Antlia Edge Ha 4.5nm Narrowband Filter - 2"

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Antlia's 4.5nm Edge Ha 2 inch filter captures faint nebulae details with laser focus. With contrast its fast optic compatibility, and parfocality, it's your gateway to stunning deep-sky astrophotography.

OUR PRICE $499.00
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    Experience unparalleled astrophotographic results with the Antlia H-Alpha 4.5nm Edge filter, designed to elevate your deep-sky imaging capabilities. This meticulously crafted filter offers exceptional performance at an accessible price point, making it a valuable asset for both seasoned astrophotographers and those embarking on their celestial journey.

    Key Features:

    Exceptional Narrowband Isolation: The 4.5nm bandpass meticulously targets the Hydrogen Alpha line (656.3nm), offering a 1.5% transmission window within the visible spectrum. This translates to superior signal-to-noise ratio and breathtaking contrast, revealing the intricate details of nebulae with remarkable clarity.

    Unrivaled Contrast & Light Suppression: Experience a deeper, darker background thanks to the advanced edge-blackening technology. This effectively eliminates stray light and internal reflections, ensuring the nebulae become the true focal point against a void of inky blackness.

    Uncompromised Performance for Fast Optics: Utilize the filter without sacrificing image quality, even with systems as fast as f/3. The Antlia Edge delivers exceptional performance with Hyperstar and RASA setups, capturing fleeting details with utmost precision.

    Rigorous Quality Control & Parfocality: Each filter undergoes meticulous individual testing, ensuring they meet the highest quality standards. The tight tolerance of the substrate guarantees a maximum deviation of only ±0.05, making them perfectly parfocal for seamless switching between filters.

    Simplified Workflow: Eliminate the need for a separate IR-cut filter. The Antlia Edge effectively blocks both ultraviolet and infrared light, streamlining your astrophotography setup and maximizing exposure time for capturing faint details.


    Passing band 4.5 nm (FWHM)
    Glass thickness 2.0 mm ±0.05
    Optical flatness 1/4 λ (wavefront)
    Bandpass transmission 90%
    Off-band transmission OD5 @ 300-1050 nm
    Coating Double-sided multilayer nano-coating
    Surface quality 60/40 (in accordance with US military watch MIL-O-13830)
    Parallelism <30"
    Glass type Monolithic optical substrate (non glued)
    Filter size Mounted 1.25", 2", Unmounted 31mm, 36mm, 50mm round


    Important Safety Note: Never attempt to observe the sun with this filter. Doing so can result in irreversible eye damage.

    Antlia: Experts in Astronomy Filters

    Antlia Astronomy Filters are built by Deep-Sky Photography Enthusiasts for Enthusiasts of Astrophotography all around the globe. Antlia prides itself on producing a series of exceptional quality, fully multicoated narrowband, dual-band, planetary and LRGB filters for astrophotography, designed for use with a range of monochrome and colour DSLR, CMOS and CCD cameras.

    Product Code: ANT-Ha4.5nmEDGE2

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