striving opened this issue on Feb 18, 2007 · 23 posts
jdehaven posted Sun, 25 February 2007 at 2:17 PM
It's got a little piezo electric unit that vibrates the cover of the CMOS censor-- initiated on startup and shutdown. Look at this video 1/4 of the page down: http://www.dpreview.com/news/0608/06082416canoneos400drebelxti.asp