Canon 3443C002 Drop-In Filter Mount Adapter EF-EOS R with Variable ND Filter A

Lens adapter for EOS R system

The Canon 3443C002 Drop-In Filter Mount Adapter connects Canon EF and EF-S lenses to EOS R mirrorless bodies. It is built for photographers who want to keep using their existing lens collection while gaining the benefits of the newer camera platform. The adapter maintains full electronic communication between lens and camera body.

Drop-in variable ND filter slot

A built-in filter drawer accepts a supplied variable neutral density filter, letting you adjust light reduction without swapping screw-on filters for different lens diameters. The adapter body is sealed against dust and moisture, so the mechanism stays reliable when shooting outdoors or in changeable weather. Its compact form adds minimal bulk to the lens mount.

Replaces separate filter sets and mount converters

This single unit removes the need to carry multiple ND filters matched to various filter-thread sizes, saving weight and time when moving between lenses. The upgrade makes sense for anyone regularly working in bright or changing light who wants exposure control without stacking glass in front of each lens. It is not suited for shooters who only use native RF mount lenses.