LUNT LS50THa/B400PT H-alpha Solar Telescope with B400 Diagonal

LUNT LS50THa/B400PT H-alpha Solar Telescope with B400 Diagonal

DESCRIPTION
The LUNT LS50THa/B400PT is a solar telescope specifically designed for observing the Sun in H-alpha light. It features a 50 mm aperture and a 350 mm focal length. With a bandwidth of less than 0.75 Å, it reveals prominences, sunspots, filaments and surface granulation with clarity. The etalon is tuned via an integrated air-pressure tuning system (Pressure-Tuner) inside the optical tube.

The B400 blocking filter is built into a 1.25" diagonal and is optimized for visual observation. The focuser is a non-rotating helical model accepting 1.25" accessories. A mounting ring with standard 1/4"-20 photo thread is included. Weighing only 2.1 kg and 37 cm in length, it is ideal for travel and portable use.

Optional double stacking is possible with the LS50C filter, reducing the bandwidth to <0.5 Å for higher contrast.

TECHNICAL SPECIFICATIONS

• Type: dedicated H-alpha refractor
• Aperture: 50 mm
• Focal length: 350 mm
• Focal ratio: f/7
• Angular resolution: 2.8"
• H-alpha bandwidth: <0.75 Å
• Tuning system: Pressure-Tuner (air pressure)
• Blocking filter: B400 built into 1.25" diagonal
• Focuser: non-rotating helical
• Eyepiece holder: 1.25" (31.75 mm)
• Mounting ring with 1/4"-20 thread
• Tube length: 370 mm
• Width: 170 mm
• Height: 100 mm
• Weight: 2.1 kg
• Material: aluminium