Product Highlights
The Takahashi CCA-250 Tri-Focal Astrograph functions at f/5, f/8,
and f/3.9 (with 6345 Flattener) and has an aperture of 250 mm (9.84") The CCA-250 Tri-Focal Astrograph was produced by Takahashi to replace the Baker Ritchey Chretien BRC-250 The CCA-250 rear assembly includes a large camera rotator and can operate an electric rotator for remote operation The
CCA-250 Tri-Focal Astrograph Modified Cassegrain design includes a
carbon fiber tube allowing for light weight and stable focus The CCA-250 by Takahashi has a D-series (Losmandy) -compatible dovetail for easy mounting Designed to replace the Takahashi Baker-Ritchey Chretien BRC-250, the
Takahashi CCA-250 Corrected Cassegrain Astrograph takes its place among
the stars as the latest visual and astrophotogic instrument.
Optical performance: 2 microns RMS-spot radius on axis Image circle: 88mm diameter (60% illuminated) Image angular: 4 degrees diameter Back focus/metal back: 155.4mm -193.9mm with CAA removed Electric focus secondary computer controlled
Specifications
SKU TK-CCA250P
Telescope Series Takahashi BRC/ FRC
Optical Design Modified Cassegrain
Mount Type None - Optical Tube Only
Warranty 5 Year Warranty
Telescope Aperture 9.8"
Secondary Aperture 125mm
Telescope Focal Length 1250mm
Telescope Focal Ratio f/5
Back Distance 193.5mm
Image Circle 88mm
Image Across Field 2 microns RMS-spot radius on axis : 3 microns RMS-spot
Optical Coatings Aluminum
Limiting Stellar Magnitude 14.5
Highest Useful Magnification Not supplied by manufacturer
Optical Tube Outer Diameter 306mm
Length of Optical Tube 34.25"
Optical Tube Weight 50.16 lbs.
Tube Color or Finish Gloss Black
Finder Included None
Eyepiece(s) Included None
Diagonal Included? No - Sold Separately
Dew Shield Included? No, Sold Separately
Dew Shield Outside Diameter Not supplied by manufacturer
OTA Mount Type N/A
Power Adapter Included DC Cable with Alligator Clips
Objects in Database N/A
Hand Controller Included? Yes
Alignment Procedure N/A
Counterweights Included N/A
Mount Weight N/A
Total Telescope Weight 50.16 lbs.
Tripod Type Included None, Sold Separately
CCA Photo Visual System Chart
CCA 645 Reducer-CA System Chart
CCA Reducer-CR System Chart
CCA Extender System Chart
In the Box Takahashi CCA 250 mm Carbon Fiber Tri-Focal Astrograph Telescope OTA Large Camera Rotator Assembly CCA TKP86200 Coupling (TW) TKP86003
Coupling (S) TKP00103 Aux. Ring TKP86002 Ocular adapter (31.7) TKP00101 Visual adapter TKP86005 Integrated Losmandy-Style Dovetail VIDEO VIDEO 
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