Logo
Optolong L-Ultimate 2” Dual Bandpass Light Pollution Reduction Imaging Filter

Optolong L-Ultimate 2” Dual Bandpass Light Pollution Reduction Imaging Filter

ADVERTISEMENT

Compare Buying Options

  • Optolong L-Ultimate 2" dual-3nm filter - Optics
    394.71
    TS2 Space

    Optolong L-Ultimate 2" dual-3nm filter - Optics

    Delivery date & cost shown at checkout

  • Optolong L-Ultimate Dual Bandpass Light Pollution Reduction Imaging Filter - 1.25"
    289.00
    Agena Astro

    Optolong L-Ultimate Dual Bandpass Light Pollution Reduction Imaging Filter - 1.25"

    Delivery date & cost shown at checkout

  • Optolong L-Ultimate Dual Bandpass Light Pollution Reduction Imaging Filter - 2"
    389.00
    Agena Astro

    Optolong L-Ultimate Dual Bandpass Light Pollution Reduction Imaging Filter - 2"

    Delivery date & cost shown at checkout

  • Optolong L-Ultimate Filter 2"
    389.00
    Orange County Telescope

    Optolong L-Ultimate Filter 2"

    Delivery date & cost shown at checkout

  • Optolong L-Ultimate 2" Light Pollution Dual Passband Imaging Filter 3nm Ha/OIII
    389.00
    Astronomics

    Optolong L-Ultimate 2" Light Pollution Dual Passband Imaging Filter 3nm Ha/OIII

    Delivery date & cost shown at checkout

  • Optolong L-eXtreme Dual-band Filter - 2-inch
    309.00
    OPT Telescopes

    Optolong L-eXtreme Dual-band Filter - 2-inch

    Delivery date & cost shown at checkout

  • Optolong L-Ultimate 2” Dual Bandpass Light Pollution Reduction Imaging Filter
    339.00
    Amazon.com

    Optolong L-Ultimate 2” Dual Bandpass Light Pollution Reduction Imaging Filter

    Delivery date & cost shown at checkout

  • Optolong 3nm L-ultimate 2 Narrowband Filter F/ Camera Light Pollution
    272.34
    eBay

    Optolong 3nm L-ultimate 2 Narrowband Filter F/ Camera Light Pollution

    Delivery date & cost shown at checkout

  • Optolong 3nm L-ultimate Dual Narrowband Filter Camera Light Pollution
    286.67
    eBay

    Optolong 3nm L-ultimate Dual Narrowband Filter Camera Light Pollution

    Delivery date & cost shown at checkout

  • Optolong 3nm L-ultimate Dual Narrowband Filter For Astronomical Color
    294.50
    eBay

    Optolong 3nm L-ultimate Dual Narrowband Filter For Astronomical Color

    Delivery date & cost shown at checkout

  • Optolong L-ultimate 2&8221; Dual Bandpass Light Pollution Reduction
    429.73
    eBay

    Optolong L-ultimate 2&8221; Dual Bandpass Light Pollution Reduction

    Delivery date & cost shown at checkout

  • Optolong L-ultimate Dual Bandpass Light Pollution Reduction Imaging
    350.10
    eBay

    Optolong L-ultimate Dual Bandpass Light Pollution Reduction Imaging

    Delivery date & cost shown at checkout

  • Optolong L-Ultimate 1.25"/2" Dual Bandpass Light Pollution Reduction Imaging Filter - New Pre-Order
    289.00
    AliExpress

    Optolong L-Ultimate 1.25"/2" Dual Bandpass Light Pollution Reduction Imaging Filter - New Pre-Order

    Delivery date & cost shown at checkout

  • Optolong L-Ultimate 2 "Dual Bandpass Lichtvervuiling Vermindering Beeldvorming Filter 3nm
    257.19
    AliExpress

    Optolong L-Ultimate 2 "Dual Bandpass Lichtvervuiling Vermindering Beeldvorming Filter 3nm

    Delivery date & cost shown at checkout

  • Optolong L-Ultimate 2" Dual Bandpass Light Pollution Reduction Imaging Filter
    389.00
    AliExpress

    Optolong L-Ultimate 2" Dual Bandpass Light Pollution Reduction Imaging Filter

    Delivery date & cost shown at checkout

Product Details

Difference: It is different from the series of dual-narrowband -eNhance and L-eXtreme in that L-Ultimate is a dual-3nm bandwidth filter that only passes through Ha and Olll emission lines. You will get a darker I sky background, more contrast of the image and the suppression on stars. L-Ultimate has also been optimized in terms of halo performance, so that there is no obvious halo when shooting on a bright star object.
Advantage: 1.The advantage of L-Ultimate is that it only passes through the emission lines OllI (500.7nm) and Ha(656.3nm), in which case all other light pollution emission lines are eliminated so that only the emission and reflection signals of the nebula are captured during imaging. Therefore, the sky background of the image is darker, and the contrast between the nebulae and the signal-to-noise ratio are improved to the greatest extent. In heavy light pollution areas, the product can also selectively filter light pollution and clutter signals through the emission lines of nebulae, and finally avoid the impact of light pollution on astrophotography.

Popular Products