Canon filed new RF-mount lens patents for 300mm F2.8 1.4x, 400mm F2.8 1.4x, 600mm F4 1.4x with built-in teleconverters.
[Publication number] P2022142979
[Publication date] October 3, 2022
[Patent application title] Optical system, lens device, imaging device
More details of the new Canon Patents for full-frame mirrorless cameras can be found below.
Continue reading “Canon Patents: 300mm F2.8 1.4x, 400mm F2.8 1.4x, 600mm F4 1.4x with Built-in Teleconverters”