Autofocus & Drive Modes on Canon EOS 40D : Canon EOS 40D: Autofocus Servo for Moving Subjects

Take great sports photos with this Canon camera feature. Learn how to use the autofocus servo of theCanon EOS 40D Digital SLR camera in this free Canon photography lesson. Expert: Ryan Vaughn Bio: Ryan Vaughn is a photo enthusiast who has used his expertise for professional wedding portraits and business promotion. He has used Canon's 20D and 30D models as well as the the 40D. Filmmaker: MAKE | MEDIA

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