Now that Canon has announced theirs and there has been plenty of reviews of it, I’m wondering when we can see competing products from the likes of Sony and Nikon or third parties like Tamron or Sigma? I’m new to photography and haven’t yet grasped the cadence of releases like this. Do competing products come around pretty quickly or are all of them just blindsided by this and maybe more than a year off from having a viable product?
I don’t think companies are blindsided. Most have a roadmap of what they are working on and releasing in the future. A lot of manufactures have a great lens release every month it seems. Look at the Nikon Plena.