I am the original owner of this lens. This lens came as part of a kit for a canon digital rebel T6 eos camera. The lens screws onto the 55 mm lens converting it to a micro. I hardly used it as I don't do much micro, and to be quite honest, its probably not the best micro if you are interested in that. But if you are just getting started and want to try some micro to see if you enjoy that type of photography its probably not a bad entry lens for the price.