Takahashi CCA-250 Modified Cassegrain OTA
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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.
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|Aperture||250 mm (9.75″)|
|Camera/Eyepiece Connection||1.25″ Nosepiece|
|Corrected Image Circle||88mm|
|Dawes Limit||0.46 arcseconds|
|Focal Length||1250 mm|
|Light Gathering Power||1276x|
|Optical Design||Modified Cassegrain|
|Tube Weight||50.3 lbs|
|Warranty||5 Year Warranty|