The constant f/2.8 aperture across a 17-28mm range, paired with a lightweight 450g, weather-sealed build, makes this an unobtrusive, all-day lens for cramped interiors and wide exteriors. Its stepping motor drives near-silent autofocus that's ideal for gimbal video, while 3 aspherical and 2 ED elements maintain corner-to-corner sharpness even wide open. This lens is best for real estate photographers and videographers who need one workhorse wide-angle to handle both detailed stills and continuous walkthrough footage.
