p.2 #1If you could redesign the Sony telephoto roadmap for nature/wildlife, what would you change?
400 f2.8 and 600 f4 with built in TC's are the no brainer.
The other one I'd like is something like the RF 100-500 f4.5 - f7.1. That's been my favorite lens on Canon, and one of my favorite lenses ever.
The other would be something like the rumored 300-600 f5.6, which can take a TC and become a 420-800 f8. I am disappointed with the quality of the existing 400-800, so have to look somewhere else for that.