ZX11
•
Veteran Member
•
Posts: 6,156
Re: A very mixed experience with the RF 70-200 f2.8
1
rrc1967 wrote:
PGSanta wrote:
JE River wrote:
I wonder if Canon forced themselves to put a longer throw into the zoom ring because of the telescoping design. The seals and support structure for zooming that large chunk of glass and barrel probably need a lot more torque to zoom than the more traditional single barrel 70-200 lenses. Thus, the zoom ring seems geared to sacrifice throw distance for mechanical advantage.
I would assume, if the new RF 70-200 is up to the same build quality standards needed in other 70-200 lenses, the extending barrel had to be overbuilt like crazy to gain the same strength and coaxial alignment found on the single barrel lenses. Then they likely tossed in some thick and tight dust and moisture seals to keep the lens from gunking up.
It wouldn't surprise me if Canon came out with another 70-200 f2.8 RF lens using a single barrel design if there are enough customers who want ultimate usability and don't care if it doesn't collapse smaller.
Of course they did. It was obviously a trade off for the design. Canonrumors already went over the patent for a non telescoping RF 70-200 f2.8; if the market demands it, it will come.
actually we did
But yes, as we suggested, it makes sense for Canon to have multiple choices. Let's face it .. on the EF mount they ultimately had 4 different 70-200's.
Another advantage of the EOS R and RP. Four different 70-200's, and the RF 70-200, to select from. Lots of choices. There is even a pretty good selection in the 24 (28)-70mm range. Canon aiming for every budget/quality need?
-- hide signature --
"Very funny, Scotty! Now beam me down my clothes."
"He's dead, Jim! You grab his tri-corder. I'll get his wallet."