Broken 70-200 f4/L IS

Started Apr 3, 2013 | Discussions thread
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dherzstein
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Broken 70-200 f4/L IS
Apr 3, 2013

Two weeks ago I returned from a month-long vaction in New Zealand - I'm still reviewing and processing those images.  Among the lenses that I brought along was my EF 70-200 f/4L IS - it worked flawlessly on the trip.

Last weekend, I brought the same lens along on a short hike.  Through the viewfinder, I could never get a sharp image - it was especially soft in the corners.  At home, reviewing the images on the computer monitor confirmed that there was a problem.  Images taken with my other lens showed no problems.  (I was particularly bummed since I saw, and photographed, 3 different bobcats on the hike.) 

I tested and confirmed that my beloved 70-200 had a problem.  The IS mechanism works, as does the AF mechanism, but it produces only a "lens baby" effect.  When I rocked the lens forward and back, I could hear something loose inside.

Monday, I sent it off to Canon in Irvine, California, for an out-of-warranty repair.  They received it today and I now await their diagnosis.

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