H-Beta 5.5nm CMOS-optimized
Baader
From ~$218.10
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In stock
The Baader H-Beta 5.5nm CMOS-optimized narrowband filter is precision-engineered for deep-sky astrophotography, specifically designed to isolate the hydrogen-beta emission line at 486.1nm with exceptional contrast and minimal optical artifacts. Optimized for modern CMOS sensors while equally effective with CCD cameras, this filter features Reflex-Blocker hard coatings and sealed Life-Coat edges that eliminate halos and resist environmental degradation. Recommended for optical systems from f/10 to f/3.5, the filter's narrow 5.5nm bandwidth enables 1:1:1 exposure ratios when combined with H-alpha and OIII filters for stunning Hubble Palette imaging of emission nebulae.
Specifications
| Optimized For | CMOS cameras (also suitable for CCD) |
| Center Wavelength | 486.1 |
| Coating Type | Reflex-Blocker hard coated with Life-Coat sealed edges |
| Filter Thickness | 3 mm |
| Half Bandwidth (FWHM) | 5.5 |