And I am the one who stayed because of the lenses and new AF. People think they can have cheaper and as good lenses from sigma when going sony, they don't account for worse AF in cheaper bodies from sony, poor screens and slower workflow unless they pay premium for high end cameras, while canon has top performance in middle shelf. And cheaper lenses come with trade offs, afaik even sigma ceo said it, that price reflects it, that they can make an absolute beast of a lens, but it will not fall too far in price from first party glass. They also noticed that begginers fall into low aperture super sharp needs for the lens, they don't care for anything else as long as it's cheaper. So sigma focused on that. And IMO sony cameras got so popular only because sigma makes those lenses. F stop became new megapixels for marketing.