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From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
>I got another question yet - for the Canon 100-400IS lens users - do you
>notice any dust (or moisture) getting into this lens due to it being
>push/pull zoom?
>How does it "survive" in bad weather? Maybe in comparison with Canon
>70/80-200L - if you also have one of those?
>George
>
George
Unfortunately it does tend to collect some dust over time. I've had my
70-200 about a year longer than the 100-400 and the 70-200 is still
completely clean, but the 100-400 has some dust on the inside elements. I
must say that I have taken it to the most dusty western (desert) parts of
this country and on some severely dusty dirt roads. My 35-350 has been
cleaned three times already (the last time there was some obvious moisture
on the inside elements)
I think the very nature of a 'push-pull' design has to suck in some dust
over time when extending it: its unavoidable.
Regards
Thys
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Thys van der Merwe
Photography Website: http://home.mweb.co.za/te/teknovis/
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