NiSi Filter Adapter (PR-8) for Ricoh GR4
The NiSi Filter Adapter (PR-8) makes your Ricoh GR4 compatible with standard 49mm screw-in filters. It’s ideal if you want more control over light and reflections, or if you’d like to protect the front element with a UV or protection filter.
Designed specifically for the GR4, the adapter replaces the camera’s standard ring for a seamless, secure fit. It attaches quickly so you can switch between a pocketable setup and a filter-ready setup in seconds.
With a standard 49mm thread, you can use NiSi filters as well as any other 49mm filters you already own—ND for long exposures, CPL to cut reflections, or a Black Mist filter for a softer, cinematic look.
Built from aluminium alloy, the adapter stays lightweight and tight on the camera. That way you keep the GR4’s compact feel, while gaining the flexibility of a proper filter setup.