Helium Core iPhone Camera Rig
The iPhone has wonderful cameras that let you capture amazing videos and photos anywhere. With the Helium Core smartphone rig, you will be able to attach lenses to your camera. It also supports flash, microphone, video lights, and other accessories. Helium Core has an aircraft-grade aluminum construction, so it will withstand your adventures.
The rig has a tool-less design, so you can remove the iPhone easily. You get 17 accessory mounts to attach your things. Costs under $170 at this time.