The Takahashi Reducer-CR is a 0.73x focal reducer for the FSQ-106EDX4, Mewlon 250CRS, Mewlon 300CRS and CCA-250 telescopes. The Reducer-CR has an image circle of 35mm, making it suitable for use with APS-C sized sensors and smaller.
The 0.73x reduction factor transforms the FSQ-106EDX4 into a wide 387mm f/3.6 astrograph. When used with the Mewlon 250CRS, 300CRS and CAA-250, imaging time is reduced significantly.
Spot diagram of Takahashi CCA-250 with RD-CR 0.73x focal reducer.
Spot diagram of Takahashi Mewlon 250CRS with RD CR 0.73x focal reducer.
Spot diagram of Takahashi Mewlon 300CRS with RD CR 0.73x focal reducer.