Ztylus Switch 6 iPhone Lens System
It's hardly the first add-on lens system for the iPhone. The Ztylus Switch 6 iPhone Lens System might be the most convenient, though. Designed for use with the iPhone 7 Plus, its sliding set of six lenses lets you switch between wide-angle, added telephoto, macro, super macro, and fisheye lenses quickly and easily, with no loose parts to misplace. It also has an integrated hand grip for added stability, and a mount on the bottom for a strap to keep things secure.