- Focal Length: 28-70mm
- Aperture Range: f/2 to f/22
- Canon RF Mount
- Full Frame CMOS Format
- Control Ring
- 19 lens elements in 13 groups
- Nano USM Autofocusing
Canon RF 28-70mm f/2L USM Lens
The Canon RF 28-70mm f/2L USM Lens features offers unparalleled performance throughout its zoom range. With L series optics, the RF 28-70mm lens offers the flexibility and superlative performance from a 28-70mm focal length. The RF 28-70 f/2L USM lens is a large-diameter, standard L zoom lens with a bright f/2.0 constant aperture across the entire zoom range. RF lenses are intended for professional photographers, high-end amateurs, and low-light moviemaking and were built for compatibility with the new Canon EOS R mirrorless system and Canon RF Mount.
The RF 28-70mm f/2L lens is comprised of 19 lens elements in 13 groups. The strategic position of the lens’ four aspheric lens elements helps to minimize astigmatism, spherical aberration and geometric distortion. The two UD (ultra-low dispersion) and one Super UD elements curtail longitudinal and lateral chromatic aberrations. The large diameter mount and the short back focus are ideal tools in maintaining higher brightness of f/2.0 maximum aperture. These two factors mean the front section of the lens can be physically much smaller than conventional EF lens architecture.
All RF lenses incorporate a control ring on the lens barrel that can directly adjust numerous settings including shutter speed, aperture, exposure compensation and more. Located towards the front of the lens and effectively adding a third dial to the EOS R camera’s main dial and quick control dial, the ring has a tactile, easily distinguished surface and features a clicking mechanism that provides tangible feedback for confident use while looking through the viewfinder.
The RF 28-70mm lens was built to handle the rigors of professional use. With a rugged, refined, and precise construction, this lens was built so that you can intuitively concentrate on the subject at hand. The Canon RF 28-70mm f/2L USM Lens is vibration shock resistant in the lens barrel to help maintain focus and settings. A dust and water resistant construction protects against difficult weather conditions while the Fluorine coating prevents dirt and dust from sticking.