LS50THa Hydrogen-Alpha Telescope

All sales of solar gear are final.

Because of the long lead time for FeatherTouch focusers, all Lunt LS50THa telescopes are delivered with a Lunt helical focuser. If you select the FeatherTouch option, the FT focuser will be delivered when it becomes available and can be easily and safely installed by the user.

Our Take

This is a fantastic Hydrogen Alpha (Ha) telescope. The filters built into the body allow only a very narrow band-pass of the light the sun gives off through to your eye. The particular light that this lets through allows views of sunspots just like white light filters, but Ha also lets you see surface granularity, filaments, and any flares or prominences. Ha views are truly in a class of their own and are a great way to follow any and all solar activity.

What really makes this scope stand out among others from Lunt is its compact size and comparatively light weight. This would feel secure on a tripod or the Star Adventurer tracker and is very easily transportable. Just like other Lunt Ha telescopes this has a pressure tuner in addition to the focuser so you can make particular details pop even more, and can be modified later with different blocking filters or made into a double stack allowing you to grow into the telescope over time. 

Description

The LS50THa from Lunt Solar Systems is a 50mm, unobstructed, pressure-tuned, dedicated Hydrogen-alpha telescope with a bandpass of <0.75 A.

The excitement of viewing our Star through a dedicated solar telescope is sure to provide many many hours of visual enjoyment and educational insights. This package is fully upgradeable at any time without ever having to go back to the factory. As the Sun becomes increasingly more active, you will appreciate that the instrument can grow right along with it.

The Lunt LS50THa Solar Telescope, complete with a Pressure Tuner,  provides the basic essentials perfect for a first time introduction to solar observing, while also including the newest technology for fine tuning, allowing basic research of the Sun’s disk and some surface details.

True Doppler Tuning (Pressure Tuning) allows for a shift into and away from the user, adding a 3D-like component to the viewing experience. While it has minimal effect on prominences due to their being at the edge of the disk, it does have an effect on filaments and active regions on the surface. 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, following the filament through it’s structure toward you and away from you, allowing for enhanced visual and imaging capability for the observer as well as a research tool for the avid hobbyist. The pressure tuning system provides an order of magnitude more precision to the tuning of the desired features.

LS50THa Package Features:

• A Narrow Band Hydrogen-alpha Dedicated System.
• A refractor-based system with a 50 mm front objective.
• An internal Etalon with a pressure tuner allows for <0.75 Angstrom bandpass.
• The system includes the clamshell with threaded holes for mounting and dust caps.

Specifications: (single stacked)

• Type: Single Interference Etalon
• Tuning: Internal Pressure Tune (Doppler True Tuning)
• Aperture: 50 mm
• Focal Length: 350 mm
• F Ratio: F7
• Bandpass: <0.75 Angstroms @ 656 nm
• Focuser: Helical Focuser
• Blocking Filter: B400 Diagonal or B600 Diagonal (Choose from Options drop-down)
• Mounting: Integrated clamshell style with 1/4-20 tapped base
• Color: Pearl White with Black and Red accents

Choose an LS50THa with the blocking filter that is right for you:

B400 – for visual use
B600 – for larger field of view
All Lunt Solar Systems h-alpha telescopes require a Lunt Blocking Filter!