SKU: 20577750138

Lunt Calcium K Module

Sale price$402.75 Regular price$447.50
Save 10%

Pay in installments of $111.88 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Lunt Calcium K ModuleCalcium K Module Calcium K (Ca K) telescopes and filters are used to study the wavelength of 393. 4 nm. This emission line is one of two that are produced by Calcium just at the edge of the visible spectrum. Comparatively, this is 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

Calcium K Module

Calcium K (Ca-K) telescopes and filters are used to study the wavelength of 393.4 nm. This emission line is one of two that are produced by Calcium just at the edge of the visible spectrum. Comparatively, this is 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. Lunt Solar Systems Calcium K modules can be used with most standard night time refractors, or with Lunt's new Modular Telescopes in their night time configuration!

The Calcium K modules line is centered at 393.4 nm. 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.

Internal narrowband filters allow for a <2.4 Angstrom bandpass. This is primarily an imaging system due to the difficulty of many to visually see everything that CaK has to offer.

Choose the best Calcium K Module for your Telescope Size and Focal Length:

B600: For telescopes up to 100 mm aperture and 600 mm focal length

B1200: For telescopes up to 100 mm aperture and 1200 mm focal length

B1800: For telescopes up to 100 mm aperture and 1800 mm focal length

Read the latest news about the Sun from NASA.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20577750138

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 19 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Christopher Atchison
Dallas, US
★★★★★ 4
Good
Color: Grey
Works as it should, but one of the brackets on the leg broke while setting up. Super glue is holding it in just fine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 5, 2026
K
Verified Purchase
Kati M
Bozeman, US
★★★★★ 1
Not good for putting away daily
Color: Grey
This product may work of you are doing a full install, but is terrible for putting up and taking down daily. I have only had it 2 months and it is falling apart and will not stand straight.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
B
Verified Purchase
Bethany Lindsay
Port Orchard, US
★★★★★ 5
Privacy at ease!
Color: Black, Color: Black
This is exactly what we needed for our large house and bedroom sharing with the kids. People need privacy and this can be tucked away when it isn't being used. Perfect!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
J
Verified Purchase
J.G.
Phoenix, US
★★★★★ 5
Easy to put together
Color: Black, Color: Black
I was pleasantly surprised by how well this room divider is designed. The engineering behind it is actually pretty thoughtful. All the pieces line up exactly where you expect them to, and the connectors make assembly almost foolproof. I had it put together in just a few minutes without any frustration or extra tools. The fabric panels look clean and modern, and the whole unit is surprisingly lightweight. That makes it easy to move around if you want to reconfigure a room or create a quick private space. Even though it’s light, it still feels stable once it’s assembled. Overall it’s a simple product done right: easy to assemble, easy to move, and it does exactly what it’s supposed to do. I’d definitely buy it again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026
T
Verified Purchase
Tabitha Bouwie
Charlottesville, US
★★★★★ 5
This is a Must have!
Color: Black
Yesss this here was A LIFE SAVER for my Nail business.. thanks so sturdy and worth every bit of the price! I love it so much it kept everything meaning people from looking in being nosy on the other side of my garage family room. And not to mention it’s able to go wherever you go!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026

recommand products