Image on top shows the current 16-35mm f/4.0 Zeiss FE lens
I got one more confirmation the 16-35mm f/2.8 GM lens has been developed by Sony. There is even an indirect confirmation from a Sony photographer at the Photokina show (youtube video here in German). When showing the 16-35mm f/4.0 lens he says: “Here we have a 16-35 f4. For the beginning. I didn’t say that…”
I just wonder when Sony will announce the lens. Why? because just recently Sony had to delay the 70-200mm GM shipment by up to three months! Don’t know if there is a production chain issue or really a high demand as stated by Sony.