Why take an iPhone, a slim device that already takes decent photographs and add several macro magnifying lenses? For [Mathijs], simply because he could, But now he can take some awesome macro pictures.

[Bhautik] (maker of the tilt-shift Plungercam) took the concept further. With some more trademark plumbing supplies and a lot of duct tape, secured an interchangeable SLR lense assembly to the back of his iPhone.

http://hackaday.com/2009/12/01/doubl...-camera-hacks/