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.
I was hoping for the new Sigma BF camera, simple and elegant. Unfortunately no Bluetooth, which is a deal breaker for me.