Transforms normal refractor telescopes up to 1620mm focal length into Ca-K solar telescopes. No further accessories required.
- Solar observation in Ca-K wavelength
- For refractors up to 100mm aperture & up to 1620mm focal length
- Bandwidth <2.4 Angstrom
- Shows super granulation, flares & much more
- Calcium-K filter module in 90° zenith-mirror
- For use at 2 inch focusers
- No additional accessories required
- Absolutely safe, no danger to the eyes