Optical Tube Assemblies (OTAs)

Normally available for pickup or shipping approx. 2-3 business days from your order Celestron EdgeHD 11 OTA See the Universe in HD EdgeHD is an apl...

Celestron C6 Striking a comfortable balance between power and portability, the Celestron C6 -A XLT OTA 6" f/10 Schmidt-Cassegrain Telescope is an i...

The Celestron C9.25-A is an unusual size with its 9.25” aperture and 2350 mm focal length, but many consider it to be the Goldilocks of optical tub...

Celestron EdgeHD 14 OTA See the Universe in HDEdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces aberration-free images...

The Celestron C8-A is the direct (but much improved) descendent of Celestron’s revolutionary C8 that transformed the hobby of astronomy when it was...

CDK20’s Key Features Large Aperture and Moderate Focal Ratio The CDK20 f/6.8 features a significant 508 mm aperture and an f/6.8 focal ratio. This ...

Capturing impressive deep-sky astroimages is easier than ever with Celestron’s Rowe-Ackermann Schmidt Astrograph (RASA 11) V2, the perfect companio...

The easy-to-maintain refractor is an excellent choice for beginners though to experts. Vixen achromatic objective lens delivers clear images with l...

Tele Vue 85 OTA The Tele Vue-85's mix of aperture and small physical size makes it a wonderful "go anywhere, do anything," crossover instrument—wit...

At a glance Vixen's flagship model with outstanding performance and ease of use for visual observation and astrophotography. Features a five-group...

Fluorite lens A fluorite lens with less chromatic aberration is used to create a sharp image with less color bleeding. Vixen standard Arimizo, equi...

Highly advanced "photo andvisual" optical design, the flagship of Vixen SD apochromatic refractors. Vixen AX103 features a three element objective ...

The 130mm aperture Newtonian reflector with excellent light gathering power is ideal for observation of faint nebulae and star clusters, particular...

Achromatic Refractor Optical Tube Assemblies. Vixen achromatic refractors allow sharp views of the Moon and planets. The easy-to-maintain refractor...

For both planetary and deep sky observing and photographic applications. Vixen's original Catadioptric design, consisting of two high reflectivity ...

Sky-Watcher 127mm/1500mm Skymax 127 Maksutov-Cassegrain OTA The Sky-Watcher 127/1500 Skymax 127 Maksutov-Cassegrain OTA is a compact and powerful ...

The BORG 90FL CR has exceptional optical resolution, accomplished by apochromat fluorite glass elements from Canon Optron, Inc. built in the optica...

PlaneWave CDK 14" Fused Silica The CDK (Corrected Dall-Kirkham) Optical Design is an innovative solution for unsurpassed astroimaging quality at an...

The Rowe-Ackermann Schmidt Astrograph (Celestron RASA 36), is a cost-effective optical system for space surveillance, Space Situational Awareness (...

Celestron C14-AF XLT Optical Tube Assembly 14" Schmidt-Cassegrain Optical Tube Assembly Aluminum Optical Tube Fastar Compatible Celestron's premiu...