The Ricoh GW-4 is a 0.75x wide conversion lens designed specifically for Ricoh GR III and GR IIIx cameras (using the GA-1 or GA-2 adapter). It expands the effective focal length from 28 mm to 21 mm (full-frame equivalent), providing a wider field of view ideal for landscape, architectural, and documentary photography while preserving the GR series’ signature sharpness and image quality. The optical design features 4 elements in 3 groups, with multi-coated glass to minimize flare and chromatic aberrations, delivering high-contrast images with natural color reproduction. Its compact form and bayonet-mount adapter system ensure quick and precise attachment, maintaining perfect balance with the camera body. Supplied with a dedicated lens hood and protective case, the GW-4 is the perfect choice for photographers seeking to extend their GR’s versatility while maintaining professional-grade optical performance and consistent color rendering with the built-in lens.