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Raymo. What I meant was the travel on an auto lens is only a quarter of a turn because the motors r small. They have re-engineered the optics to reduce the distance.
A manual focus lens usually has a minimum of half a revolution and frequently more.
My old 300mm makes more than one revolution between closest focus and infinity.
The close up photography I do with my short zoom and standard is made harder by the short travel distance because a movement of 1/2mm will throw it well out. Just taking my fingers of the focus ring on auto focus lenses can ruin focus.
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