But but what about the people who want a good quality 50mm and are willing to pay appropriate money?
And don't you think lots of people will buy the Sigma?
Canon DOES have the 50/1.2 lens. You can't deny the quality of that lens, despite it's spherical aberration, which as it so happens to be, is a DESIRABLE trait in a portrait lens for many photographers. Not everyone screams for perfect corner to corner sharpness. Sometimes, having soft corners is beneficial to guiding your viewers eyes to the subject...which tends to be near the center of the frame.
I've always admired photos taken with the Canon 50/1.2 and 85/1.2 lenses. They have a specific aesthetic appeal that is just WONDERFUL for portraiture specifically, and for a variety of other types of photography as well (such as street.) I find it ironic how so many people write off the Canon 50/1.2 and 85/1.2 lenses as if they don't even qualify to be included in the lineup for comparison.
So, what about the people who want quality? Canon offers a VERY high quality 50/1.2 lens that offers STUNNING and very aesthetically appealing results. You should give it a try sometime. Oh, and you'll spend about half as much on that as you would on an Otus...you won't get razor sharp corners, but it's HALF as much as an Otus.
So. Am I to infer that if Canon comes out with 50/1.2 II that is sharper and has better corner to corner sharpness then you would not DESIRE to use it?
I'm sure a lot of people would. I'm also sure that a lot of the people who currently love the soft-focus traits of the current 50/1.2 would be bummed if Canon copied the Otus design with razor sharp focus corner to corner. It's better to have a DIVERSITY of lenses with different traits, than for all manufacturers to make exactly the same things that behave exactly the same way.
I think the center performance of the 50/1.2 and 85/1.2 needs to be improved...in the grand scheme of things, it's a bit soft, and doesn't need to be. I do, however, hope Canon keeps the soft focus traits in place if they release a 50/1.2 II and 85/1.2 II. If I want a lens with perfect sharpness, I can always get the Otus...if Canon copies the Otus, then I'm suddenly left WITHOUT the option of buying a lens that purposely leaves in a certain amount of spherical aberration for artistic flare.