NiSi S6 150mm Filter Holder Adapter Ring for Sigma 20mm f/1.4 DG HSM Art

The NiSi S6 150mm Filter Holder Adapter Ring is precision-engineered for the Sigma 20mm f/1.4 DG HSM Art lens, enabling seamless compatibility with the NiSi S6 150mm filter holder system. This lightweight adapter ring slides securely over the lens's integrated hood and features a 360-degree rotating mechanism that allows independent adjustment of circular polarising filters without vignetting. Built from durable aluminium alloy construction, the adapter delivers reliable performance for landscape and architectural photographers working with ultra-wide optics. Quick installation and removal are possible without removing the lens from the camera, making this essential accessory ideal for professional field work.

• Eliminates vignetting on ultra-wide Sigma 20mm f/1.4 DG HSM Art lens
• 360-degree rotatable design for fine-tuned circular polariser control
• Supports both circular S6 filters and optional 150mm square filters
• Durable aluminium alloy construction for professional use
• Adapter only -- requires separate NiSi S6 filter holder system