So my 30 D cant seem to lock focus in auto with my 50 1.4, 24-105 or 70-200 2.8.
All lenses work fine on my 5D.
tried cleanining the contacts still not working, any suggestions??
Sgt. Senior Member  More info | Aug 13, 2009 20:01 | #1 So my 30 D cant seem to lock focus in auto with my 50 1.4, 24-105 or 70-200 2.8. Iain
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mminnig Senior Member 329 posts Joined May 2007 More info | Aug 13, 2009 21:34 | #2 Wow. I just posted the exact same problem on the exact same camera! Mine doesn't even attempt to autofocus. No hunting, nothing.
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Aiden Member  224 posts Joined Aug 2009 More info | Aug 13, 2009 21:47 | #3 I know on my 300d it was a spring on the secondary mirror, then inside something went wrong. I wish I could help you guys out more. Sorry! 5dc|28-75 f2.8|
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mminnig Senior Member 329 posts Joined May 2007 More info | Aug 13, 2009 21:49 | #4 Well mine was an easy fix. Basically I'm an idiot and forgot about Custom Function #4.
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Mazu Member  140 posts Joined Oct 2006 Location: Finland More info | Does it lock focus in other modes? What is the AF mode set to? Canon 30D, Tokina 100mm macro, Sigma 17-70, 50mm 1.8, 85mm 1.8, 70-200 f/4L IS
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