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<blockquote data-quote="heepfan" data-source="post: 126960" data-attributes="member: 13214">I got a new 3100 along with a Sigma zoom. The auto fucus does not work at all with the zoom. am I doing something wrong or it this normal and will I have to just get used to manual focus with this lens. My eyes arent what they used to be and I cant seem to get very crisp pics like this.I should add that it does try to focus automatically but will never settle on a focus. It just goes from one end of focus to the other and never settles on proper focus. 

Read more: <a href="http://nikonites.com/d3100/11999-sigma-dg-70-300-zoom-auto-focus.html#ixzz2NrDgUJzD" target="_blank">http://nikonites.com/d3100/11999-sigma-dg-70-300-zoom-auto-focus.html#ixzz2NrDgUJzD</a><a href="mailto:heepfan@aol.com">heepfan@aol.com</a></blockquote>

[QUOTE="heepfan, post: 126960, member: 13214"] I got a new 3100 along with a Sigma zoom. The auto fucus does not work at all with the zoom. am I doing something wrong or it this normal and will I have to just get used to manual focus with this lens. My eyes arent what they used to be and I cant seem to get very crisp pics like this.[LEFT][COLOR=#000000]I should add that it does try to focus automatically but will never settle on a focus. It just goes from one end of focus to the other and never settles on proper focus. Read more: [URL]http://nikonites.com/d3100/11999-sigma-dg-70-300-zoom-auto-focus.html#ixzz2NrDgUJzD[/URL][/COLOR][/LEFT] [EMAIL="heepfan@aol.com"]heepfan@aol.com[/EMAIL] [/QUOTE]

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