This new lens does what many pros thought couldn%27t be done %2D replace the previous L%2Dseries 28%2D70 f%2F2%2E8 lens with something even better%2E Extended coverage to an ultra%2Dwide angle 24mm makes it ideal for digital as well as film shooters%2C and the optics are even better than before with two Aspherical elements and a totally new UD glass element%2E It%27s now sealed and gasketed against dust and moisture%2C and a new processing unit makes the AF faster than ever%2E
- EF mount; standard zoom lens; Comes with Lens Cap E77U Rear Lens Cap Lens Hood EW-83F Soft Lens Case 1219.
- Ultra-low Dispersion glass with Fluorite elements; inner focusing ring; full-time manual focus; aspherical lens
- 24-70mm focal length
- f/2.8 constant maximum aperture
- UltraSonic Motor (USM) AF actuator
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