Overview
The NiSi Wide Conversion Lens for Ricoh GR Series (GR III, GR IIIx, GR IV) is a precision-engineered 0.78x wide-angle adapter designed to expand the creative potential of Ricoh’s GR compact cameras. Built for photographers who demand wider perspectives without compromising image quality, this conversion lens transforms the fixed-lens GR system into a more versatile tool for street, travel, landscape, and architectural photography.
With advanced optical coatings, seamless macro compatibility, and a durable aluminum construction, the NiSi PR-10 integrates effortlessly into your workflow while maintaining the performance and handling that GR users rely on.
Core Features
- 0.78x wide conversion expands the field of view for more dynamic and immersive compositions.
- Compatible with Ricoh GR III, GR IIIx, and GR IV using dedicated NiSi 49mm filter adapters.
- Maintains full compatibility with Macro Mode for close-up shooting without removing the lens.
- Multi-layer nano coating reduces flare and ghosting for improved contrast and clarity.
- Precision-machined aluminum alloy construction ensures durability and lightweight handling.
- Does not interfere with autofocus, metering, or camera functionality.
Expanded Wide-Angle Perspective
The 0.78x conversion factor transforms the GR III and GR IV’s 28mm equivalent lens into an approximate 21mm field of view, while the GR IIIx shifts from 40mm to approximately 31mm. This allows for wider framing with enhanced depth and context across a range of shooting scenarios.
Seamless Macro Mode Compatibility
Unlike many conversion lenses, the PR-10 works fully with the GR series Macro Mode, enabling smooth transitions between wide-angle and close-up shooting without removing the lens.
Advanced Nano Coating
NiSi’s anti-reflective multi-layer nano coating minimizes internal reflections, flare, and ghosting, delivering cleaner images with improved contrast and colour accuracy in challenging lighting conditions.
Durable Aluminum Construction
The lens housing is crafted from high-quality aluminum alloy, providing a strong yet lightweight build that is well suited for daily use, travel, and demanding environments.
Full Camera Integration
The conversion lens retains full camera functionality, ensuring autofocus, exposure, and metering systems operate exactly as intended with no additional setup required.
Adapter-Based Mounting
A compatible NiSi 49mm filter adapter is required for each GR model to securely mount the lens. Once attached, the lens integrates cleanly with the camera’s compact form factor.
Optical
| Conversion Factor | 0.78x |
| Effective Focal Length | 21 mm (GR III / GR IV), 31 mm (GR IIIx) |
| Coating | Multi-Layer Nano Coating |
Compatibility
| Camera Compatibility | Ricoh GR III, GR IIIx, GR IV |
| Mounting Requirement | NiSi 49 mm Filter Adapter (Model-Specific, Sold Separately) |
| Macro Mode Support | Yes |
Construction
| Material | Aluminum Alloy |
| Front Cap | Metal |
| Rear Cap | Metal |
General
| Functionality | Maintains Autofocus, Metering, and Exposure |
| Use Case | Street, Landscape, Architecture, Travel |
What's Included
- NiSi Wide Conversion Lens for Ricoh GR Series (GR III, GR IIIx, GRIV)
- Front Metal Lens Cap
- Rear Metal Lens Cap
- Barcode: 89859
- UPC Barcode: 6978079434610
- Supplier Code: N-547129