Dan Chung, award-winning staff photographer for Britain's The Guardian newspaper, is taking a novel approach to documenting the current Olympic Games. Chung is using an iPhone 4S, equipped with an iPro lens system. The results are pretty amazing. See http://www.guardian.co.uk/sport/2012...012-smartphone
The iPro system consists of a rigid iPhone case that includes a bayonet mount for three lenses: fisheye, wide angle, and 2X. The case also offers a way to attach the iPhone to a standard tripod. Price for the case, three lenses and tripod adapter is about $190. Read about iPro here http://www.iprolens.com/
Images are processed using the Nik Snapseed application ($5 through the iTunes app store). Snapseed includes the ability to email the finished photos. Here's a review http://www.dpreview.com/reviews/snapseed
To increase the iPhone camera's range, Chung is using a pair of Canon binoculars as an long lens. I have not found any detail on the binoculars Chung chose. Canon makes a wide range of bins, including two with optical image stabilization. Holding by hand a separate lens up to the phone certainly increases the degree of difficulty! I'd like more information about this aspect of Chung's project.