DSLR lenses - do 'sealed' lenses not suck in dust?

Started Sep 27, 2012 | Discussions thread
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SoCalBeachBum
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DSLR lenses - do 'sealed' lenses not suck in dust?
Sep 27, 2012

reviewing DSLR lens choices, the higher end lenses say they are sealed. does this mean dust would not get sucked into the body as easily?

or does dust get sucked into a body through card and battery doors? is the sucking action less on lenses that do not extend when focusing or zooming?

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