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New 70-300 DO?

neuroanatomist said:
Possible but I wouldn't hold my breath. The much newer 70-300L is fairly compact and optically excellent. I almost think (hope?) we'll see a 100-400 DO instead.

I'd like to see that. Assuming that the bigger the lens, the more benefit you'd get from DO, I'd also like to see a DO superzoom—say a 24–600 DO.
 
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I tried out the 70-300 DO amongst others before buying my 70-300L. The L achieved most of the goals of the DO, so I think that if the technology is to be used for a zoom, it would make more sense for a superzoom, as dgatwood suggests. That would allow Canon to respond to the longer superzooms available from third parties, and achieve an f/5.6 aperture at maximum zoom for maximum compatibility with AF in camera bodies.
 
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