When trying to shoot on any manual settings on my camera (including Av) my lense will not focus. The lense is set to auto focus. I am using a 70-200 2.8 ex HSM on a Rebel xt. Any help would be greatly appreciated. Thanks!
kennys350d Senior Member 460 posts Joined Jul 2006 Location: Arizona More info | Sep 23, 2009 14:35 | #1 When trying to shoot on any manual settings on my camera (including Av) my lense will not focus. The lense is set to auto focus. I am using a 70-200 2.8 ex HSM on a Rebel xt. Any help would be greatly appreciated. Thanks!
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davidnholtjr Member  186 posts Joined Jan 2009 Location: Maryland USA More info | Sep 23, 2009 15:54 | #2 kennys350d wrote in post #8696607  When trying to shoot on any manual settings on my camera (including Av) my lense will not focus. The lense is set to auto focus. I am using a 70-200 2.8 ex HSM on a Rebel xt. Any help would be greatly appreciated. Thanks! Try taking the lens off then back on and see what happens. Sometimes this works with 3rd party lenses. Do other lenses work fine? Also clean off the contacts on the lens. If still not working, then call Sigma as you may need service. Later, David
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plasticmotif Goldmember  3,174 posts Likes: 2 Joined Sep 2008 Location: Tennessee More info | Sep 23, 2009 16:08 | #3 Clean the contacts? Mac P.
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tkbslc Cream of the Crop 24,604 posts Likes: 45 Joined Nov 2008 Location: Utah, USA More info | Sep 23, 2009 16:18 | #4 Is it a really old one? Has it worked before? Taylor
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Sep 23, 2009 16:50 | #5 Try it on another body if you can..just to see if it's the camera or lens. Gear List
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davidnholtjr Member 186 posts Joined Jan 2009 Location: Maryland USA More info | Sep 23, 2009 17:29 | #6 plasticmotif wrote in post #8697191 Clean the contacts? The little brass colored contacts that link the lens and body so they can communicate with one another. If these get dirty then the lens will not work right. Later, David
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