Binoculars And Telescopes By A ALSTAR
Alstar f/6.3 Reducer Corrector for C Series Telescopes - Product Features
- Converts f/10 optical system to faster f/6.3 for a significantly wider field of view
- Reducer shortens the effective focal length of Schmidt Cassegrain telescope optical system by 37 percent
- This combination focal reducer and field corrector lens accessory works with all Celestron 5 inch; 6 inch; 8 inch; 9 1/4 inch; 11 inch and 14 inch Schmidt Cassegrain telescopes
- Four element; fully multi coated optical design with 41 mm clear aperture
- This clever accessory makes it possible to have a dual focal ratio instrument; without sacrificing image quality
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