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Wavelength: Sodium D (5890
is compatible with most third party focus motors for easy remote control while imaging
You will also be able to see large sunspots when they appear on the sun
90-240VAC AC power adapter is included
prioritizing surface contrast at the expense of a dimmer image as compared to the 2
Daystar CALCIUM QUARK Filter solar astronomy Wavelength: Sodium D (5890Daystar 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
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