Well, the Canon clamp down on not letting third-party lens manafcturers use the RF mount sets to have ended. SIGMA has announced that they are now making their lenses in Canon RF mount.
Sigma clearly states that The RF mount versions of the lenses are developed, manufactured and sold under license from Canon Inc.
According to Sigma, the control algorithm including AF drive and communication speed optimization has been developed specifically for Canon RF Mount interchangeable lenses. In addition to high-speed AF, the lenses also support AF-C (Continuous AF), in-camera aberration correction* and in-camera image stabilization. The mount is rubber-sealed to cater for use in a variety of environments.
* Available on supported cameras only.
Below you can see what lenses will be available in RF mount and when they will be available:
SIGMA 18-50mm F2.8 DC DN | Contemporary (July Availability)
The below lenses will be launched in fall of 2024 and onwards:
SIGMA 10-18mm F2.8 DC DN | Contemporary
SIGMA 16mm F1.4 DC DN | Contemporary
SIGMA 23mm F1.4 DC DN | Contemporary
SIGMA 30mm F1.4 DC DN | Contemporary
