Re: Does Zoom Lenses create Dust?

Joel wrote:
Paul Furman <paul-@xxxxxxxxxxxxx> wrote:

RahQ5@xxxxxxxxx wrote:
Would using a zoom lens on a DSLR camera create dust on the sensor
merely by focusing??

Someone told me that, and suggested a fixed focal lens. Is this true?
Yes but it's not that bad.

I have a 70-300mm zoom lens that I rarely use but would like to try it
on my XT Digital Rebel. Maybe I can trade it in on a fixed focal lens. Sucking in air/dust by
zooming isn't what I'd like. I'm new to DSLRs. Thanks!
Don't worry. Get a rocket blower & blow it out every several lens changes and you probably won't need anything more complicated than that for a long time.

I think it means the dirts get sucked inside the lens (other side of the
glass), and I think Canon 100-400mm (?) is one of few Canon Push<->Pull lens

That happens to prime lenses also.

--
Paul Furman
www.edgehill.net
www.baynatives.com

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