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General Photography
Macro
IF-ED Lens
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<blockquote data-quote="Horoscope Fish" data-source="post: 464446" data-attributes="member: 13090"><p>Well first of all focusing and zooming are, of course, two different things. Internal Focus indicates the front lens element does not rotate and the lens barrel does not change length when focusing; zooming, though, is a separate issue. </p><p></p><p>Some lenses change length when zooming, some don't. The Nikon 70-300mm f/4.5-5.6G ED VR changes length when zooming but not when focusing (because it too has IF).</p><p></p><p>The short answer to your questions regarding the 60mm and 85mm Micro's is, yes; they both have Internal Focus.</p><p><span style="color: #FFFFFF">....</span></p></blockquote><p></p>
[QUOTE="Horoscope Fish, post: 464446, member: 13090"] Well first of all focusing and zooming are, of course, two different things. Internal Focus indicates the front lens element does not rotate and the lens barrel does not change length when focusing; zooming, though, is a separate issue. Some lenses change length when zooming, some don't. The Nikon 70-300mm f/4.5-5.6G ED VR changes length when zooming but not when focusing (because it too has IF). The short answer to your questions regarding the 60mm and 85mm Micro's is, yes; they both have Internal Focus. [COLOR="#FFFFFF"]....[/COLOR] [/QUOTE]
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