In article <2010100315271511272-savageduck1@REMOVESPAMmecom>,
savageduck1@{REMOVESPAM}me.com says...
>
> On 2010-10-03 15:16:27 -0700, Wayne <> said:
>
> > A friend dropped her T1i and after taking the lens off, this part was
> > found lying on the mirror:
> >
> > http://home.comcast.net/~bruzeks1/part.jpg
> >
> > She states that the camera appears to work okay without it. Anybody
> > know what it is / for?
> >
> > TIA,
> >
> > Wayne
>
>
> Sorry I have no idea of what it is, other than a strange feeling I have.
>
> ...and that is, it is probably going to be the reason for sending both
> the camera, and the mystery object to her nearest Canon repair center.
>
> Good luck.
If it were me I'd turn the camera nose down with the lens off and give
it some shakes and taps and see if any _other_ pieces fall out, because
there should have been something holding that in place.
Also, I'd test it in all orientations to be sure that that wasn't
something needed for it to, say, work upside down, and do the same for
the hot shoe and all the signal connectors, etc. I'd rather know up
front what if anything is not working than find out later when I needed
it to work and it didn't.
And look inside with an inspection mirror and a good light--that _might_
if one is lucky snap in somewhere.
As a guess I'd bet on it being a sliding electrical contact. The
multiple fingers going into one solid piece suggest it's a ground, which
would also be consistent with the camera still working--if it is a
ground there is likely another somewhere although not one that the
designers intended--designers are careful about isolating hots but not
so much about grounds.