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Optolong CLS Filter Clip-in Filter for EOS-C Camera

Optolong CLS Filter Clip-in Filter for EOS-C Camera

Regular price $126.00 USD
Regular price Sale price $126.00 USD
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Optolong CLS Filter Clip-in Filter for EOS-C Camera

Transform your urban astrophotography experience with the Optolong CLS Filter Clip-in Filter for EOS-C Camera. Designed to combat light pollution and enhance contrast, this filter is your passport to capturing stunning images of deep sky objects with ease and clarity.

Product Specification

  • Compatibility: Designed for Canon EOS-C cameras including 7D Mark II, 80D/800D, 77D/70D/760D/750D/700D, 650D/600D, 550D/500D, 400D, 100D/1100D/1200D/1300D. (Not compatible with EF-S lenses.)
  • Construction: Crafted from high-quality aluminum with multi-coating on all surfaces.
  • Transmission: Provides 95% transmission of key nebula emission lines (H-beta 486.1nm, OIII 495.9nm and 500.7nm, H-alpha 656.3nm, SII 672nm) while blocking 0.1% of major artificial light pollution wavelengths (Hg at 435.8nm, 546.1nm, 577nm, 578.1nm, Na at 598nm, 589.6nm, 615.4nm, 616.1nm).
  • Package: Includes the Optolong CLS Filter for Canon EOS cameras in a protective PP material plastic box.


  1. Light Pollution Reduction: Blocks wavelengths of mercury and sodium vapor from artificial lighting, significantly reducing skyglow and light pollution.
  2. Enhanced Contrast: Allows critical OIII, H-Alpha, and H-Beta bands through, enhancing contrast and extending possible exposure times for deep sky imaging.
  3. Versatile Application: Ideal for capturing galaxies, nebulae, and star clusters in urban environments, making it a cost-effective entry into deep sky astrophotography.
  4. Quality Construction: Built with durable aluminum and multi-coated surfaces to ensure optimal light transmission and durability.


  • Deep Sky Imaging: Perfect for photographing distant galaxies, colorful nebulae, and intricate star clusters with enhanced clarity and contrast.
  • Urban Astrophotography: Enables astrophotographers to shoot from within light-polluted cities, mitigating the effects of urban light sources.
  • Traditional Photography: Beyond astrophotography, experiment with the filter for traditional photography to achieve unique and creative effects with enhanced color and contrast.

Unlock the potential of your Canon EOS-C camera with the Optolong CLS Filter Clip-in Filter. Whether you're capturing the beauty of the night sky or exploring creative photography techniques, this filter empowers you to see beyond the city lights and into the cosmos, making every shot a masterpiece of celestial wonder.

Caution: This filter is not designed for solar observation. Please adhere to safety warnings to protect your vision.


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