The iPhone has a nice camera as is, but if you want to be able to take pictures at up to 8x zoom, then you need the Eye Scope. The Eye Scope is a camera lens attachment that takes your iPhone photos to a whole other level.
The Eye Scope comes with a special case used to attach your lens to. You also get a tripod in case you are trying to engage in some sort of smartphone photoshoot. Cameras can be expensive, so save your money and pick up this kickass iPhone add-on instead.