Lunt 100mm Solar Telescope with B1800 Blocking Filter
The Lunt LS100THa solar telescope is a complete solar telescope. This refractor-based system has a precision-aligned doublet ED lens with a 102 mm aperture. Furthermore, the focal length is 714 mm, for an f/ratio of 7. Additionally, the course focus adjustment is made via a slide tube. While focusing is achieved with a high precision 2″ Starlight Feather Touch focuser with 10:1 reduction as standard equipment. Most importantly, an internal etalon with tune adjustment allows for a <0.7 Angstrom bandpass.
True Doppler Tuning:
Importantly, True Doppler Tuning allows for a shift into and away from the user, adding a 3-D like component to the viewing experience. To be sure, it has minimal effect on proms due to their location at the edge of the disk, but it does have an effect on filaments and likewise the active regions on the surface. Also while looking at a filament at the center of the Sun, the user has the ability to Doppler shift from the base of the filament to the tip. In this way following the filament through it’s structure toward you and away from you. Amazingly, this allowing for enhanced visual and imaging capability for the observer as well as a research tool for the avid hobbyist. In addition the pressure tuning system provides an order of magnitude more precision to the tuning of the desired features.
Choice of filter:
B1200 – for visual use
B1800 – for larger field of view and imaging applications
B3400 – for larger field of view and imaging applications with larger sensors
No Blocking Filter – only choose this package if you already have a Lunt Solar Systems blocking filter at your disposal. All Lunt Solar Systems h-alpha telescopes require a Lunt Blocking Filter!
Optical tube with 2″ Feather Touch focuser with 1.5″ travel
B1200, B1800 or B3400 Blocking Filter
Sun Finder: Televue Sol Searcher
Mounting: Lunt 12″ Dovetail
Case: Aluminum Finished Hard Case with Custom Foam
Optical Aperture: 102 mm
Etalon: Internal <0.7 Angstrom
Tuning: Internal Pressure Tune (Doppler True Tuning)
Focal Length: 714 mm
F Ratio: F/7
Focuser: 2″ Feather-Touch focuser with 10:1 reduction
Tube diameter: 121 mm
Tube length with blocking filter: 634 mm
Storage: Aluminum finished hard case with fitted foam
Weight: 12.2 lb
Free Shipping Everyday to Canada!
(Except to Yukon, Northwest Territories, Nunavut, and other areas deemed as "remote" by Canada Post or Purolator)
On orders above $100
Orders are processed: Monday – Friday from 8am – 3:30pm MT
(Public Holidays Excluded)
Order Confirmation: After placing an order, you will receive an order confirmation by e-mail. This means we’ve received your order in our system and have pre-authorized your credit card for the purchase. If your item is back-ordered or otherwise unavailable, we will void the pre-authorization charge and contact you to inform you by e-mail. If your item(s) are available for immediate shipment (within 7 business days unless noted longer on the product page), we will process the charges and submit the order for shipment.
Tracking Numbers will be sent to your email once your order has shipped.
In some cases, we may need to contact you before your order can be shipped. To ensure there is no delay, please respond to any email/phone call from our Customer Service team.
We proudly use the following Shipping Methods and will choose the best available in terms of price and delivery times at the time of shipment.
Price Guarantee Policy:
We want to ensure our customers get the products they need at the best possible price. If you find another online store that offers a lower price than us within one month of your purchase date, please let us know and we will refund your original payment for the difference.
To request your partial refund simply e-mail us a link to the same product on our competitors website within one month from the date of your order and we will process the credit accordingly.
Our 100% Price Guarantee has some limitations:
- You must purchase the item from our website before requesting your Price Match Guarantee
- Promotions such as rebates and buy one, get one free offers are not eligible
- The item must be in stock on the competitors website
- The competitor must be an online store, they may not have a retail location
- The website can not be a discounter or auction website (ie; eBay, overstock, etc..)
- The competitor must be an Authorized Retailer for the product in question
- The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax