Optical Tube Assemblies(OTA's)

Sky-Watcher Esprit 80 ED APO refractor   Included: Helinear Track focusing system with zero image shift. 8 x 50 right angle finderscope 2-inch Star diagonal 2-element field flattener Camera adapter D-style dovetail Padded case Specs SKU:...

Celestron 8in Rowe-Ackermann Schmidt Astrograph OTA 8in Rowe-Ackermann Schmidt Astrograph (RASA 8) Flat field free of optical aberrations like field curvature, coma, astigmatism and chromatic aberration across an entire APS-C sensor. Unlike the larger...

Celestron C11 SCT OTA - CG5 The Schmidt Cassegrain Telescope(SCT) is a hybrid optical design termed catadioptric. The modern SCT is a popular telescope design due to it's compact size vs aperture. StarBright XLT coated optics housed in a lightweight...

Celestron C11 SCT OTA - CGE The Schmidt Cassegrain Telescope(SCT) is a hybrid optical design termed catadioptric. The modern SCT is a popular telescope design due to it's compact size vs aperture. StarBright XLT coated optics housed in a lightweight...

Celestron C6 SCT OTA - CG5 The Schmidt Cassegrain Telescope(SCT) is a hybrid optical design termed catadioptric. The modern SCT is a popular telescope design due to it's compact size vs aperture. StarBright XLT coated optics housed in a lightweight...

Celestron C8 SCT OTA - CG5 The Schmidt Cassegrain Telescope(SCT) is a hybrid optical design termed catadioptric. The modern SCT is a popular telescope design due to it's compact size vs aperture. StarBright XLT coated optics housed in a lightweight...

Celestron C8 SCT OTA - CGE The Schmidt Cassegrain Telescope(SCT) is a hybrid optical design termed catadioptric. The modern SCT is a popular telescope design due to it's compact size vs aperture. StarBright XLT coated optics housed in a lightweight...

Celestron C925 SCT OTA - CG5 The Schmidt Cassegrain Telescope(SCT) is a hybrid optical design termed catadioptric. The modern SCT is a popular telescope design due to it's compact size vs aperture. StarBright XLT coated optics housed in a lightweight...

Celestron C925 SCT OTA - CGE The Schmidt Cassegrain Telescope(SCT) is a hybrid optical design termed catadioptric. The modern SCT is a popular telescope design due to it's compact size vs aperture. StarBright XLT coated optics housed in a lightweight...

Celestron EdgeHD 800 OTA - CG5

Celestron EdgeHD 800 OTA - CGE

Celestron EdgeHD 925 OTA - CGE

Lunt Solar Systems 102mm ED Doublet

Lunt Solar Systems 80mm ED Doublet

Meade 10in f/10 ACF OTA w/UHTC

Meade 10in f/8 ACF OTA w/UHTC