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Antlia Quadband Light Pollution Filter - 2"

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Antlia
ANT-QUADBAND-2
SKU
ANT-QUADBAND-2

The Antlia Quad Band filter is designed to cancel orange/yellow wavelengths and enhance deep-sky object clarity in areas with moderate light pollution.

OUR PRICE $359.00

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    Capture breathtaking celestial wonders like never before, even under city lights, with the Antlia Quad Band Anti-Light Pollution Filter. This innovative filter unlocks vibrant details invisible to the naked eye, offering astrophotographers a powerful tool to push the boundaries of deep-sky imaging.

    Specifications:

    Glass thickness

    2.0 mm ±0.05

    Optical flatness

    1/4 λ (wavefront)

    Bandpass transmission

    > 92%

    Off-band transmission

    OD4 @ 300-1050 nm

    Coating

    Double-sided multilayer nano-coating

    Surface quality

    60/40 (in accordance with US military watch MIL-O-13830)

    Parallelism

    30"

     

    Spectrum Specifications:

     

    H-alpha

    Sii

    Oiii

    H-beta

    Nii

    Wavelength

    656.3nm

    671.6nm

    672.4nm

    495.9nm

    500.7nm

    486.1nm

    658.3nm

    654.8nm

    Peak Transmission

    >92%

    >92%

    >92%

    >92%

    >92%

    Blocking

    ≥OD4@300-1050nm

    Filter Thickness

    2nm+/-0.05mm

     


    Key Features:

    • Unveils faint objects: Blocks intrusive artificial light from sodium vapor lamps, mercury vapor lamps, and skyglow, revealing hidden treasures like galaxies, nebulae, and star clusters.

    • Broadband and narrowband versatility: Works with a wide range of targets, including both broadband objects like the Whirlpool Galaxy and narrowband emission nebulae like the Lagoon Nebula.

    • Fast optics compatibility: Optimized for telescopes with focal ratios as fast as f/2, ideal for capturing faint details quickly.

    • Near-infrared (NIR) transmission: Captures vital signals from certain deep-sky objects, often missed by standard filters, thanks to modern camera sensitivity and reduced artificial light pollution in the NIR region.

    • Exceptional halo suppression: Ensures sharp, clear images of even faint objects near bright stars, perfect for capturing the Horsehead Nebula or other challenging targets.

    • High-quality construction: Features edge-blackening for superior stray light control and individual testing for guaranteed performance. The parfocal design ensures the focus remains consistent when switching filters.


    Additional Notes:

    • Not recommended for fast refractors due to potential chromatic aberration.

    • For optimal performance with color cameras, ensure a compatible AR-cut window is present.

    • Available in 2" mounted size.

    Unlock the potential of your astrophotography with the Antlia Quad Band Anti-Light Pollution Filter. Experience the universe in stunning detail, even from light-polluted skies.

    Disclaimer: Never look directly at the sun through any Antlia filter. Serious eye damage may occur.

     

    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-QUADBAND-2

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