645-CA 0.72X Reducer for CCA-250 Telescopes (TKA86580L)
Category: Astrophotography Accessories
Description
The Takahashi 645 Reducer-CA 0.72X reduces the focal length of the CCA-250 telescope by 0.72X, increasing the speed of the optical system for astrophotography. The reducer produces a 60 mm diameter image circle that is ideal for larger imaging chips.
Specifications
|
Telescope with Adapter |
CCA-250 with 645-CA 0.72X RD |
|
Adapter Part Number |
TKA86580L |
|
Aperture |
250mm |
|
Resolution |
0.46" |
|
Limiting Magnitude |
13.8 |
|
Light Gathering Power |
1276x |
|
Focal Length |
890mm |
|
Focal Ratio |
f/3.6 |
|
Image Circle Diameter |
60mm |
|
Optical Type |
Modified Cassegrain |
|
Tube Diameter |
306mm |
|
Tube Length (With Lens hood retracted) |
870mm |
|
Tube Weight |
22.8kg |
|
Recommended Finder |
7x50 |
|
Metal Back Distance |
56.2mm |
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Express Shipping · United States: $3.99
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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.
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