Filters and telescopes for solar observation

in white light, calcium-K and H-alpha

These Calcium Ca-K filter modules are designed to upgrade your astronomical telescope for solar observing in the Ca-K wavelength during the day. The filter modules are alternatively installed in star-diagonals or straight extension tubes for 50.8 mm (2") focusers. Just place the filter module in the focuser of your telescope - that's all. Observing the sun in Ca-K light can't be easier!

Transforms normal refractor telescopes up to 1620mm focal length into Ca-K solar telescopes. No further accessories required.
2.799,00 € * Shipping Weight 0.54 kg
Transforms normal refractor telescopes up to 540mm focal length into Ca-K solar telescopes. No further accessories required.
1.899,00 € * Shipping Weight 0.63 kg More information
Transforms normal refractor telescopes up to 540mm focal length into Ca-K solar telescopes. No further accessories required.
1.899,00 € * Shipping Weight 0.54 kg
Transforms normal refractor telescopes up to 1080mm focal length into Ca-K solar telescopes. No further accessories required.
2.399,00 € * Shipping Weight 0.63 kg
Transforms normal refractor telescopes up to 1080mm focal length into Ca-K solar telescopes. No further accessories required.
2.399,00 € * Shipping Weight 0.54 kg
Transforms normal refractor telescopes up to 1620mm focal length into Ca-K solar telescopes. No further accessories required.
2.799,00 € * Shipping Weight 0.63 kg
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