Photographer Darren Carroll used his iPhone 4S and the Hipstamatic app to capture these unique behind-the-scenes images from the PGA Championship at Kiawah Island. Hipstamatic is a retro photography app that allows users to "swap lenses, film, and flash settings" to re-create the look and feel of old-school plastic cameras. Carroll used Claunch 72 Monochrome "film," and the Watts and LuciferVI "lenses."