- StarBright XLT Optical Coating System
- Wireless Control with iOS/Android App
Available in other Styles, Configurations & Kits
$1,55900
In Stock
Other Buying Options
Celestron Advanced VX 9.25" SCT GoTo EQ Telescope
B&H # CEAVX925SCTK MFR # 12046
Key Features
- 9.25" f/10 OTA
- StarBright XLT Optical Coating System
- Motorized Computer-Controlled EQ Mount
- NexStar+ GoTo Hand Controller
$2,94900
In Stock
Celestron CPC Deluxe 1100 HD Computerized Telescope
B&H # CE11009K MFR # 11009
Key Features
- 11" EdgeHD Optical Tube
- 2800mm Focal Length, f/10 Focal Ratio
- Dual-Fork Mount with SkyAlign
- Heavy-Duty Tripod
$5,09895
In Stock
Celestron CGX EQ 925 EdgeHD SCT GoTo Telescope
B&H # CECGXEQ925TK MFR # 12056
Key Features
- 9.25" f/10 Schmidt-Cassegrain OTA
- EdgeHD Aplanatic Field-Flattener Design
- StarBright XLT Optical Coating System
- Motorized EQ Mount
Available in other Styles, Configurations & Kits
$5,29900
In Stock
Celestron CGEM II 1100 EdgeHD 11" f/10 SCT GoTo EQ Telescope
B&H # CECGEMII110K MFR # 12019
Key Features
- 11" (280mm) Schmidt-Cassegrain OTA
- 2800mm Focal Length, f/10 Focal Ratio
- StarBright XLT Optical Coating System
- EdgeHD Aplanatic Field-Flattener Design
Available in other Styles, Configurations & Kits
$5,69900
In Stock
Celestron EdgeHD 14" f/11 Aplanatic Schmidt-Cassegrain Telescope (OTA Only)
B&H # CE91060XLT MFR # 91060-XLT
Key Features
- 14" (356mm) Schmidt-Cassegrain OTA
- 3910mm Focal Length, f/11 Focal Ratio
- StarBright XLT Optical Coating System
- EdgeHD Aplanatic Field-Flattener Design
Available in other Styles, Configurations & Kits
$7,49900
Special Order
Expected availability: 3-5 weeks
YOUR RECENTLY VIEWED ITEMS
Learning About Catadioptric Telescopes
The three major types of reflecting telescopes are Newtonian, Schmidt-Cassegrain (SCTs), and catadioptric (Cassegrain). The catadioptric telescope has dual mirrors to create a folded optical path. Unlike original reflectors (Newtonian), with catadioptric reflectors, light is reflected off the sides of the telescope instead of the back. SCTs have the same folded optical path, but include a thin correction lens at the front of the scope to improve the final image. Maksutov-Cassegrain telescopes have a unique feature as well, a negative lens at the entrance pupil. The main difference between Maksutov and other reflector telescopes is that they don't require alignment before use.
Choosing a Cassegrain Telescope
Select the Cassegrain telescope that fits your specific viewing needs, as not all of them offer the same features. Maksutov-Cassegrain options provide compact sizes and reliable optics for people who live in the city, and they're primarily designed for viewing larger planets and dual stars. SCTs are bulkier but allow viewers to observe galaxies and singular stars in addition to planets. SCT telescopes produce better results in open spaces because city lights can cause glare and poor viewing conditions. Selecting additional accessories such as telescope diagonals and prisms can provide you with clearer planetary viewing and increase detail.
Computerized Telescopes
Celestron-NexStar telescopes come in computerized versions, with Wi-Fi modules that can connect directly to your mobile device via the SkyPortal app. Celestron is famous for creating high-quality refractor telescopes for astronomical and terrestrial viewing. Glass lenses inside these telescope grab light and bend it to produce an image.
B&H Photo and Video carries telescopes and accessories such as cases, lens filters, and stands, to give you the best viewing experience. Amateur astrologists or telescope enthusiasts can also browse through a large selection of all-in-one telescope kits.