« on: November 17, 2013, 10:01:45 PM »
So I more or less, inherited a canon 70-200 f/2.8 IS (mark i), the glass is super sharp however before i got it, the lens was dropped from a tree. Because of this, the internal USM focusing motor is loose on the inside of the barrel. This causes a lot of shots to go out of focus, (duh) but all I have to do is tip the front element up towards the sky and the USM will fall back into place and I can keep shooting. The opposite is also true, if i point the lens towards the ground the USM will fall out of place and the lens wont focus on anything. Also due to the loose elements, a lot shots just end up soft from time to time.
First question, has anyone experienced a similar phenomena with this lens or any other for that matter?
Next, I'm ready to get the lens repaired, I have no experience shipping things off to canon. Does anyone have any idea how much a repair like this would cost? Also, what's the next step in contacting canon and shipping the lens back to the mothership?