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Optolong L-Pro Built-In Clip-On Canon EOS-FF Filter

Optolong L-Pro Built-In Clip-On Canon EOS-FF Filter

Regular price $279.00 USD
Regular price Sale price $279.00 USD
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Optolong L-Pro Built-In Canon EOS-FF Filter

Embark on a celestial journey and unveil the universe's splendor with the Optolong L-Pro Built-In Clip-On Filter for Canon EOS-FF cameras. Designed to combat light pollution while enhancing nebula emission lines, this filter is a must-have for astrophotographers seeking to capture clear and detailed astronomical images.

Overall Review

The Optolong L-Pro Clip-On Filter redefines astrophotography by effectively blocking unwanted artificial light sources while allowing essential nebula emission lines like OIII, Hβ, Ha, and SII to shine through. Its multi-bandpass design ensures vibrant colors and sharp contrast, making it an indispensable tool for both deep sky and wide-field astrophotography.

Product Specification

  • Brand: OPTOLONG
  • Type: L-Pro
  • Compatibility: Canon EOS-FF (5D2/5D3/6D)
  • Material: Aviation-grade Aluminum Frame
  • Transmission: ~90% at major nebula emission lines
  • Blocking Range: Blocks city lights (Na, Hg) effectively
  • Coating: Multi-layer anti-reflection coating for clarity
  • Weight: Lightweight and durable design


  1. Enhanced Nebula Viewing: High transmittance at OIII (496nm&500nm), Hβ (486nm), Ha (656nm), and SII (672nm), allowing detailed observation of emission and planetary nebulae.
  2. Light Pollution Control: Blocks high-pressure sodium and mercury lamps, improving contrast and visibility of celestial objects from urban environments.
  3. Premium Build: Constructed from superior aviation aluminum with CNC-molded precision, ensuring durability and optimal performance in various conditions.
  4. Multi-Bandpass Design: Offers precise roll-off at light pollutant emission lines, preserving natural colors and enhancing image quality without compromising on brightness.


  • Deep Sky Astrophotography: Perfect for capturing intricate details of emission nebulae and planetary nebulae with CCD and DSLR cameras.
  • Urban Astronomy: Enables observation and photography of celestial objects from light-polluted city skies by filtering out unwanted artificial lights.
  • Wide-Field Imaging: Ideal for wide-field astrophotography to capture expansive views of the night sky with enhanced clarity and contrast.
  • Cost-Effective Solution: Provides a cost-effective alternative to complex filter setups, making it accessible for amateur astronomers and photographers alike.

Unleash the full potential of your Canon EOS-FF camera with the Optolong L-Pro Clip-On Filter, designed to elevate your astrophotography experience under challenging light conditions. Capture stunning celestial phenomena with clarity and detail that reveal the beauty of the cosmos.

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


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