It is a little sad honestly how Canon has now been surpassed by Sony in both sensor technology and lens optical quality and yet they double down on forcing people to use their expensive lenses. I miss the old days when EF mount was the lingua franca of autofocus mounts with a thriving ecosystem of lenses from Sigma, Tamron, and the like. Even now some of the Sigma Art lenses for SLR mounts, like the 40mm and 105mm f/1.4, are peerless in terms of image quality.
I recently purchased my first non-Canon lens for my Canon 5D, a Sigma 105mm f1.4 Art with EF mount. I bought it specifically for bokehrama (Brenizer method) work—mostly car stuff. It’s comically big and heavy and I have read of people having lens failures but, oh wow, it makes beautiful images at a focal length I love.
