LS50THa/B400PT (New standard ≤ 0.35 Å)

50 mm H-alpha solar telescope - B400 blocking filter & Helical eyepiece holder

This 50 mm H-alpha solar telescope is designed for detailed observation of the solar chromosphere in the H-alpha line (656.28 nm). With a diameter larger than 40 mm, it offers greater resolution and brightness to reveal protuberances, filaments, active regions and the fine texture of the solar surface.

This version is equipped with a B400 blocking filter as well as a helical eyepiece holder, simple, precise and perfectly suited to visual observation.

H-alpha solar observation

Optimized to isolate the H-alpha band, this system makes it possible to observe :

• Disc edge protuberances
• Dark filaments on the solar disk
• High-contrast surface details
• Daily evolution of solar activity

The 50mm aperture brings a significant gain in resolution over more compact models.

B400 blocking filter

Visit blocking filter B400 guarantees safe solar observation by allowing only the useful H-alpha band to pass through.

• Optimized transmission for the H-alpha line
• Compact size, compatible with 1.25″ accessories
• Suitable for visual use

Helical eyepiece holder

Visit helical focuser ensures smooth focusing by rotation. Lightweight and reliable, it's ideal for simple, portable set-ups.

• Progressive, precise focusing
• Compact design
• Ideal for visual solar observation

Key features

Why choose the 50 mm?

• Higher resolution than 40 mm models
• Detailed and secure H-alpha observation
• Compact, easy-to-transport instrument
• Ideal for discovering and tracking solar activity

Visit 50 mm H-alpha solar telescope with B400 filter and helical focuser is an excellent gateway to high-resolution solar observation, with an excellent compromise between performance, simplicity and portability.