In addition to the RF-S 7.8mm f/4 STM, Canon also announced a new RF-S 3.9mm f/3.5 STM Dual Fisheye lens for VR content (pre-order here | additional information):
Apple Apple Computers AstrHori lenses for Canon cameras Canon 28-70mm f/2.8 Canon 28-70mm F2.8 Canon 100mm f/4 Macro Canon 100mm F4 Macro Canon 300mm f/4 Macro Canon 400-600mm F2.8-4 Canon AE-1 Canon AE1 Canon Cine-Servo 17-120mm T2.95-3.9 Canon Cinema EOS C400 Canon EOS R1 Canon EOS R5 Mark II Canon EOS R6 Mark III Canonet QL17 Canon RF-S 3.9mm f/3.5 STM Dual Fisheye lens Canon RF-S 7.8mm f/4 STM lens Canon RF 35mm f/1.4L VCM Canon rumors Canon Speedlite EL-10 Financial Financial Report Financial Results Godox Godox AD600Pro II Lexar Nikon Z 7II Nikon Z7II rebates Sandisk SanDisk SDUC SDUC Sigma SIGMA 18-50mm F2.8 DC DN | Contemporary Sigma lenses for Canon RF-mount SmallRig Sony a7RV Sony ILCE-7M4 Tamron Thypoch Simera 35mm f/1.4 Thypoch Simera 50mm f/1.4 TTArtisan TTArtisan Magnetic LED Light Film Canister