New built-in TC lens

[goulab]

Hello,

The 200-400mm's built-in TC seems seems to satisfy most customers. Have you heard some rumors about a new lens with this technology ? 300mm 2.8, 500mm f4, 400mm f4... ?

Thanks ! Have a nice day !

 

[neuroanatomist]

It'd be great in a 500/4 or 600/4. It's not new, some FD supertele lenses had them.