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Optolong L-Pro Filter For Nikon Canon NK-FF EOS-FF Clip on Filter

Optolong L-Pro Filter For Nikon Canon NK-FF EOS-FF Clip on Filter

Regular price $279.00 USD
Regular price Sale price $279.00 USD
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Optolong L-Pro Clip-On Filters

Unlock the wonders of the night sky with the Optolong L-Pro Clip-On Filters, tailored for Nikon NK-FF and Canon EOS-FF cameras. These innovative filters are designed to enhance your astrophotography experience by minimizing light pollution and maximizing the visibility of celestial objects.

Overall Review

Optolong's L-Pro Filter, aptly named for its professional-grade performance, stands out as a premier choice for astronomers and photographers alike. With its advanced multi-coating technology and precision manufacturing, it offers unparalleled clarity and contrast, making it ideal for capturing deep sky objects under light-polluted skies.

Product Specification

  • Brand: OPTOLONG
  • Type: L-Pro Clip-On Filter
  • Compatibility: Nikon NK-FF (D600, D610, D700, D750, D800, D800E, D810, D810A, DF) and Canon EOS-FF (5D2, 5D3, 6D)
  • Material: Aerometal with CNC Machining
  • Thickness: 1.0 mm
  • Surface Quality: 60/40
  • Transmission: High transmission (>90%) at major nebula emission lines (H-alpha, OIII, SII, H-beta)
  • Blocking: Precision off-band blocking of major artificial light pollution lines (Na, Hg)
  • Coating: Multi-layer anti-reflection coating, non-cementing optical substrate coating
  • Build: Ultra-thin filter cell to minimize vignetting, black anodized finish, extinction treatment to prevent reflection


  1. Light Pollution Suppression: Reduces the transmission of artificial light wavelengths, including mercury vapor and sodium vapor lights, while enhancing transmission of crucial nebula emission lines.
  2. Enhanced Visibility: Improves contrast and detail for both visual observation and photographic purposes, particularly in sub-rural areas with heavy light pollution.
  3. Durable Construction: Built with aerometal material and precision CNC machining for durability and reliability in various environmental conditions.
  4. Wide Compatibility: Compatible with a range of Nikon and Canon full-frame cameras, providing flexibility for astrophotographers to use their preferred equipment.


  • Astrophotography: Ideal for capturing stunning images of nebulae, galaxies, and star clusters with enhanced clarity and reduced light pollution interference.
  • Visual Observation: Enhances the visual experience by filtering out unwanted wavelengths and revealing finer details of celestial objects.
  • Urban Astronomy: Enables astronomy enthusiasts to observe and photograph deep sky objects from urban or suburban locations with significant artificial light sources.

Transform your Nikon or Canon full-frame camera into a powerful tool for astronomical exploration with the Optolong L-Pro Clip-On Filter. Capture breathtaking images of the cosmos with enhanced clarity and contrast, and immerse yourself in the beauty of the universe.

Note: Always adhere to safety warnings and avoid direct solar observation with the Optolong L-Pro Filter.


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