Ca-K Modules

See the Sun like never before with Lunt Calcium K (Ca-K) telescopes and filters. Tuned to the 393.4 nm wavelength, these systems reveal a cooler, deeper layer of the Sun than Hydrogen-alpha. Where magnetic activity, sunspots, and bright active regions come to life in stunning violet detail.

Studying both Calcium K and Hydrogen-alpha provides a richer understanding of the Sun’s structure and energy.

Lunt’s Calcium K modules are compatible with most standard refractors and easily integrate with Lunt Modular Telescopes in their nighttime configuration giving you the flexibility to explore the Sun in extraordinary ways.