If its a zoom lock switch, its really really disapointing.
A world class lens, updated with even better optics , probably selling for a premium, and they leave out IS and have to include a zoom lock so the front element does not extend Come on....that is pure BS.
Mystery solved: "A zoom lock lever locks the zoom position at the wide end for safe transporting while attached to an EOS DSLR camera over the shoulder."
From the photo and the news release text "A zoom lock lever locks the zoom position at the wide end", it's obvious that the Mk II is not a "reverse zoom" design. I thought this was a clever feature of the Mk I as it allowed the hood length to be matched to the focal length, plus it allowed the total lens length to be fixed when the hood was in place (albeit, it was a monster hood).
Does the reverse zoom design of the Mk I contribute to its larger size and weight compared to the Mk II?
I actually like the reverse zoom design - it's pretty ingenious. I also like that the lens hood works very well for all focal lengths, not just for a handful of them.
Come on....that is pure BS.
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