HD WIDE ANGLE WITH MACRO LENS FOR CANON POWERSHOT G15 G16 (58mm Size, Tube/Ring adapter not included) - Walmart.com
Canon G16 Underwater Camera and Housing by Fantasea
Wide angle Telephoto Filters Lens Kit for Canon PowerShot G16 G15 Digital Camera | eBay
Amazon.com : Canon PowerShot G16 12.1 MP CMOS Digital Camera with 5x Optical Zoom and 1080p Full-HD Video Wi-Fi Enabled : Point And Shoot Digital Cameras : Electronics