I thought it was a prototype of 560mm lens but that striped pattern is an interesting detail
which has not exist (or we couldn't see before due to angles etc.)
on previous prototype version. Also almost every comment has something about its long length as a negative case at least for transport. Maybe they have started to think about use that collapsible design in new tele lenses. We don't know but it's interesting to see even if it is the same mock-up or something else.
Update. Prototype version has it.
The question is why did they show it again?
Last edited by ogunturkay; 03-21-2016 at 11:20 AM.