Amazon.com : NEEWER Wide Angle Lens Compatible with Canon G7X Mark III Camera, 2 in 1 18mm HD Wide Angle & 10x Macro Additional Lens with Extension Tube, Bayonet Mount Lens Adapter,
CANON CENTURY XL-1 MK2 WIDE ANGLE ADAPTER – Old School Cameras
0.45x Super Wide Angle Lens W/ Macro & Adapter Ring For Canon Sx540 Sx530 Sx520 Hs Powershot Camera - Lens Adapter - AliExpress
52mm Wide Angle Lens Kit For Canon Eos 1200d/1300d And All Canon Dslr Camera, 1 - City Market