The Zeiss 50mm f/1.4 ZE Planar T* Lens is a high-speed standard lens considered by many professional photographers to be one of the world's best 50mm lenses, this "ZE" lens is now available for the Canon EF (EOS) bayonet SLR system.
This is a manual focus only lens, however all existing exposure programs (P, AV, TV, M) plus the AF verification function of the camera are supported, and lens information (focal length and speed) is passed on to the camera.