The Antlia H-alpha, OIII, SII Pro 7 nm Narrowband Filter Set is a premium solution specifically designed for monochrome CMOS astro camera owners. This narrowband filter set, which is well-suited for use under light-polluted urban skies, features a 7 nm transmission that blocks other wavelengths.
The Antlia narrowband deep-sky filters offer exceptional contrast, allowing astrophotographers to achieve excellent results even under light-polluted urban skies or in the presence of moonlight.
In summary, the advantages of the Antlia narrowband filters are as follows:
- High light transmission and minimal bandwidth serve to maximize contrast
- The steep transmission curve minimizes halos around bright stars
- Can be used in both light-polluted and dark locations
- Allows for longer exposure times even under strong moonlight
- Low transmission loss even when using telescopes and lenses with an F/3 focal ratio
- The matte black paint on the edges of the filter glass prevents internal reflections of scattered light
- Excellent optical quality reduces the need for image post-processing
- The filter material is high-quality Schott glass.
- They have at least lambda/4 or better surface accuracy, qualifying them as premium category.
- The optical surfaces are coated with anti-reflection and scratch-resistant coatings by the manufacturer