Well it's more or less a magnifying glass, but I can take beautiful pictures with my Nexus 5. By cons attention precisely on Nexus 5, the magnet used to secure the lens in conflict with the magnetic motor focus camera, they reversed polarity. If using the fixing ring that shook the image. The trick is to take off the magnet of the lens (I steeped in boiling water for 5-10 minutes and then I blew the magnet cutter) and stick it back in reverse (n 'overdo no super glue, put a drop and spread there). Let the glue dry well an hour or two, glue vapors can damage the lens of the Nexus. And now, Nexus-compatible lens without magnetic ring. I noticed that the camera warming, I do not know if this is normal or not by cons, I'm just scéances photo of 5 or 10 minutes in doubt, but it's worth it (see photos)