Starting Price: $15,000.00
Price as Configured: $15,000.00
Brand: Takahashi / SKU: TA-TCK25010
Special Order Item. Please contact us for availability and delivery times.
Price as Configured: $15,000.00
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The CCA-250 is Takahashi’s modified Ritchey–Chrétien (or Corrected Cassegrain Astrograph), 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.

The CCA-250 offers 3 different focal lengths through the addition of optional reducers and extenders.  From the f/5 standard focal ratio at primary focus, it is possible to go to f/3.6 by using one of the two available reducers or to go to f/7.5 by using one of the two available extenders. The choice of the model of reducer or extender depends on the image circle needed and the size of the sensor of the camera to be used.