Call 800-422-7876
OTA
The optical tube is really the heart of your night time exploration. Sizes range from 50mm to 20" in diameter as well as f/ratios from f/2.2 to f/15. The optical designs range from simple doublet refractors to complex cassegrains with built-in field flatteners. There is literally something for everyone here, you just have to decide what path you want to walk down. We are always here to help with any questions you have.
Filters
- Astro-Tech CFT Refractor (0)
- Astro-Tech ED Refractors (0)
- Astro-Tech EDL Refractors (0)
- Astro-Tech EDP Refractor (0)
- Astro-Tech EDQ Refractors (0)
- Astro-Tech EDT Refractors (0)
- Astro-Tech EDX Refractors (0)
- Astro-Tech Imaging Newtonians (0)
- Astro-Tech Ritchey-Chretiens (2)
- Celestron EdgeHD Optical Tubes (1)
- Celestron Optical Tube Assemblies (0)
- Celestron RASA Optical Tubes (2)
- Celestron Refractor Optical Tubes (0)
- Celestron SCT Optical Tubes (1)
- Explore Scientific APO Triplet Carbon Fiber (0)
- Explore Scientific APO Triplet FCD100 Carbon Fiber (0)
- Explore Scientific APO Triplets Essential Series (0)
- Explore Scientific AR Doublet (0)
- IOptron Maksutov (0)
- Lunt Modular (0)
- Questar 3.5” Maksutov Cassegrains (0)
- Questar 7” Maksutov Cassegrains (0)
- Sky-Watcher Espirit (0)
- Sky-Watcher Maksutov Telescopes (1)
- Sky-Watcher Pro ED APO (0)
- Sky-Watcher Quattro Imaging Newtonians (1)
- Takahashi Epsilon (0)
- Takahashi FC (0)
- Takahashi FS (0)
- Takahashi FSQ (0)
- Takahashi TOA and TSA (0)
- TeleVue Doublet APO (0)
- TeleVue Nagler-Petzval APO (0)
- ZWO FF Series (0)
-
Original price $1,599.00 - Original price $1,599.00Original price$1,599.00$1,599.00 - $1,599.00Current price $1,599.00| /
Celestron 8" EdgeHD Optical Tube, CGE/Losmandy Dovetail
Celestron4.9 star rating 11 ReviewsIn Stock4.9 / 5.0
11 Reviews
The EdgeHD high definition flat field optics of this Celestron 8" EdgeHD optical tube make true astrographic-quality 8" optics truly affordable. Th...
View full detailsOriginal price $1,599.00 - Original price $1,599.00Original price$1,599.00$1,599.00 - $1,599.00Current price $1,599.00| / -
Original price $2,079.00 - Original price $2,079.00Original price$2,079.00$2,079.00 - $2,079.00Current price $2,079.00| /
Celestron 8” Rowe-Ackermann Schmidt Astrograph (RASA 8)
Celestron5.0 star rating 2 ReviewsMore on the way5.0 / 5.0
2 Reviews
Flat field free of optical aberrations like field curvature, coma, astigmatism and chromatic aberration across an entire APS-C sensor. Unlike the ...
View full detailsOriginal price $2,079.00 - Original price $2,079.00Original price$2,079.00$2,079.00 - $2,079.00Current price $2,079.00| / -
Original price $1,199.00 - Original price $1,199.00Original price$1,199.00$1,199.00 - $1,199.00Current price $1,199.00| /
Astro-Tech 8" f/8 Ritchey-Chrétien Astrograph, Steel Tube
Astro-Tech4.4 star rating 9 ReviewsSold Out4.4 / 5.0
9 Reviews
The steel tube Astro-Tech AT8RC makes premium 8" Ritchey-Chrétien optics for serious deep space imaging available at the lowest price ever. Sky &am...
View full detailsOriginal price $1,199.00 - Original price $1,199.00Original price$1,199.00$1,199.00 - $1,199.00Current price $1,199.00| /Sold out -
Original price $830.00 - Original price $830.00Original price$830.00$830.00 - $830.00Current price $830.00| /
Sky-Watcher 8" Quattro 200P Imaging Newtonian S11210
Sky-Watcher5.0 star rating 2 ReviewsIn Stock5.0 / 5.0
2 Reviews
If you are an astro-photographer looking for a fast optical system at a fantastic price then the Quattro series is for you. The Sky-Watcher 8" f/4 ...
View full detailsOriginal price $830.00 - Original price $830.00Original price$830.00$830.00 - $830.00Current price $830.00| / -
Original price $1,249.00 - Original price $1,249.00Original price$1,249.00$1,249.00 - $1,249.00Current price $1,249.00| /
Celestron 8" SCT Optical Tube, CGE/Losmandy Dovetail
Celestron4.8 star rating 6 ReviewsMore on the way4.8 / 5.0
6 Reviews
The Celestron C8 was the first Schmidt-Cassegrain telescope available to amateur astronomers. This 8" f/10 optical tube is the direct, but much imp...
View full detailsOriginal price $1,249.00 - Original price $1,249.00Original price$1,249.00$1,249.00 - $1,249.00Current price $1,249.00| / -
Original price $1,395.00 - Original price $1,395.00Original price$1,395.00$1,395.00 - $1,395.00Current price $1,395.00| /
Astro-Tech 8" f/8 Ritchey-Chrétien Astrograph, Carbon Fiber Tube
Astro-Tech4.8 star rating 16 ReviewsSold Out4.8 / 5.0
16 Reviews
The Astro-Tech AT8RC is the first affordable 8" Ritchey-Chrétien with premium features available to the amateur astronomer who is into serious deep...
View full detailsOriginal price $1,395.00 - Original price $1,395.00Original price$1,395.00$1,395.00 - $1,395.00Current price $1,395.00| /Sold out -
Original price $2,140.00 - Original price $2,140.00Original price$2,140.00$2,140.00 - $2,140.00Current price $2,140.00| /
Sky-Watcher Starlux 190 Maksutov-Newtonian f/5.3 Optical Tube
Sky-Watcher4.5 star rating 2 ReviewsIn Stock4.5 / 5.0
2 Reviews
The Sky-Watcher f/5.3 190mm Maksutov-Newtonian optical system is a quality fast focal ratio performer that excels at deep space imaging and viewing...
View full detailsOriginal price $2,140.00 - Original price $2,140.00Original price$2,140.00$2,140.00 - $2,140.00Current price $2,140.00| / -
Original price $2,499.00 - Original price $2,499.00Original price$2,499.00$2,499.00 - $2,499.00Current price $2,499.00| /
Celestron 8” Rowe-Ackermann Schmidt Astrograph (RASA 8) Imaging Kit
CelestronIn StockFlat field free of optical aberrations like field curvature, coma, astigmatism and chromatic aberration across an entire APS-C sensor. Unlike th...
View full detailsOriginal price $2,499.00 - Original price $2,499.00Original price$2,499.00$2,499.00 - $2,499.00Current price $2,499.00| /