Optical Tube Assemblies(OTA's)

Celestron 36cm Rowe-Ackermann Schmidt Astrograph OTA A 36cm aperture, f/2.2 optical system designed for professional applications that require both a wide field of view and resolution, such as space surveillance and other scientific applications...

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...

Sky-Watcher Skymax 127 Maksutov-Cassegrain optical design Primary and secondary mirrors feature proprietary Radiant™ Aluminum Quartz™ (RAQ™) coatings Corrector plate featuring Metallic High-Transmission Coatings™ (MHTC™)...