new Sigma 200-500 f/2.8 EX DG

Started Mar 8, 2007 | Discussions thread
pdw Contributing Member • Posts: 689
I think the rear portion of the lens rotates.

So the majority of the barrel (where the handle is) does not rotate but the rear portion does. This picture shows a knob that could be for that.

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pdw
pdw
pdw
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bkj
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