Antlia 4.5nm EDGE Filters are engineered to overcome the challenges of conventional narrowband filters, which often experience significant transmission loss due to Central Wavelength (CWL) shifts. With a guaranteed transmission rate of over 90% (T>90%) within a 1nm range of the central bandwidth, Antlia 4.5nm EDGE Filters deliver outstanding performance for both long focal ratios and fast optical systems. Blue-shift analysis confirms their suitability for systems as fast as f/3, minimising signal loss and optimising imaging quality.
Applications and Performance
Antlia 4.5nm EDGE Filters provide high transmittance and narrow bandwidth to maximise contrast in astrophotography.
These filters feature a steep spectral profile to minimise halos around bright stars, ensuring clean and precise images.
Constructed with a single optical-grade substrate, Antlia 4.5nm EDGE Filters eliminate internal reflections for enhanced reliability.
Designed for imaging deep-sky objects emitting H-alpha, SII, and OIII wavelengths, such as emission nebulae, planetary nebulae, and supernova remnants.
Antlia 4.5nm EDGE Filters excel in both light-polluted and dark-sky environments.
Extend imaging opportunities with Antlia 4.5nm EDGE Filters, even under moonlit skies.
Optimised for optical systems as fast as f/3, these filters minimise signal loss while maintaining superior image quality.
Note: These filters are designed specifically for astrophotography and are effective for capturing H-alpha, SII, or OIII emissions.
Black anodised finish with non-fading laser engraving.
Important Notes
Not recommended for solar observing or visual observation.
Warranty: 3 years against delamination.
Warning: Do not look at the Sun with Antlia 4.5nm EDGE Filters. Serious eye damage will result.
Manufacturer's Note
Antlia 4.5nm EDGE Filters are meticulously designed to deliver high-performance astrophotography results. Each filter undergoes rigorous quality control to ensure high transmittance, precise band-pass parameters, and exceptional optical reliability. While halos around bright stars are rare due to advanced engineering, minor halos may occur with certain optical setups. Higher-end filters, such as Astrodon or Chroma, can guarantee halo-free images, but Antlia 4.5nm EDGE Filters provide an exceptional price-to-performance ratio, making them an excellent choice for most users.
Return Policy: Returns are not accepted for halo-related issues.
Antlia 4.5nm Edge Filters
£194.00
£185.00
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