A versatile 24 70mm f4 l series lens with macro mode for up to 07x magnification ultrasonic af provides fast near silent focusing ud and aspherical elements deliver superb image quality versatile zoom range tackle a variety of subjects from landscape to portrait to documentary the ef 24 70mm f4l is usm is an ideal standard lens for your full frame canon dslr featuring wide angle standard and telephoto focal lengths and a constant f4 maximum aperture that does not change as the lens is z