Optical Tube Assemblies
Optical tube assemblies, commonly abbreviated by astronomers as OTAs are simply the tube of the telescope where the optics are internally located. OTAs can be helpful in a situation in which an observer has a compatible mount and doesn't want to buy a whole new telescope with a mount included. Optical Tube Assemblies can come in the form of Maksutov-Cassegrain, Astrographs, Reflectors, Refractors, Schmidt-Cassegrains and many others! With the right mounting connections and range of mount and tripod payload, OTAs are a great choice for changing optical type without changing the mount.
The VIXEN VMC330L telescope is a unique catadioptric telescope. With two mirrors and two high-precision corrector lenses, one of which is a meniscus, the VMC330L produces sharp images with no hint of false color... Learn MoreFREE SHIPPINGModel#: 5832(48 States)
The Vixen VMC95L, is a 95 mm (3.7 inch) aperture modified Cassegrain f/11 optical tube assembly.The VMC95L is intriguing in its own right with interesting features including a curved vane Secondary Mirror Spider to reduce diffraction effects... Learn MoreFREE SHIPPINGModel#: 2614(48 States)
One of the best multi purpose Grab and Go Reflector Telescopes. This is a compact optical tube, with features found on our higher end telescopes.... Learn MoreFREE SHIPPINGModel#: 26052(48 States)
The VMC200L is a unique catadioptric optical system. It incorporates a primary mirror and a meniscus corrector just before a secondary mirror. By doing so, light is corrected twice on the optical path.... Learn MoreFREE SHIPPINGModel#: 5829(48 States)