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Optolong L-Ultimate Dual-3nm Filter

Optolong L-Ultimate Dual-3nm Filter

Regular price $389.00 USD
Regular price Sale price $389.00 USD
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Introducing the best light pollution filter for Bortle 8, the Dual Bandpass Light Pollution Reduction Imaging Filter — your essential tool for achieving unparalleled clarity and contrast in your astrophotography endeavors. Tailored for both 2" and 1.25" setups, this filter is your key to capturing the wonders of the cosmos.

The best light pollution filter for Bortle 8 Dual Bandpass Filter stands out as a 3nm dual band marvel, meticulously engineered to combat light pollution and elevate your astrophotography experience. Focused on H-Alpha (red) and OIII (green-blue) emissions, this filter selectively isolates nebulae signals, delivering awe-inspiring images.

Key Features of the Best Light Pollution Filter for Bortle 8:

  1. Advanced Dual-Band Technology: The dual 3nm bandwidth ensures that only Ha and OIII emission lines pass through, eliminating unwanted light pollution for a darker sky background and enhanced contrast.
  2. Light Pollution Blocking: Bid farewell to interference from artificial light sources and atmospheric emissions, ensuring pristine images even in heavy light pollution areas.
  3. Optimized Halo Performance: Unlike other dual-narrowband filters, the best light pollution filter for Bortle 8 minimizes unwanted halos when capturing bright star objects.
  4. Versatile Compatibility: Suitable for DSLR, color/MONO CMOS, and CCD cameras, as well as telescopes with f-ratio f/4 or slower, providing flexibility in your astrophotography setup.
  5. Premium Construction: Crafted with precision, the filter features an optical glass substrate, 1.85mm thick B270 glass, and a multi-layer anti-reflection coating for durability and scratch resistance.
  6. Wide Blocking Range: With a blocking range of 300-1000nm (>OD4), the filter ensures effective elimination of unwanted wavelengths, allowing you to focus solely on capturing the beauty of H-Alpha and OIII emissions.

Optolong L-Ultimate Graph Chart Wavelength

The specialized design of the best light pollution filter for Bortle 8 offers astrophotographers a range of benefits, including a darker sky background, selective light filtering, and unmatched contrast. Experience the cosmos in all its glory by choosing the best light pollution filter for Bortle 8 Dual Bandpass Filter. Order yours now and embark on a journey to the stars.

This 3nm dual band filter is designed to significantly reduce the impact of light pollution, isolating nebulae emissions into H-Alpha (red) and OIII (green-blue). By blocking unwanted light pollution, maximizing nebulae signals, and darkening the sky background, it enhances the contrast and overall signal-to-noise ratio. The filter effectively blocks artificial light from mercury vapor lamps, sodium vapor lights, and unwanted natural light caused by the emission of neutral oxygen in the atmosphere.

The best light pollution filter for Bortle 8 only passes through the emission lines OIII (500.7nm) and Ha (656.3nm), eliminating other light pollution emission lines. This results in a darker sky background, improved contrast between nebulae, and an enhanced signal-to-noise ratio. In heavy light pollution areas, the filter selectively filters light pollution and clutter signals through nebulae emission lines, avoiding the impact of light pollution on astrophotography. Please note that this filter is not suitable for fast ratio systems.

    Why Choose Optolong L-Ultimate?

    Optolong L-Ultimate is the preferred choice for astrophotographers due to its advanced dual-band technology, effectively blocking light pollution in Bortle 8 areas. With optimized halo performance, versatile compatibility, and premium construction, this filter ensures a darker sky background, enhanced contrast, and superior image quality in your astrophotography endeavors.


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