Canon 24-70 f/4L IS USM
With 2 aspheric and 2 UD elements, the EF 24-70mm f/4L IS USM delivers high- quality images with excellent detail throughout the entire zoom range. A 9-blade circular diaphragm delivers beautiful, soft backgrounds. It offers a minimum focusing distance of 1.25 ft./0.38m across the entire zoom range and has a macro mode at the telephoto end with up to 0.7x magnification (minimum focusing distance becomes 7.87 in./0.2m) and is easily accessible with a one-touch switch. It features a Hybrid IS system with up to 4 stops of stabilization, compensating for both angular and shift types of camera shake, delivering effective stabilization even in macro. Inner focusing and ring-type USM deliver, fast, quiet AF, and full-time manual focus is available for manual focusing even while in AF mode. The durable EF 24-70mm f/4L IS USM is sealed for excellent dust and water resistance plus has fluorine coating on the front and rear elements reducing smears and fingerprints.
In terms of Minimum Focus Distance and Maximum Magnification the EF 24-70mm f/4 is more useful. It has a Macro mode with an MFD spec of only 7.9" that yields an MM of 0.7X. In comparison the EF 24-70mm f/2.8 L II has an MFD of 15" and an MM of 0.21X which is more typical of a normal zoom. If you need to shoot subjects close up at near 1:1 macro magnification then the EF 24-70mm f/4 offers utility that the other lens lacks.
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