OTA · 1994–
Takahashi CN-212

Key specifications
| Aperture | 212 mm |
|---|---|
| Focal length | 2650 mm |
| Focal ratio | f/12.4 |
| Optical design | Other |
About
212 mm convertible reflector: an f/12.4 Cassegrain (2650 mm, hyperbolic secondary) for high-resolution work, or — by swapping the secondary and adding a low-profile adapter and corrector — an f/3.9 wide-field Newtonian (820 mm). A pierced parabolic primary feeds both modes.
Where to buy
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