I haven't seen a great data-driven review of the different smartphone cameras and accessory lenses, but there have been some attempts. Seems like the Schneider

I haven't seen a great data-driven review of the different smartphone cameras and accessory lenses, but there have been some attempts. Seems like the Schneider and ALPA are best (but pricey), with Olloclip coming in as a decent cheap choice. But to my eyes, reviews like this show the many depressing weaknesses of smart phone cameras: http://www.photigy.com/selecting-the-right-lens-for-iphone5-test-review-1/ http://www.photigy.com/selecting-the-right-lens-for-iphone5-...