Daystar CALCIUM QUARK Filter solar astronomy 5mm) for 45mm or larger

5mm) for 45mm or larger outside diameter tubes

90-240VAC AC power adapter is included

Our telecentric optical system offers a full disk field of view visually

making it ideal for solar observation with Daystar Filters

You will also be able to see large sunspots when they appear on the sun

Daystar CALCIUM QUARK Filter solar astronomy 5mm) for 45mm or largerDaystar Quark Calcium H Model Filter is the first Calcium Eyepiece for F 7 or longer focal ratio refractors. This new, All In One design marries high quality components of adapters, snouts, and Daystar Calcium H filter into one simple assembly. Through design efficiency and optimization, now users can enjoy the known high quality optics of Daystar at an affordable price. Why Calcium H line? Many astronomers forget that the Calcium H line and K line