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Photography Q&A
Autofocus mechanism
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<blockquote data-quote="Eyelight" data-source="post: 369902" data-attributes="member: 24753"><p>I did do a little research on flight speed, wing beats and bird anatomy, but there is some guesswork and maybe a smidgeon of speculation. One thing to bear in mind is that the wing speed can vary dramatically depending on the movement.</p><p></p><p>Can't rule out DOF unless you have a small bird in a big field, which is rarely the case, becasue we zoom to the subject size and collapse the DOF on the subject.</p><p></p><p>I suspect that wingtip speed will be similar across various sizes of birds because the slower beat is offset by the longer span.</p></blockquote><p></p>
[QUOTE="Eyelight, post: 369902, member: 24753"] I did do a little research on flight speed, wing beats and bird anatomy, but there is some guesswork and maybe a smidgeon of speculation. One thing to bear in mind is that the wing speed can vary dramatically depending on the movement. Can't rule out DOF unless you have a small bird in a big field, which is rarely the case, becasue we zoom to the subject size and collapse the DOF on the subject. I suspect that wingtip speed will be similar across various sizes of birds because the slower beat is offset by the longer span. [/QUOTE]
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