Lunt LS60MT/B600 Multi-Purpose (Day/Night) Apochromatic Telescope

The Lunt LS60MT/B600 is a premium modular H-alpha solar telescope designed to make the changing face of the Sun the centre of your observing. Its dedicated 60 mm H-alpha aperture and individually verified 0.45 Å bandpass are designed to reveal the fine structure of the solar chromosphere, including prominences, filaments and active regions that cannot be seen through a conventional white-light telescope.

At the heart of the LS60MT is an internally mounted, pressure-tuned H-alpha etalon. Lunt’s Doppler True tuning system uses barometric pressure adjustment to fine-tune the etalon to the H-alpha line, allowing the observer to optimise the view of changing solar features. The result is a purpose-built solar instrument that invites extended observation rather than simply a quick look at the Sun.

The B600 blocking filter has a 6 mm clear aperture and forms an essential part of the H-alpha optical and safety system. This configuration is particularly suited to visual solar observation with a relatively compact blocking-filter aperture.

The telescope uses a professional-grade FLP51 ED doublet with a native 70 mm aperture and 420 mm focal length. Remove the H-alpha module and the LS60MT becomes a conventional 70 mm f/6 ED refractor, extending its use to the Moon, planets, double stars and a wide range of night-sky targets. The same optical tube can therefore serve as both a dedicated solar telescope and a versatile night-time refractor.

Focusing is handled by a 2-inch dual-speed rack-and-pinion focuser with 10:1 fine adjustment. The focuser is also compatible with the ZWO EAF for motorised focusing, making the LS60MT suitable for both visual observation and astrophotography.

For observers who want to explore an even narrower slice of the H-alpha spectrum, the LS60MT can accept an optional double-stack module. Lunt specifies a combined bandpass below 0.28 Å when the additional module is fitted, further increasing the telescope’s capability for detailed H-alpha observation.

The LS60MT/B600 is therefore more than a dedicated solar telescope. It is a compact premium instrument that brings the Sun’s constantly changing activity to life during the day, then converts into a 70 mm ED refractor when the Sun sets.