A 3.5x lens is designed for the serious nature or sports photographer. Increase your current zoom, whether optical or digital, by 3.5 times! This high quality lens will get you in really close to the action. Made of aluminum in black matte finish, this lens is auto-focus, has infrared capabilities, can accept 72mm filters and includes a case, bottom cap and top cap. This lens arrives in 58mm. An appropriate ring is supplied depending on size ordered.