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Alpine Astronomical Baader Planetarium Double-Stacked Ca-K Solar Imaging Filter (1.25")
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Alpine Astronomical Baader Calcium Gen-II Unstacked Ca-K Solar Imaging Filter with LPFC (1.25")
BH # ALCAKII MFR # CAKII
Key Features
- For Solar Imaging in Calcium K-Line
- Shows Super-Granulation & Ellerman Bombs
- 5nm-Wide Bandpass, Centered at 395nm
- Reflex-Blocker Hard Coated