The Lunt 100mm Universal Telescope (LS100MT) with the B1200 blocking filter offers a versatile platform for both solar and nighttime observations. With its 100mm aperture and 714mm focal length, this telescope provides detailed views of solar features such as prominences and filaments, as well as celestial objects like planets and deep-sky targets.
Why Choose the B1200 Blocking Filter?
The B1200 blocking filter includes a 12mm clear aperture and is well-matched to telescopes with focal lengths up to approximately 1200mm. For the LS100MT's 714mm focal length, the B1200 provides a fully illuminated solar image at the focal plane without vignetting. Choosing the correct size blocking filter is essential—it ensures that the full solar disk passes through uncut, delivering the best possible contrast and performance for visual observers.
Optical Excellence
The LS100MT is built around a 100mm FPL-53 ED triplet lens, designed for excellent color correction and image sharpness. The f/7 focal ratio is ideal for both solar imaging and a broad range of nighttime targets. Lunar, planetary, and wide-field deep-sky observing are all well within its reach.
Solar Observing with Precision
Lunt’s internal pressure tuning system gives you fine control over the observed hydrogen-alpha wavelength, helping you reveal filaments, prominences, and surface detail with greater contrast and uniformity across the entire field of view. Unlike tilt-tuned systems that can introduce uneven illumination, pressure tuning allows you to Doppler shift the bandpass evenly for cleaner solar views.
Important Safety Warning:
Never look at the Sun through this telescope—or any telescope—without the hydrogen-alpha etalon and blocking filter properly installed. Permanent eye damage or blindness will result. The telescope must be used exactly as designed for safe solar observing.
Switching to Nighttime Mode
The LS100MT’s modular design lets you remove the solar components and attach a standard focuser assembly for nighttime observing. Once converted, it functions as a high-performance 100mm f/7 ED triplet refractor—perfect for stargazing, astrophotography, or even terrestrial viewing.
Mechanical Features
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100mm FPL-53 ED triplet optics
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714mm focal length (f/7)
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Internal pressure-tuned hydrogen-alpha etalon
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2" B1200 blocking filter in star diagonal
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2" rack & pinion focuser (nighttime configuration)
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Quick-swap modular rear cell
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Vixen-style dovetail bar and hinged rings with solar finder handle
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Custom foam-lined hard case for storage and travel
What’s Included:
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Lunt 100mm FPL-53 ED triplet optical tube
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Internal hydrogen-alpha etalon system
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B1200 blocking filter (2" diagonal)
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Rear focuser assembly for nighttime use
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Mounting rings and dovetail with integrated solar finder handle
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Hard foam-lined carrying case
