The Lunt Solar Telescope LS100MT Ha B1800 Allround OTA 100/714 is a dedicated H-alpha solar telescope designed to reveal details in the Sun's chromosphere. It can show prominences at the solar limb as well as features such as filaments and active regions across the solar disc.
Its H-alpha system is tuned to the 656.28 nm spectral line. The B1800 blocking filter (18 mm) is matched to this configuration. With an 100 mm aperture and 714 mm focal length (f/7.1), it offers a useful basis for choosing eyepieces and compatible imaging equipment. The optical design uses an OHARA FPL-53 triplet. Please note that models specified as an OTA are supplied without a mount.
Safe solar observing: Use the telescope only when the complete, undamaged H-alpha filter system is correctly assembled, and follow the manufacturer's instructions. Never look at the Sun through the telescope if any part of the solar filter system is missing or damaged.
Technical data
| Aperture | 100 mm |
| Focal length / focal ratio | 714 mm / f/7.1 |
| Optical design | OHARA FPL-53 triplet |
| Spectral range | H-alpha, 656.28 nm |
| Blocking filter | B1800, 18 mm |
| Configuration | All-round OTA, mount not included |
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