Lensrentals has teared down the new released RF 70-200mm f/2.8L IS USM lens (B&H Photo Video/Adorama/Amazon). This lens is currently the best selling RF mount lens. So how about the new design of this RF 70-200mm f/2.8L IS USM lens ? You can take a look at teardown of this lens at Lensrentals.
The Canon RF 70-200mm f/2.8 is a complex beast, but you get a quick feel for it being organized complexity, and it’s actually a much simpler layout than those other lenses.
This is going to hold up better than a metal lens, it’s probably sturdier, and it weighs far less.