NiSi N-539163 Swift 49mm Adapter Ring Swift System

The NiSi Swift 49mm Adapter Ring serves as the critical link between a 49mm-threaded lens and the NiSi Swift filter system. Rather than threading filters on and off — a process that can be slow and risks cross-threading, especially in the field — this adapter ring screws onto the lens once and then accepts Swift filters via a quick press-on mechanism. For photographers who frequently add and remove filters during a shoot, this translates to noticeably faster workflow with less fumbling.

Constructed from high-grade aluminum, the adapter is built to withstand repeated use without degrading the lens thread or losing its secure fit. Its low-profile design keeps added bulk to a minimum, which is particularly welcome on smaller lenses that commonly use the 49mm thread size. The adapter is a single-purpose component within the NiSi Swift ecosystem, so its value scales directly with how heavily a photographer relies on Swift filters across their kit.