When Does Auto Focus Work Best?

Berry Eagles 031316h copy

Berry Eagles 031316m copy

When does Auto Focus work best?
 
Teaching all the classes and listening to other photographers, as well as from personal experience, there are times that AF works great and sometimes it struggles when shooting birds in flight. When your subject is against a clear blue sky, it works great! When you have a moving subject against a cluttered background it can struggle. The key is often to select a small zone for the camera to focus, make sure your subject dominates that zone, and finally hope for good light. If your light is muted it will struggle but as you can see from the second image, it isn’t impossible though.
 
Both images were made using the Tamron SP 150-600mm Di VC USD lens on a Canon 7Dii, various settings and one on the Sirui N3204X tripod and PH20 Gimbal head, processed in Lightroom CC.
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4 Responses to “When Does Auto Focus Work Best?”

  1. Steve Fassio Says:

    Great description of what works when using AF. I have some beautiful images of BIF but they are usually with clear backgrounds. Thanks David!

  2. Thanks for this tidbit of information. I will try to be more conscious of background when trying to capture birds in flight.

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