The CCA-250 is Takahashi’s modified Ritchey–Chrétien, developed as a replacement to the BRC-250 and is designed with imaging in mind. The CCA-250 produces a flat field across an 88 mm image circle. At prime focus, it is a 250-mm aperture, f/5.0 astrograph. Coupled with a reducer, it becomes a fast f/3.6 telescope. The CCA-250 has a carbon fiber tube and a temperature compensated lens cell to maintain focus during long exposures. The CCA-250 also has an ASCOM compliant active focus system that enables computer control of the focusing system.
Please note: mount, tripod, and finder sold separately.
Included in the box:
Optical Tube Assembly
CCA TKP86200
Coupling (TW) TKP86003
Visual adapter TKP86005
Coupling (S) TKP00103
Aux. Ring TKP86002
Ocular adapter (31.7) TKP00101
CCA 645 Reducer-CA System Chart