These CaK OTA’s are no longer available. Lunt are now offering 3 ED options that can be used for CaK, White Light, and Night Use.. Please contact Sales at Lunt Solar for more information..

Descriptions and pictures of the New products will be psoted soon…

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.

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

Customer Solar Images:

• Savio Fong
• Jean-Christophe Dalouzy
• Your Image Gallery here?

LS60TCaK Specifications: (single stacked)

Obsolete

• Optical Aperture: 60mm
• Etalon: Internal <2.4 Angstrom
• Tuning: Tilt
• Image Scale:
• Focal Length: 500mm
• F Ratio:
• Focuser: Crayford with 10:1 fine adjustment
• Mounting: Integrated clamshell style with 1/4-20 tapped base
• Storage: Aluminum finished hard case with fitted foam
• Weight: 5 lbs
• Starting at: N/A (B600)

Required Blocking Filter: (see “blocking filters”)

• B600 for standard visual/imaging use (included)
• B1200 for larger field of view and imaging applications (upgrade)

Optional Accessories: (see “accessories”)

• Sun Finder: Televue Sol Searcher
• Mounting: Lunt 6″ Dovetail
• Eyepiece: Lunt Zoom Eyepiece
• Focuser: Startlight Feathertouch

You may also be interested in: (see “merchandise“)

• Lunt Solar Hat
• Lunt Solar Polo or Tank Top Shirt

But there’s more……

The LS60TCaK is available in many optional variations, here are a few examples to aid in description and part numbers for pricing.

LS60TCaK/B600/C
* Standard system with B600 visual/imaging use blocking filter and standard Crayford Focuser
Retail Price: US$N/A

LS60TCaK/B600/FT
* Standard system with B600 visual/imaging blocking filter and Upgraded Feathertouch Focuser
Retail Price: US$N/A

LS60TCaK/B1200/C
* Standard system with B1200 imaging upgraded blocking filter and standard Crayford Focuser
Retail Price: US$N/A

LS60TCaK/B1200/FT
* Standard system with B1200 imaging upgraded blocking filter and upgraded Feathertouch Focuser
Retail Price: US$N/A

These part numbers can be looked up in the Price List or call for more information.

You may also be interested in:

LS60T Basic Package (see “LS60T“)

LS60T/PT Visual Package (see “visual package“)

LS60TDS50/PT Imaging Package (see “imaging package“)

LS80T/PT (see “New LS80T/PT“)

LS100THa (see “LS100T“)

LS152THa (see “LS152T“)

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

No-one brings you closer to our nearest Star than Lunt Solar Systems… the next generation of Solar Instrumentation.

About Lunt Solar Systems LLC…

Lunt Solar Systems is a manufacturing and sales facility located in Tucson, Arizona. Lunt Solar design, fabricate, assemble, and test solar telescopes and solar filters. Whether you are looking for a dedicated solar telescope or a solar filter for attachment to you own astronomy telescope, we can help. Solar telescopes models start at $499 for an LS35T (telescope) or the only slightly more expensive LS50F (filter), all the way thru the 152T and the 160F. Solar observing is both fun and educational. Don’t miss out on Solar Maximum.