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Photography Q&A
AF or AF-S...
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<blockquote data-quote="WayneF" data-source="post: 362769" data-attributes="member: 12496"><p>There are two factors. </p><p></p><p>The AF-S lenses have a focus motor in them, but the AF lenses do not, and depend on the camera body to provide a motor.</p><p></p><p>Today, the more top-end camera bodies (D7100 and up) still provide the motor for AF lenses. The lower end bodies (D3100, D5100 today) do not.</p><p></p><p>So, the meaning is, AF lenses may not auto focus on many bodies today, those that don't provide the old motor.</p></blockquote><p></p>
[QUOTE="WayneF, post: 362769, member: 12496"] There are two factors. The AF-S lenses have a focus motor in them, but the AF lenses do not, and depend on the camera body to provide a motor. Today, the more top-end camera bodies (D7100 and up) still provide the motor for AF lenses. The lower end bodies (D3100, D5100 today) do not. So, the meaning is, AF lenses may not auto focus on many bodies today, those that don't provide the old motor. [/QUOTE]
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