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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.

Antlia Solar Discover CaK and H-alpha Filters

Antlia Solar Discover is a system of filter assemblies for imaging the Sun in calcium and hydrogen light. It includes 5Å and 3nm CaK assemblies centered on the 393.3nm calcium K line, dualband Ha, CaK and CaH assemblies in Standard and Mini sizes, and the Dualband ERF energy rejection filter.

Accessories adapt the system to your telescope: 2x, 3x and 5x Barlow lenses for the 5Å CaK filter, 50mm and 70mm extension tubes and an adjustable aperture diaphragm. Always assemble it as Antlia specifies for safe solar use.

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