The Samsung 16-50mm f/2-2.8 S ED OIS is a premium normal-range zoom lens designed for Samsung NX-mount cameras. Key features include:

Fast-Aperture Zoom. With a focal length equivalent to 24-75mm after sensor crop factor, the Samsung 16-50mm f/2-2.8 S ED OIS is the go-to lens for wedding/event photography, portraiture, and all-around general-purpose use. It offers a very fast f/2-2.8 variable aperture that enables both subject/background isolation and low-light shooting.

Optical Image Stabilization. Provides up to four stops of correction when fully extended.

Premium “S” Series. The 16-50mm is the first in Samsung’s premium S-series line of lenses. The lenses in this line feature dust- and splash-proof all-metal builds that are great for shooting in less-than-ideal conditions, and Ultra-Precise Stepping Motors for extremely fast autofocus performance. Optical quality is also a high priority, with the 16-50mm utilizing three aspherical elements, two extra-low dispersion elements, and two eXtreme High Refractive elements that minimize optical aberrations while ensuring a high degree of image sharpness and clarity.

i-Function. Like many other Samsung lenses, the dedicated i-Function button on the 16-50mm’s barrel offers quick access to manual setting adjustments. Just hold the button and turn the “value ring” a.k.a. manual focus ring. The setting you’re adjusting will be based on what you assign the button to control in-camera.