Product Features Description This 52mm 3x professional telephoto conversion lens has been crafted to meet the highest optical standards for it"s type in the photo industry. It has been designed to work with ANY digital, still and video cameras which have 52mm filter thread. You just screw this lens on front of your existing lens. It can also fit other thread sizes, such as 49mm, 55mm, 62mm and etc., using appropriate step up or step down adapter ring.