Urth 67-40.5mm Adapter Ring for 75mm Square Filter Holder

Versatile 67-40.5mm Adapter Ring

The Urth adapter ring connects a 40.5mm lens thread to a 75mm square filter holder, expanding creative options for photographers who use multiple lenses. Its lightweight alloy construction and matte black anti-reflective finish reduce glare while maintaining durability for regular field use. True threads ensure a secure mount between the lens and filter holder even in challenging shooting conditions. This accessory unlocks the full potential of a square filter system across different lens diameters.

Lightweight Alloy With Anti-Reflective Finish

The matte black coating minimises internal reflections that can degrade image quality during bright or high-contrast scenes. A robust yet light alloy body resists wear from frequent mounting and removal without adding noticeable bulk to the lens barrel. True-cut threads engage smoothly, preventing cross-threading and maintaining a firm lock when the holder is rotated for graduated filter positioning. The compact profile avoids vignetting on wider focal lengths.

Adapts 40.5mm Lenses To 75mm Holder System

Photographers with 40.5mm threaded lenses can now use a standard 75mm square filter holder without purchasing separate holders for each lens diameter. The jump is worth it when a filter kit is already built around the 75mm format and only the thread size differs. It does not serve lenses with other thread sizes or photographers who rely on circular screw-in filters exclusively.