Re: [KOML] 90mm lens rattles

[Doug Braun <dbraun@scdt.intel.com>]

>I picked up a nice 58/5.6 the other day and so had the first occaision in
>quite a while to remove my 90mm lens from the body.  Ugh.  There's
>something very small and very loose inside this lens, I could here it
>rattle when I tilted the lens around.  Never noticed it with the lens on
>the camera and it still takes great photos.  Nothing in the optical path is
>amiss.  The shutter cock lever seems to have more fore/aft play than it
>should or did a couple months ago (last time I cocked the lens manually).

The cocking lever that sticks out of the lens turns on a ring that runs
on little ball bearings.  I bet that something has gotten loose, allowing
one of the balls to fall out.  I don't thing that there is any chance if it
getting in the way of the lens elements or the shutter/diaphgrahm mechanism,
but if any more fall out, the cocking lever could jam up.

These lenses are more complicated inside than they could be. Disassembling
the rear half is a pain because of the wire that runs from the flash sync
contacts in the shutter to the connector on the outside.  I learned
this the hard way...  But I bet a pro would have this set right in a jiffy.

Doug Braun