USB Fever is selling detachable magnetic lenses in fish-eye, 2x zoom and wide angle/super macro. The iPhone lens attachments offer magnetic connections or a self-adhesive ring for a magnetic attachment, and are made with high-grade aluminum and glass. The Wide Angle lens attachment offers a .67X magnification and macro capability, with two elements in two groups. The telephoto lens offers a 2X magnification, with two elements in two groups, and the fisheye gives a .28X magnification, with a 170-degree field of view, featuring four elements in four groups.
