Calcium K (Ca-K) Telescopes and Filters are used to study the wavelength of 393.4nm. This emission line is one of 2 that are produced by Calcium just at the edge of the visible spectrum in a layer that is slightly lower and cooler than the layer viewed in Hydrogen-alpha. The emission line displays areas of Super Granulation Cells that are brightest and strongest in areas of high magnetic fields such as sunspot activity and active regions. Having the ability to study the Calcium K and the Hydrogen-alpha line provides important insights into the structure, strength, and depth of these active regions.

The Calcium K line is centered at 393.4nm. This wavelength is considered to be slightly outside the visible spectrum on the UV side. While most people can visually see the violet color of the wavelength, many cannot resolve the contrast due to yellowing of the cornea. People who have had cataract surgery are often able to see considerable detail. But, it is for these reasons that the Ca-K line is typically studied via the use of cameras which are able to provide stunning details.

60mm Calcium Solar-Telescope with
B600/C blocking filter and
2'' Crayford Focuser

Price $795.00 Art. No. LS60TCa-K/B600/C
( contact us directly or buy from dealer )

The LS60/Ca-K is a complete Solar Telescope for the Calcium-K line. The refractor based system has a precision aligned Ca-K optimized doublet achromat with a 60mm aperture. The focal length is 500mm providing a ~4.5mm image thru the B600 blocking filter. Fine focus adjustment is achieved with a Crayford focuser with 10:1 reduction.

Internal narrowband filters allow for a <2.4 Angstrom bandpass. Primarily an imaging system due to the difficulty of many to visually see everything that Ca-K has to offer. Lunt Solar will be introducing an imaging package for use with this system.

Delivered with order:
• optical tube with 2" Crayford Focuser and tube ring
• B600 blocking filter
• transport case

Pre-orders will be shipped in the order they are received.
Prices are subject to change without notice.

60mm Calcium Solar-Telescope with
B600/ft blocking filter and
2'' Feather Touch Focuser

Price $1,167.00 Art. No. LS60TCa-K/B600/FT
( contact us directly or buy from dealer )

The LS60/Ca-K is a complete Solar Telescope for the Calcium-K line. The refractor based system has a precision aligned Ca-K optimized doublet achromat with a 60mm aperture. The focal length is 500mm providing a ~4.5mm image thru the B600 blocking filter. Fine focus adjustment is achieved with a 2" Feather Touch Focuser with 1.5" travel and 10:1 reduction.

Internal narrowband filters allow for a <2.4 Angstrom bandpass. Primarily an imaging system due to the difficulty of many to visually see everything that Ca-K has to offer. Lunt Solar will be introducing an imaging package for use with this system.

Delivered with order:
• optical tube with 2" feather touch focuser with 1.5" travel, includes adapter
• tube ring
• B600 blocking filter
• transport case

Pre-orders will be shipped in the order they are received.
Prices are subject to change without notice.

60mm Calcium Solar-Telescope with
B1200/C blocking filter and
2'' Crayford Focuser

Price $1,045.00 Art. No. LS60TCa-K/B1200/C
( contact us directly or buy from dealer )

The LS60/Ca-K is a complete Solar Telescope for the Calcium-K line. The refractor based system has a precision aligned Ca-K optimized doublet achromat with a 60mm aperture. The focal length is 500mm providing a ~4.5mm image thru the B1200 blocking filter. Fine focus adjustment is achieved with a Crayford focuser with 10:1 reduction.

Internal narrowband filters allow for a <2.4 Angstrom bandpass. Primarily an imaging system due to the difficulty of many to visually see everything that Ca-K has to offer. Lunt Solar will be introducing an imaging package for use with this system.

Delivered with order:
• optical tube with 2" Crayford Focuser and tube ring
• B1200 blocking filter
• transport case

Pre-orders will be shipped in the order they are received.
Prices are subject to change without notice.

60mm Calcium Solar-Telescope with
B1200/ft blocking filter and
2'' Feather Touch Focuser

Price $1,417.00 Art. No. LS60TCa-K/B1200/FT
( contact us directly or buy from dealer )

The LS60/Ca-K is a complete Solar Telescope for the Calcium-K line. The refractor based system has a precision aligned Ca-K optimized doublet achromat with a 60mm aperture. The focal length is 500mm providing a ~4.5mm image thru the B1200 blocking filter. Fine focus adjustment is achieved with a 2" Feather Touch Focuser with 1.5" travel and 10:1 reduction.

Internal narrowband filters allow for a <2.4 Angstrom bandpass. Primarily an imaging system due to the difficulty of many to visually see everything that Ca-K has to offer. Lunt Solar will be introducing an imaging package for use with this system.

Delivered with order:
• optical tube with 2" feather touch focuser with 1.5" travel, includes adapter
• tube ring
• B1200 blocking filter
• transport case

Pre-orders will be shipped in the order they are received.
Prices are subject to change without notice.