Super telephoto zoom lens series canon l lens mount canon ef lens speed 4 focal length 70 300 mm zoom factor 43 times suitable for sensor types aps c full frame construction zoom lens area of use sports photography animal photography image stabiliser focus manual focus auto focus af motor ultrasonic motor usm closest focusing distance 120 cm lens type ud lens construction groupselements 1419 number of aperture blades 8 minimum aperture 3