By David Ponce
We often talk about lenses that you can add to your iPhone camera to extend its usefulness. There is the case with the polarizing lens. Then there’s the case with the dial that looks weird and unwieldy. And let’s not forget the SLR lens attachment. But what most of these have in common is their general bulk. Gizmon’s solution is a lot simpler and smaller. They’re clip-ons that fit perfectly over the camera on an iPhone 4 and 4S, and give you fisheye, circular polarizer and 3 image mirage filter. When done, just pull them right off and stuff them in your pocket. They’re $35 each and are available now.