Tak CN-212 is a two-way telescope. By exchanging the secondary mirror of a Cassegrain and the diagonal mirror of a Newtonian system, one can enjoy two types of telescope in one set. A Casssegrain has a long focal ratio and is a superb planetary and deep-sky scope. An f/3.9 Newtonian offers a wide field of view, and one can get both in the same telescope.
The exchange of the secondary mirrors is simple, Takahashi recognized the need for a precise optical system that could be swapped without disrupting optical alignment. There is a device that is able to restore the optical axis so perfectly that anyone can do the exchange quickly and easily.
Focal length 2630mm in Cassegrain mode & 820mm in Newtonian mode, Cassegrain secondary 68mm Newtonian secondary 72mm, Standard accessory: 7x50 6.3° illuminated finder
Tube length 855mm, weight 8.5kg