Canon says full-frame RF lens expansion now depends on Sigma, following comments by executive Go Tokura in a CP+ 2026 interview published on March 27, 2026. Speaking in Yokohama, Tokura said Canon does not separate full-frame and APS-C lenses when it comes to third-party access to its RF mount system, which is the connection used for its mirrorless cameras.
The statement challenges a long-standing belief that Canon restricts third-party full-frame lenses. Tokura explained that Canon’s approach is neutral, and the current lack of full-frame options from third parties is not due to company policy. Instead, he pointed out that third-party involvement is growing but may still be shaped by business strategies and agreements that are not publicly disclosed. Canon also noted that its own RF lineup has already surpassed 60 lenses, showing strong in-house development.
For Sigma, moving into full-frame RF lenses is not automatic. Its current RF lineup, built under license from Canon, focuses on APS-C lenses, which are designed for smaller sensors. Developing full-frame lenses requires more work, including testing compatibility with features like autofocus, which helps a camera lock onto a subject, and stabilization, which reduces blur. Sigma must handle this process independently, as Canon does not provide technical assistance or share internal design details.
This situation shifts attention directly to Sigma’s roadmap. While the company has already entered the RF system, it has not announced when full-frame lenses will arrive.
For users, the message is simple: the next wave of affordable full-frame RF lenses will depend on how quickly Sigma decides to move.
Leave a Reply