Takahashi 645 REDUCER-CA (.72X) (CCA-250) Reduces the effective focal length of the CCA-250 telescope by 0.72X, increasing the speed of the optical system for astrophotography. Produces a 60...
Takahashi REDUCER-CR 0.73X (CCA-250/M-CR/CRS) Compatible with the Mewlon 250 CRS and FSQ-106EDX4 telescopes, providing a focal length reduction of 0.73X. Produces a 44 mm diameter image circule...