As you know there have been discussions and speculations about Canon RF lenses compared to Canon EF lenses about the design. The teardown of Canon RF 70-200mm f/2.8L IS lens proves that RF mount lenses have an entirely new design, check it out.
The Canon RF 70-200mm f/2.8L 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. Some of that is from the improved optical design; there’s less glass floating around. Some of it is the use of linear focusing motors.
[…] This lens was a new design from the ground up. There’s no ‘that’s the way we’ve always done it’ holdovers. That’s a lot more work for the designers, but the result is a beautifully engineered, fully modern lens. It’s clean, functional, and straightforward.[…] It’s obviously very robustly engineered from a mechanical standpoint. The internal composites are strong as hell. There are double cams, rods, and posts everywhere. There’s no play in any moving parts. We can’t imagine there will ever be play in the moving parts unless you run over it with a truck.
$500 off on Canon EOS R body: $1,799 at Amazon
$700 off on Canon EOS R with 24-105mm Lens: $2,699 at Amazon
$500 off on Canon EOS RP with 24-105mm Lens: $1,899 at Amazon
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