Ca-K LUNT LS18CaKMDs2 filter on extension cylinder

LUNT LS18CaKMDs2 Ca-K filter on extension cylinder

Calcium K-module in straight extension cylinder for use in normal astronomical telescopes with an aperture up to 100mm and a focal length of 1620 mm as a calcium K-solar telescope.

This calcium K module transforms your normal astronomical refractor into a calcium K solar telescope. It is very simple: Insert the Ca-K module into your telescope's 2" eyepiece focuser and you are equipped for your solar observations in the calcium K emission line.

Internal narrow-band filters allow a half-aperture width of up to 100mm and a focal length of up to 1620mm. For photography it is better to use a larger Ca-K module. The Ca-K module is built into a straight extension cylinder. For 2" eyepiece focusers in the case of the telescope and with a T2 thread connection in the case of the eyepiece and 1.25" eyepiece snapshots.

All necessary filter elements are included in this module. No additional filters are required.

The calcium K emission is at the limit of the visible range for the human eye. Many people have difficulties when making visual observations. This does not apply to photography. In this case, the Ca-K module offers you all possibilities in this wavelength.

TECHNICAL SPECIFICATIONS:

PROPERTIES

• Half-height width
• For telescopes with aperture up to 100mm and focal length of 1640mm
• On straight extension cylinder
• 2" sliding tube for use with 2" focuser
• Snap-in for 1.25" eyepieces
• T2 thread for camera connection

DELIVERY CONTENTS

• Ca-K module in extension cylinder
• Integrated blocking filter B1800 for a focal length up to 1620mm
• Instructions for use
• Color: Black
• Material: Aluminum