HD FISHEYE LENS+MACRO + TELEPHOTO ZOOM LENS + REMOTE FOR CANON POWERSHOT G16 | 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
Nauticam NA-G16 Underwater Housing for Canon Powershot G16 Camera