Kenkos real pro 7x telephoto lens is a high quality optical lens designed for clip on attachment to smartphones tablets laptops and even monitors which have a built in camera it multiplies the original focal length by 7x to give super magnified images this turns a standard lens into a super telephoto able to bring distant objects up close for dramatic effect the lens can also be used as a hand held magnifying monocular by attaching the eyecup supplied optical glass with multi layer coa