For iPhone photography, the Olloclip 3-in-1 lens kit (US$69.99) has no peer. The kit includes high quality wide-angle, fisheye, and macro lenses ... but no telephoto lens. That hole in the Olloclip line has now been filled with the addition of the new Telephoto + Circular Polarizing Lens ($99.99) kit. This lens and filter combo is available for order now, and was scheduled to ship in late July, 2013 -- that date, of course, has come and gone, and the Olloclip website is still showing that the telephoto can only be pre-ordered.
The telephoto lens is a 2X lens, meaning that everything seen through it is magnified optically by two times. Like the other Olloclip lenses, the telephoto is made from optical glass and aluminum, much more durable and optically superior than plastic.
The entire little kit comes in two microfiber bags, one containing the circular polarizing lens and the other containing the iPhone 5 adapter with the telephoto. The telephoto can be used by itself, or the circular polarizing lens can be slipped onto the front of the telephoto lens to reduce glare and provide richer color.