Takahashi 645 Reducer and Camera Angle Adjuster for CCA-250 Astrograph
The design of this unit was a reaction to the use of CCD cameras with larger chips. A 60% illuminated 60mm image circle is created by this reducer. It consists of four elements in four groups and boosts light intensity by 50% more than the current reducer. Loss of light is lowered even more by a new flat multi-coating.
This Takahashi 645 will allow the CCA-250 Astrograph to be reduced to an 890mm f/3.6 device. Instantly connects to the back end of the optical tube, further upgrading the scope's functionality.
CCA 250 Astrographs using large format CCD Cameras and full frame digital SLR's will generate flat, wide field images with sharp contrast when paired with the Takahashi 645 reducer.
Takahashi Product Number: CCA250-645