NiSi 49mm Filter Adapter MKII for Ricoh GR IIIx

The NiSi 49mm Filter Adapter MKII for Ricoh GR IIIx adds a standard 49mm filter thread to the GR IIIx compact camera. Precision-machined as a direct replacement for the Ricoh GN-2 ring adapter, it enables secure mounting for circular filters while preserving the camera’s compact form factor.

Designed for photographers who want to buy a 49mm filter adapter for Ricoh GR IIIx street, travel, and everyday shooting, this adapter expands creative control without a bulky rig. Use it with compatible diffusion, CPL, ND, UV, or protection filters to shape light, reduce reflections, slow shutter speeds, or protect the lens element.

The mechanical auto-lock system keeps the adapter firmly seated and helps prevent loosening during handheld shooting. Tool-free installation, a clearly marked alignment point, and compatibility with the NiSi PR-5 Lens Cap make it a practical accessory for compact camera workflows.

Key Features

• Purpose-Built Fit: Precision-machined for a gap-free, play-free fit on the Ricoh GR IIIx body.
• 49mm Filter Thread: Adds standard 49mm filter compatibility for expanded creative and protective filter use.
• Auto-Lock Mechanism: Mechanical locking system keeps the adapter firmly seated during handheld shooting.
• Tool-Free Installation: Marked alignment point allows quick attachment and removal without tools.
• Lens Protection Ready: Supports 49mm UV or clear protection filters to help guard against dust, scratches, and fingerprints.
• Creative Filter Support: Works with compatible 49mm Black Mist diffusion filters, CPL filters, ND filters, UV filters, and protection filters.
• PR-5 Lens Cap Compatible: Works with the NiSi PR-5 Lens Cap for Ricoh GR III/GR IV series, sold separately.
• Compact Camera Workflow: Adds filter flexibility while maintaining the GR IIIx camera’s portable shooting style.

Technical Specifications

• Brand: NiSi
• Product Type: Filter adapter
• Camera Compatibility: Ricoh GR IIIx
• Filter Thread: 49mm
• Ring Adapter Replacement: Ricoh GN-2 ring adapter
• Locking Mechanism: Mechanical auto-lock system
• Installation: Tool-free with marked alignment point
• Compatible Filters: 49mm Black Mist diffusion filters, circular polarizers, ND filters, UV filters, and protection filters
• Lens Cap Compatibility: NiSi PR-5 Lens Cap for Ricoh GR III/GR IV series, sold separately
• Camera Compatibility Note: Not compatible with Ricoh GR III or Ricoh GR IV
• USA SKU: NISI-RGR3x-ADII-49
• Manufacturer SKU: N-398247

What's Included

• NiSi 49mm Filter Adapter MKII for Ricoh GR IIIx