Antlia H-Alpha 36 mm 4,5 nm EDGE

Antlia H-Alpha 36mm 4.5nm EDGE Filter for Advanced Astrophotography

Discover the pinnacle of astrophotography with the Antlia H-Alpha 36mm 4.5nm EDGE Filter, specifically engineered for professional photographers aiming to capture the mesmerizing beauty of emission nebulae.

This state-of-the-art filter features an ultra-narrow half-width transmission window (FWHM) of just 4.5 nanometers, designed to capture the elusive red light at the 656.3 nanometer wavelength emitted by ionized hydrogen atoms. Experience unparalleled clarity and detail in your astrophotographs.

Outstanding Light Management

The Antlia H-Alpha filter excels in reducing unwanted light interference from sodium and mercury lamps, all while maintaining high transmission levels for the Hα spectral line. Crafted on high-quality optical glass, it minimizes internal reflections, ensuring your photos remain crystal clear.

Versatility and Performance

With a steep permeability window slope, this filter maintains consistent transmittance, even with shifts in the maximum permeability peak (CWL). It is versatile enough for use with telescopes of varying light intensities and is optimized for systems with light power up to f/3.

Note: This filter is specialized for astrophotography and is not recommended for visual or solar observations.

Key Highlights of the Antlia H-Alpha 36mm 4.5nm EDGE Filter:

• A bandpass filter crafted from high-quality optical substrate, optimized for maximum transmission of 656.3nm wavelength radiation.
• Compatibility with astrographs featuring light intensities up to f/3, ensuring minimal signal loss.
• An ultra-narrow half bandwidth of transmission (FWHM) at just 4.5nm.
• Optical density equivalent to OD5, guaranteeing efficient light pollution removal.

Technical Specifications:

• Filter Type: Bandpass Filter
• Filter Diameter: 36mm
• Filter Thickness: 2 ± 0.05mm
• Filter Shape: Round
• Pass Bands: Hα (656.3nm)
• Location of Peak Transmittance (CWL): 656.3nm
• Half Bandwidth (FWHM): 4.5nm
• Maximum Transmission: >90% ± 1nm from the maximum transmission peak
• Blocked Light Pollution Bands: Mercury Lamps (435.8nm, 546.1nm, 577nm, 578.1nm), Sodium Lamps (598nm, 589.6nm, 615.4nm, 616.1nm)
• Optical Density Equivalent for Blocked Lines: OD5 (300 - 1000nm)
• Surface Quality Index: 60/40 (According to MIL-O-13830)
• Parallelism: 30"
• Manufacturing Accuracy (RMS): λ/4

What's Included:

• Antlia H-Alpha 36mm 4.5nm EDGE Filter

Enjoy peace of mind with a 3-year manufacturer's warranty, covering delamination of the filter and substrate. Elevate your astrophotography and capture the cosmos in stunning detail with the Antlia H-Alpha 36mm 4.5nm EDGE Filter.