Amazon.com : GW-4 Wide Conversion Lens for GR III Digital Compact Camera : Electronics
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
Ricoh GR III Digital Camera, Black W/GW-4 Wide Conversion Lens, Adapter, Battery 15039 N
Ricoh GW-4 21mm Wide-Angle Conversion Lens for Ricoh GR III Review
21mm Ultra-Wide Angle Review for Ricoh GR III (3) - ERIC KIM
For Sale - Sold Ricoh GR II + GW-3 wide-angle conversion lens + GV-1 viewfinder + accessories - PentaxForums.com
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Amazon.com : GW-4 Wide Conversion Lens for GR III Digital Compact Camera : Electronics
21mm Ultra-Wide Angle Review for Ricoh GR III (3) - ERIC KIM
Ricoh GW-4 21mm Wide-Angle Conversion Lens for Ricoh GR III Review