From Amazon
Fujifilm Fujinon Wide Conversion Lens for X100 Series Camera, Black (WCL-X100 B II)
Scan
Fujifilm WCL-X100 II Wide Angle Lens (Silver)
WEX Photo Video
Fujifilm WCL-X100 II Wide Angle Lens - Black
Clifton Cameras
Fujifilm WCL-X100 II Wide Conversion Lens - Black