The B016 macro zoom lens has a focal range of 16 to 300 mm for an optical ratio of 18.8x, allowing for extreme close-ups.This stabilised lens includes Piezo Drive motorisation, which is fast and silent in operation. Its optical unit consists of 16 elements in 12 groups, including three aspherical elements and two molded glass elements with low refraction for rendering ralistic images.This weatherproof lens is ideal for outdoor shooting.