BIF AI Servo mode on 7D

[Simon Wantling]

Hi, could I have some advice please. I'm using the canon 7D, and 500mm plus 1.4 converter, in AI servo mode for BIF. I seem to be having problems keeping focus. Not it may be my technique, but what focus method should I use - center point with expansion, zone? I'm just interested what is generally the best approach to use. I spent the morning out today and out of 100 images only 6 were useable and even those weren't very sharp at 100% in lightroom.

Thanks, Simon.

[Doug Brown]

Hi Simon. Have a look at this link (http://www.deepgreenphotography.com/2009/12/setting-up-your-new-canon-7d/) to my online setup guide for the 7D.

[BobbyPerkins]

Another possibly useful link for you by Gary Luhm:

Canon 7D: AI Servo Set-up for BIF (Bird in Flight) - http://garyluhm.net/canon-7d-ai-servo-set-up-for-bif-bird-in-flight-160-032010/

[David Smith]

Hi Simon. Have a look at this link (http://www.deepgreenphotography.com/2009/12/setting-up-your-new-canon-7d/) to my online setup guide for the 7D.

Doug...

I just went to your link and I don't know if there is a virus in the link or not, but it locked my computer up and when I restarted my computer, it had erased AOL and Internet Explorer.. I had to restore my computer to an earlier date to get everything back.. Don't know what it was, just giving you a heads up..

Dave

[Simon Wantling]

Hi Dave,

sorry to hear about that. I've checked it out plus all my files and everything seems fine. Not sure why that should happen. I'll keep an eye out though.

simon

[Simon Wantling]

Hi Dave and all. Just to confirm, I've checked all my files and all are clean. I can't imagine zenfolio having an issue and I've not had any other reports from anyone else. It must have been an odd computer clitch your end Dave.

simon