This zoom lens, with a fixed F value of f/2.8, offers new shooting possibilities for still and movie creators with its large-aperture zoom and mobility. The RF16-28mm f/2.8 IS STM is a compact, lightweight, ultra-wide-angle zoom lens with a minimum focal length of 16mm and a weight of just 445g (approx.). The advanced optical system delivers high image quality approaching that of L-series lenses. Two high-precision aspherical lenses are used in the front element, to effectively suppress the various types of aberration typical of large-aperture and wide-angle lenses. In addition, the use of four UD lens elements helps to correct chromatic aberration to a degree comparable with that of two fluorite lenses. The result is a lens that delivers sharp and vivid images down to the finest detail.
In addition, an inner-focus and lead-screw-type STM provides fast and precise autofocus for still images, and smooth, quiet AF operation when taking videos. The minimum focus distance is 0.2m, allowing the user to get in close and take macro photos. When used in combination with the maximum aperture of f/2.8, it can achieve a pronounced bokeh effect. The lens also has superior image stabilization (IS) features, which reduce camera-shake blur as effectively as a 5.5-stop increase in shutter speed* at the center of the image. When used together with the coordinated control features of an EOS R-series camera equipped with in-body IS, the image stabilization effect is even greater.
*When used with EOS R camera at a focal length of 28mm. Based on CIPA standards. Effective in the yaw and pitch directions only.
Angle of View (Horizontal/Vertical/Diagonal) | 98°~65° / 74°10’~46° / 108°10'~75° |
Lens Construction | 16 elements in 13 groups |
Aperture Blades | 9 |
Min. Aperture | 22 |
Min. Focusing Distance | 0.2m at 28mm |
Max. Magnification | 0.26x at 28mm |
Filter Size | 67mm |
Max. Diameter x Length | Approx. φ76.5 x 91.0mm |
Weight | Approx. 445g |