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Is this the beginning of the end?

Started Oct 10, 2016 | Questions thread
riknash Veteran Member • Posts: 6,874
Re: Is this the beginning of the end?
1
  1. shutterstutter wrote:

Hi,

I have been using an EF100-400mm L (mark I) for the last few years now (on and off) and hadn't used it for a while.

Today I took it out for a spin and noticed a serious "clunk" each time the stabiliser kicked in (and stopped for that matter).

I am talking a serious metallic kind of clunk that is very much audible and can also be felt when putting your hand around the front of the barrel!

Now I am quite sure that this clunk was not there on the past and am wondering if this is the first step in the failing process of my IS?

Do any of you, who have used an EF100-400, ever had this happening to their lens, and if so, what was the end result...?

Thanks!!

The beginning-end result was to get it repaired and then sell it for replacement with a 100-400 II version with a huge loss due to having to first repair it.  You could attempt to sell as-is but full disclosure would be appropriate. You could keep it after its repaired and continue to use it. You could just continue to use it and if the IS fails, simply shut it off and keep shooting.  Good luck with your decision.

 riknash's gear list:riknash's gear list
Canon EOS 7D Mark II Canon EOS 5D Mark IV Canon EF 24-70mm F4L IS USM Canon EF 200-400mm f/4L IS USM Extender 1.4x HTC One
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