Canon has expanded its L-series range with the Canon RF 10-20mm F4 L IS STM wide angle zoom lens.
- Aspherical, Super UD, and UD lens elements (including one Aspherical UD element)
- Dustproof and waterproof
- SWC (on 2 lens surfaces) and ASC (Air Sphere Coating)
- STM motor and full-time manual focus capability