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NiSi 180x180mm Square HD Polariser filter

  • Ultra Low Color Cast, Ultra Low Reflection
  • High Definition
  • Ultra-thin frame design
  • Nitto original polarizing material
  • Blackened glass edge technology
  • Black fine grinding frame
  • Advanced frame embossing technology

NiSi Sigma 12-24mm f/4 HSM ART Series Adapter for NiSi 180mm Filter Holder

  • Vignetting free using the 180mm system Canon 11-24 filter holder even at 12mm
  • Use the 180mm system Canon 11-24 filter holder also on Sigma 12-24mm F4 lens
  • CNC machined from a single block of aviation-grade aluminum.
  • With matte black frosted finish on the surface.Gasket to prevent any light leaking.
  • The 180mm System Holder for the Canon 11-24mm 4.0L is sold separately and not included