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.
Dall-Kirkham Telescope combines refractor-like performance in a larger folded optic reflector design. The Takahashi Mewlon 210 at prime focus provides a focal length of 2415mm, focal ratio of f/11.5 and image circle of 18mm... Learn MoreFREE SHIPPINGModel#: TLK2101(48 States)
The Takahashi Sky 90 is a refractor telescope that executes optical excellence.... Learn MoreFREE SHIPPINGModel#: TSK9001(48 States)
The TSA-10S2 is the first in the new TSA line of Takahashi triplet apochromats. The color free images produced will delight the lunar, planetary and deep sky observer with very high contract images with pin point stars.... Learn MoreFREE SHIPPINGModel#: TSA0102(48 States)