Bresser Lunt LS40FHA H-Alpha Double-Stack Solar Filter for LS40THA Telescope

​Expected To Be Available From Autumn / Winter 2023

Double-Stack Filter For Ls40Tha Telescopes.

The Bandwidth Of H-Alpha Systems Can Be Reduced By So-Called “Double-Stacking”. A Smaller Bandwidth Provides Much More Contrast At The Solar Surface, Thereby Many More Details Will Become Visible.

Double-Stacking With A Bandwidth Of Only <0.55 Angstrom Is Also Possible At The Ls40Tha Telescopes. Therefore Lunt Solar Systems Has Especially Designed This Ls40Fha Double-Stack Filter In Compact Housing. The Filter Threads Directly Onto The Ls40Tha Telescopes.

Features

• Aperture: 40Mm
• Bandwidth: <0.55 Angstrom
• Tuning: Mechanical Tilt-Tuning
• Housing Diameter:
• Length:
• Weight:
• Front Thread:
• Rear Thread:
• Only Usable Together With A Ls40Tha Telescope!

• Ls40Tha H-Alpha Double-Stack Filter
• Instruction Manual