Compatible with both iPhone 4 and 4s, iPhone lens dial weighs ten ounces and comes with a pair of tripod mounts, so that the user can use it in portrait as well as landscape shots. Naturally, it will add some thickness to your iPhone, but take it on a positive note. Carry a camera and your iPhone at the same time and then carry only the iPhone attached with the Lens Dial, you will know the difference. At a price of $249, it is expensive then the iPhone itself, but it has the capability to compete with many dedicated cameras. You can purchase the device online from Photojojo without paying any shipping charges. It is available in a matte black body; no other choice.
Source : designbuzz