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Lunt 40mm Dedicated Hydrogen-Alpha Solar Telescope

SKU LS40THa/B500
Special Order
Original price $749.00 - Original price $1,426.00
Original price
$749.00 - $1,426.00
Current price $749.00

Lead-time: 6-8 weeks

To order this product at $0 up-front and secure your place in the queue, please email us at, or give us a call during our posted business hours at 1-800-860-3429!

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Lunt 40mm Dedicated H-Alpha Solar Telescope - with Choice of Filter & Focuser

Presenting the latest Lunt 40mm Dedicated Hydrogen-Alpha Solar Telescope – an optimal entry point for those embarking into the world of solar viewing for the first time. 

The Lunt 40mm Hydrogen Alpha Telescope includes a TeleVue Sol Searcher, 4" Vixen Style Dovetail, and your choice of Focuser/Blocking Filter Combination. This package is tailored for both visual observation and photography.

Crafted for effortless portability and use, the Lunt 40mm stands as the smallest aperture in the Lunt Telescope lineup. Despite its compact size, it delivers the power, remarkable detail, and quality expected with Lunt Telescopes, all while delivering a remarkable ~4.0mm Solar Image Size!

This true grab-and-go telescope, with its 40mm aperture and F/10 system, promises to leave both novice's and seasoned professionals in amazement as they witness the entrancing phenomena of our nearest Star, the Sun!

Please note: The Lunt 40mm H-Alpha Solar Telescope System requires the use of a Lunt Blocking Filter.

As the Sun's activity escalates, so too will your affection for your instrument!

Image #2 Captured Using Lunt 40mm Dedicated Hydrogen-Alpha Solar Telescope

The experience of observing our Sun through a specialized solar telescope promises countless hours of visual appeal and educational revelations.



  • Telescope Type: Dedicated H-alpha

  • Universal Capabilities: H-alpha

  • Aperture: 40 mm

  • Objective Type: Custom Doublet Optimized at 656 nm

  • Objective Coating: Ion Assist Ultra-Narrowband AR (656 nm)

  • Focal Ratio: F/10

  • Focal Length: 400 mm

  • Focuser Options: Helical or Feather Touch

  • Mounting: Mounting Foot

  • Storage: Box with Fitted Foam, Hard Case Optional

  • H-alpha Etalon Type: Internal Dedicated

  • Etalon Wavelength: 656.28 nm

  • Etalon Bandpass: <0.7 Å Single Stack, <0.5 Å Double Stack

  • Etalon Material: UV Grade Fused Silica

  • Etalon Tuning: Tilt

  • Doppler Shifting: Instant

  • Blocking Filter Size: 5 mm, 6 mm, 12 mm, Diagonal

  • Blocking Filter Bandpass: 6 Å

  • Sun Finder: TeleVue Sol Searcher built in

Customer Reviews

Based on 4 reviews
Best entry level halpha scope

First of all red carpet provided great service from the start. We had a little back&forth with lunt to confirm I knew what I was getting with my unusual choice of options.
The lunt40 is currently the best entry level halpha telescope. Compared to the PST it offers a better finder, upgradeable focuser, and lunt's etalons are generally better.
In my particular sample the views are good and just what you would expect from 40mm. The helical focuser is, umm, usable. Definitely consider an upgrade at some point. The included dovetail is a tad too short to balance properly. You can use that as an excuse the get the double stack module.
Overall good optics, so so mechanics. The shortcomings can be solved and even stock it's better than the competition.

Cristian L.I.
A nice experience

Hello! I had a nice experience buying from you a Lunt 40 mm solar telescope. I am eager to use its etalon for double stacking a Lunt 40mm BF500 that I already have. Best regards.

Eric B.
Great solar scope

An amazing scope. The filter is top notch and the clarity of the optics are fantastic.

Let the solar begin.

First off I want to state customer service (Matt) has excelled throughout this whole process. Constantly giving fast replies to question and updating me. Shipping was fast, packing was superb. I woul give 10****** if I could. Now to get it mounted go thru learning mode. Again thank Matt