The canon ef 24 70mm f4 l is lens is a high performance zoom lens with image stabilisation is and an inbuilt ultrasonic motor usm which provides fast near silent focusing lens consists of 2 ultra low dispersion ud and 2 aspherical elements to deliver superb image quality a 9 bladed aperture diaphragm provides out of focus areas with an attractive soft blur canon ef 24 70mm f4 l is lens features a tough and compact l series construction to protect lens from dust moisture and k