Canon RF 28-70mm f/2 L USM Lens

Overview

The Canon RF 28-70mm f/2 L USM Lens is a premium RF-mount standard zoom for full-frame Canon mirrorless cameras, combining the flexibility of a 28-70mm focal length range with the exceptional brightness of a constant f/2 maximum aperture. Covering wide-angle, standard, and short-telephoto perspectives, it is well suited to weddings, portraits, documentary work, events, travel, and low-light shooting where one fast zoom can replace several prime lenses.

Designed as part of Canon’s professional L-series lineup, the lens pairs Ultra-Low Dispersion glass with a robust optical formula to reduce chromatic aberration and maintain clarity across the zoom range. A ring-type Ultrasonic Motor autofocus system delivers fast, quiet, and precise focusing with full-time manual focus override, while the configurable Control Ring provides direct adjustment of exposure settings from the lens barrel. Its weather-resistant construction further supports reliable use in demanding outdoor and location environments.

Core Features

• The full-frame RF-mount design is built for Canon mirrorless cameras and covers a versatile 28-70mm zoom range.
• The constant f/2 maximum aperture delivers prime-like brightness throughout the zoom range for low-light work and shallow depth of field.
• Ultra-Low Dispersion elements help reduce colour fringing and chromatic aberration for clean, accurate image rendering.
• The ring-type Ultrasonic Motor autofocus system provides fast, quiet, and precise focusing with full-time manual override.
• The configurable Control Ring allows quick adjustment of exposure settings such as aperture, ISO, or exposure compensation.
• The rounded 9-blade diaphragm supports smooth, natural-looking background blur.
• The L-series weather-resistant design helps protect the lens against dust and moisture during demanding location shoots.

Prime-Like f/2 Brightness in a Professional Zoom

With a constant f/2 maximum aperture, this lens offers a level of speed rarely found in a zoom. It provides strong low-light capability and allows photographers to create pronounced subject separation without changing lenses, making it especially useful for event, portrait, and wedding work.

Fast USM Focusing with Full-Time Manual Control

The ring-type Ultrasonic Motor works with internal focusing, optimized focusing algorithms, and a high-speed CPU to deliver responsive autofocus performance. Full-time manual focus override gives photographers additional control when fine adjustments are needed.

L-Series Build for Demanding Locations

As a Canon L-series lens, the RF 28-70mm f/2 is built for professional use in challenging conditions. Its weather-resistant design helps guard against dust and moisture, while the included lens hood and pouch support protection during shooting and transport.