Question about Canon EF 100-400mm f/4.5-5.6 IS USM Lens

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My canon 100-40mm lens will not release from the camera body. The lens nor the body has ever been dropped. Yesterday afternoon while I was using it along with my canon 70-300mm IS I had no problems whatsoever switching in between. Any thoughts about what could be wrong and what can be done to remedy the problem.

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  • syko125 Sep 07, 2009

    I just tried removing the battery and it had no effect. However to answer question I'm using a canon rebel xti.

  • syko125 Sep 07, 2009

    I just tried removing the battery and it had no effect. However to answer question I'm using a canon rebel xti.

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Lens is cross linked in the mount.

You did not say anything about the camera body or the model. Try removing the battery first to see if the auto mount mechanism will release it.

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Posted on Sep 07, 2009

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http://en.wikipedia.org/wiki/Camera_lens
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