Lunt LS130TCaKMD Ca-K Filter Module for LS130MT

A different wavelength, a different sun

H-alpha and Calcium-K lines different layers from the sun's atmosphere. Whereas the red H-alpha line shows the higher chromosphere with its prominences and filaments, in the blue you look Calcium-K light (393.4 nm) deeper down. Supergranulation dominates there: a network of cells across the entire surface, with bright plage areas around active regions.

Especially for photography

Calcium-K is located at the edge of what the human eye can see. Many observers see a faint blue-violet image with little detail; older people generally see less than younger people. A camera doesn't have that problem. Lunt therefore optimizes the Ca-K modules primarily for photography: do not expect an H-alpha-like experience visually.

Assembly

Remove the H-alpha etalon unit from the LS130MT and slide the Ca-K module into place of the blocking filter in the focuser. At the Does the LS130MT/B1200 and B1800 work directly?. The LS130MT/B3400 has the block filter fixed in the focuser, and you also need the conversion kit (item 0551696).

Specifications

• Wavelength: Calcium-K (393.4 nm)
• Suitable for: Lunt LS130MT
• On B3400 execution: Conversion kit 0551696 required
• Primarily intended for: photography
• Bresser Article Number: 0551697

What you receive

• LS130TCaKMD Ca-K filter module
• Manual

Safety

Never look at the sun without the H-alpha etalon and blocking filter correctly installed. Use the instrument only as intended by Lunt and never disassemble it. Never leave a telescope pointed at the sun unattended.

You can find more solar instruments and modules from this merk on the Lunt Solar Systems merk Page.