page contents

Calcium Filters

Calcium Filters

Calcium Filters

 

Calcium H (396nm) can be seen visual and also imaged. Calcium K (393nm) is an imaging only wavelength. Both offer detail of the low to mid chromosphere but prominences and detailed views of sunspots can also be captured. The H and K Lines are very sensitive to magnetic fields and offer a totally different view of the Sun. At its most simple, Calcium K can be captured easily with just a K Line filter in a White Light system. For more detailed views including prominences, Calcium modules tuned to the H or K lines can be fitted to almost any refractor.

 


Display per page
Sort by

1.25" Double Stacked Calcium-K filter for imaging. Includes A4 Astrosolar Sheet (ND3.8). Not for visual use.

£249.00 *

Not in stock

2" Straight Calcium-K module for imaging. 2.4 Angstrom band pass. With B1200 Blocking Filter

£1,299.00 *

Not in stock

*
Prices include VAT, plus delivery