Canon 7D focus issue-new observation

Started Mar 31, 2013 | Discussions thread
GrantD New Member • Posts: 18
Re: Canon 7D focus issue-new observation

I've had a 7d for more than 3 years now. Most of the time I've been very happy with the focus, huge improvement over my old 40d. I use it a lot with a 100-400 lens for bird photography, using centre point expanded for BIF and spot for when they are still. Mid last year I unexpectedly had some big problems, lots of out of focus images for no obvious reason - using same shutter speed etc as usual. The only thing I could put it down to was that I was experimenting using other than spot focus for stationary subjects. I haven't taken a lot of bird photos for quite a while now, but the ones I have taken, with spot focus, are back to being good again. An intermittent problem, or a problem with focus modes?

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