Nisi 37mm Adapter for P49 Filter Holder

37mm Adapter for NiSi P49 System

This aluminium-alloy adapter connects 37mm filters to the NiSi P49 49mm filter holder kit. It lets photographers use smaller-diameter filters on lenses with a 49mm front thread. The piece is built for the P49 system and expands creative options without requiring multiple filter sizes. It suits both amateur and professional users seeking a cost-effective step-up solution.

Sustained Use on the P49 Holder

The adapter locks into the P49 holder and remains secure during extended shooting sessions. Its metal construction resists deformation when filters are swapped repeatedly in the field. No moving parts or threads loosen under normal handling, so alignment stays consistent from the first frame to the last. The lightweight alloy adds negligible mass to the front of the lens during long carries.

Build and Daily Handling

Machined from aluminium alloy, the ring is durable yet light enough to leave mounted on the lens. The 37-to-49mm step-up design means the adapter sits flush between the filter and the holder without vignetting on compatible optics. Knurled edges give a sure grip when attaching or removing the piece with cold or damp fingers. It stores flat in a filter pouch alongside the P49 holder.