Solar filter LUNT H-Alpha LS50FHa / B1800d2

LUNT H-Alpha solar filter LS50FHa / B1800d2

Solar filter system with blocking filter B1800 for front mounting on telescopes with a 2" eyepiece focuser and a focal length of up to 1620mm.

The LS50FHa H-Alfa Etalon solar filter system with 50mm free aperture (no central blocking) can be used with common refractors and almost all other telescopes. The LS50FHa features a half-height width of approx

The system includes the B1800 blocking filter designed for telescopes with a focal length of up to 1620mm. The larger blocking filters, which are available as an option, are therefore for longer focal lengths. The blocking filter is incorporated in a 90° zenith prism for 2" eyepiece focusers. This zenith prism is equipped with an attachment for 1.25" eyepieces and a T2 camera connection.

By supplementing it with an optional available Double-Stack Etalon system you can reduce the width at half height to approx

TECHNICAL SPECIFICATIONS:

PROPERTIES

• Aperture: 50mm
• No central obstruction
• Half-height width
• Tuning: etalon tilting
• Housing diameter: 95mm
• Length: 73mm
• Weight: 0.7 kg.
• Front thread: M90x1 internal thread
• Rear thread: M90x1 external thread
• Filter-blocking: B1800 on 90° zenith prism for 2" eyepiece focusers
• Max. telescope focal length: 1620mm

DELIVERY CONTENTS

• Solar filter LS50Fha
• Blocking filter B1800 (for 2" eyepiece focuser) on zenith prism
• Carrying case
• Instructions for use

Instructions for use

• Color: white
• Material: Aluminum, Glass

Note: The telescope in the picture only serves to show the assembly of the item.