About this item: 
NIKKOR Z 24-70mm f/ 2.8 is a compact mid-range zoom that is indispensable for a wide range of photo and video applications, as well as the ideal partner for the compact Z series cameras 
With an f/2.8 constant maximum aperture, exposure is consistent across the entire zoom range 
Lens incorporates an all-new Multi-Focusing System, consisting of 2 AF drive units, precisely synchronized to deliver fast, accurate autofocusing 
Nikon's Stepping Motor (STM) provides smooth, fast and quiet autofocusing, whether shooting stills or video 
Extensively sealed to keep dust and moisture out, especially around all moving parts of the lens barrel, for worry-free durability