Lunt LS6CaKMDs2 Ca-K Extension Tube

Lunt LS6CaKMDs2 Ca-K Extension Tube

Description
The Lunt LS6CaKMDs2 is a compact solar filter module using the Calcium-K wavelength, built into a straight 2-inch extension tube. It allows a conventional refractor to become a solar telescope without any additional accessories.

Thanks to a narrow <2.4 Å bandwidth, it reveals chromospheric features like supergranulation and faculae. While Ca-K is difficult to observe visually, this filter is ideal for solar photography with UV-sensitive cameras.

Designed for refractors up to 100 mm aperture and 540 mm focal length, the module includes a 1.25" eyepiece holder and a T2 thread for cameras.

Technical specifications
• Product reference: 0553502
• EAN: 4007922035215
• Filter type: Calcium-K
• Bandwidth: <2.4 Ångströms
• Format: 2" straight extension tube
• Telescope connection: 2"
• Eyepiece holder: 1.25"
• Camera thread: T2
• Compatibility: Refractors up to 100 mm and 540 mm focal length
• Integrated blocking filter: B600
• No external filters needed

User benefits
• Fully integrated Ca-K filter system
• Ready for safe solar observation or imaging
• Compact straight tube design
• Easy to install on standard focusers
• Ideal for astrophotographers

Additional information
• Ca-K light not easily perceived visually
• Designed primarily for imaging
• Filter housing includes all optical components