Produits de la même famille
Why Purchase from All-Star Telescope?
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Whether you are a first timer needing help with setting up or an enthusiast that can't quite make that one thing work, our expert staff are ready to support your needs. With decades of knowledge and first hand experience we've been there and we can help you through it!
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Buy with confidence knowing that we accept returns up to 30 days after purchase. We want you to have something you will actually use and we are confident that we keep good quality products in our store with No Junk.
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Shipping around for the best price is tough, we make it easier by offering the best pricing in the market. But if you find a better price on an in-store item somewhere else we will match it!
Description du produit
The Antlia H-Beta Pro narrowband filter optimizes the full width at half maximum (FWHM) to a 3nm bandpass. As the bandwidth narrows, these 3nm Pro narrowband filters enhance the contrast of emission targets by effectively reducing unwanted background signals. Designed to achieve an impressive 88% transmission at the 486.1nm line, Antlia H-Beta 3nm Pro filters provide maximum signal and well-defined nebula structures. The out-of-band blocking specification is rated at OD5 (0.001%), ensuring excellent signal-to-noise ratio (SNR) and effective cutoff rates to minimize interference from other wavelengths. These improved sharp cutoff astrophotography 3nm Pro filters are specifically engineered to reduce halos around bright stars.
The Antlia 3nm Pro series currently comprises Ha, SII, OIII, SII and H-Beta filters that capture exceptionally narrow data from four channels, enabling a greater range of combinations in post-production to meet your diverse requirements.
Main Features
- High transmittance and smallest bandwidth to maximize contrast
- Steep spectral profile minimizes halos around bright stars
- A single substrate to eliminate internal reflections
- Narrowband Objects: H-Beta Emission Nebulae
- Use in light polluted areas and dark sites
- Extend imaging time when the moon is up
- All Antlia narrowband Pro filters can be used down to f/3 with minimal loss of signal
- All Antlia Narrowband filters unmounted are edge blackened to eliminate internal reflections from stray light
- Superior optical reliability reduces post image processing
- This filter is only effective for deep sky objects that contain H-Beta emissions
Specifications
| FWHM | 3nm |
| CWL (Central Wavelength) | 486.1nm |
| Peak Transmission | 88% |
| Blocking | ≥OD5 @ 300-1100nm |
| Filter Thickness | 2mm+/-0.05mm |
Articles, vidéos et liens supplémentaires
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