cleaning dust off 17-35mm f2.8 inner elements

Started Jul 14, 2010 | Discussions thread
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Jeff Greenberg
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cleaning dust off 17-35mm f2.8 inner elements
Jul 14, 2010

Recently, the plastic ring with "Ultrasonic" printed on it
(in front of wider rubber zoom ring)
popped out of place, probably due to 100F heat;
immediately snapped it back in place without investigating what was exposed...
but am wondering if I can get at inner element dust
by popping it off again temporarily, then pssssst, psssst
canned air...? Do I risk alignment issues? Advice appreciated.
--
regards jg
http://www.PhotosPhotos.net

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