Camera Geekery: Ricoh GR Lens 28mm f2.8 L39 - Japan Camera Hunter
Ricoh Gr Iii Premium Digital Camera With Conversion Lens, Lens Adapter & Battery : Target
Amazon.com : RICOH Lens Adapter GA-2 for RICOH GR IIIx [ Used When The Tele-Conversion Lens GT-2 is Attached] [GT-2 is Automatically Detected, Cropped, and Image stabilization is Optimized. ] : Electronics