Calcium blocking filter

Calcium-Blocking-Filters

Like the H-alpha block filters, the calcium modules are also a combination of energy block filters and interference filters. Here tuned to the Wavelangth of 393nm.

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Transforms normal refractor telescopes up to 3060mm focal length into Ca-K solar telescopes. No further accessories required.
2099.16 €
Delivery date : 3-4 days
Transforms normal refractor telescopes up to 1620mm focal length into Ca-K solar telescopes. No further accessories required.
1743.70 €
Delivery date : Will be ordered for you