any dust problems 100-400mm ?

Started Jul 4, 2012 | Discussions thread
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m chalkley
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any dust problems 100-400mm ?
Jul 4, 2012

hi
considering on 2 lenses, 100-400 or 400mm prime.

i would like to know more about the so called "hoover lens" 100-400mm is it true or has anyone ever suffered dust particals been sucked into glass elements?

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regards

michael

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