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| p.2 #18 · Push/Pull Zoom vs Rotating Zoom Ring |
The Canon 100-400 is the only Canon-mount lens that I know of that is push-pull.
Are there others?
At least those, only the top 2 are still made.
I loved the old 70-210 twist and zoom, you could manually focus and zoom in one fast motion, at the time, it was great for fast action that needed zooming to follow it. Still is.
Plus, 50-200/3.5-4.5 L and 50-200/3.5-4.5 (not L).
Also, there are two versions of the 100-300/5.6, one of them is "L", the other is not.
I use the 28-300L IS plus a few "Alternative" push-pull (PP) zooms, plus I used to own the 50-200L, 100-300L, and a ton of old manual focus PP zooms. I've never had problems switching between PP and the zoom-ring lenses. As long as the push/pull mechanism is smooth, and not too tight or too loose, it's a pleasure to use. IMO, a PP zoom lens is more 'organic' than a zoom-ring lens - if you want a longer focal length, you simply make the lens longer.